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GMC · Known Issues

2015-2026 GMC Canyon Problems: 18 Known Issues

2015-2026 model years · 1,360+ owner reports · Updated September 2026

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Issue summary

According to Au7o's analysis of 1,360+ owner reports, the 2015-2026 GMC Canyon has 18 documented known issues, with 10 rated critical. The most serious are 8L45 8-Speed Transmission Torque Converter Shudder ($150-$4,000 repair), Driver Airbag Inflator Misalignment / SDM Reprogram (Recall 14690), Active Fuel Management (AFM) Lifter Failure (V6) ($800-$2,500 repair), Front Camera Module False Object Detection Causing Unexpected Automatic Emergency Braking (Recall 24V133000) ($0-$0 repair), Over-Tightened / Damaged Front Wheel Hub Bolts Allowing Wheel Hub Separation (Recall 24V237000) ($0-$0 repair), Fuel Pump Lock Ring Not Fully Locked to Fuel Tank - Fuel Leak in a Crash (Recall 24V491000) ($0-$0 repair), AT4X AEV Sensing and Diagnostic Module Miscalibration - Excessive-Force Passenger Airbag Deployment (Recall 25V856000) ($0-$0 repair), Upper Radiator Hose Quick-Connect Seal Leak on 2.7L L3B - Coolant Loss, Overheating and P3075 ($250-$550 repair), Front Brake Caliper Brake Fluid Leak (Recall 15V278000) and Power Steering Assist Loss from Corroded Steering Gear Connection (Recall 16V054). The most commonly reported issue is Front Suspension Clunk and Stabilizer Bar End Link Failure with 510 owner reports. Across all issues with published estimates, repair costs range from $80 to $4,000. DIY maintenance guides at au7o.io.

In This Article

  • Canyon Safety/Recalls3
  • Canyon Engine3
  • Canyon Suspension2
  • Canyon Transmission1
  • Canyon Fuel System1
  • Canyon Cooling1
  • Canyon Brakes1
  • Canyon Steering1
  • Canyon Electrical3
  • Canyon Drivetrain1
  • Canyon Emissions1
  • Recalls8
  • FAQ
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In This Article

  • Safety/Recalls3
  • Engine3
  • Suspension2
  • Transmission1
  • Fuel System1
  • Cooling1
  • Brakes1
  • Steering1
  • Electrical3
  • Drivetrain1
  • Emissions1
  • Recalls8
  • FAQ

All 18 Known Issues

NHTSA Recalls8 recalls

SEATS:CRITICAL FASTENERS

General Motors, LLC (GM) is recalling certain 2022 GMC Canyon and Chevrolet Colorado vehicles equipped with a manual passenger seat. The front passenger seat may have a hook attachment that was not properly welded, allowing it to separate from the inboard track of the seat frame.

Campaign #22V37500026/05/2022

AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

General Motors, LLC (GM) is recalling certain 2024–2026 GMC Canyon AT4X AEV vehicles. Incorrect sensing and diagnostic module (SDM) software may cause a second stage passenger air bag deployment when only a first stage is intended. As such, these vehicles fail to conform to Federal Motor Vehicle Safety Standard (FMVSS) number 208, “Occupant Crash Protection."

Campaign #25V85600011/12/2025

EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

General Motors has decided that certain 2027 Chevrolet Bolt EV, 2025-2026 Cadillac OPTIQ, Chevrolet Colorado, Equinox EV, GMC Canyon, 2026 Buick Enclave, Envision, Cadillac CT5, Escalade, Escalade ESV, Escalade IQ, Escalade IQL, LYRIQ, VISTIQ, Chevrolet Blazer EV, Corvette Convertible, Corvette Coupe, Corvette Convertible E-Ray, Equinox, Silverado 1500, 2500, 3500, Silverado EV, Suburban 1500, Tahoe, Traverse, GMC Acadia, Hummer EV Pickup, Hummer EV SUV, Sierra 1500, 2500, 3500, Sierra EV, Terrain, Yukon, and Yukon XL vehicles. The radio may not have been set to the correct status to download the electronic owner's manual during production. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, “Occupant Protection.”

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Other GMC Models

GMC Sierra 150035GMC Terrain26GMC Yukon XL24GMC Sierra 3500HD24GMC Acadia22GMC Yukon21

Frequently Asked Questions

What are the most common GMC Canyon problems?

According to Au7o's analysis of 1,360+ owner reports, the 2015-2026 GMC Canyon has 18 documented issues. The most frequently reported are: 8L45 8-Speed Transmission Torque Converter Shudder, Driver Airbag Inflator Misalignment / SDM Reprogram (Recall 14690), Active Fuel Management (AFM) Lifter Failure (V6). Of these, 10 are rated critical and should be addressed promptly.

Is the GMC Canyon reliable?

The 2015-2026 GMC Canyon has 18 known issues documented across 1,360+ owner reports. 10 issues are rated critical: 8L45 8-Speed Transmission Torque Converter Shudder and Driver Airbag Inflator Misalignment / SDM Reprogram (Recall 14690) and Active Fuel Management (AFM) Lifter Failure (V6) and Front Camera Module False Object Detection Causing Unexpected Automatic Emergency Braking (Recall 24V133000) and Over-Tightened / Damaged Front Wheel Hub Bolts Allowing Wheel Hub Separation (Recall 24V237000) and Fuel Pump Lock Ring Not Fully Locked to Fuel Tank - Fuel Leak in a Crash (Recall 24V491000) and AT4X AEV Sensing and Diagnostic Module Miscalibration - Excessive-Force Passenger Airbag Deployment (Recall 25V856000) and Upper Radiator Hose Quick-Connect Seal Leak on 2.7L L3B - Coolant Loss, Overheating and P3075 and Front Brake Caliper Brake Fluid Leak (Recall 15V278000) and Power Steering Assist Loss from Corroded Steering Gear Connection (Recall 16V054). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common GMC Canyon problems?

Repair costs for known GMC Canyon issues range from $0 to $4,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, 8L45 8-Speed Transmission Torque Converter Shudder, typically costs $150-$4,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What year GMC Canyon is the most reliable?

Reliability varies across model years of the GMC Canyon. Based on documented issues, problems are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2015-2026 GMC Canyon with 18 documented issues documented across 1,360+ owner reports.

Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

Data sourced from 1,360+ owner reports, NHTSA recalls, TSBs, and automotive forums.

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NHTSA campaign 15V157 covers certain 2015 GMC Canyon vehicles. The driver-airbag inflator may be misaligned to the module backplate and can separate during deployment.

Common Symptoms

  • No reliable warning before an affected airbag deploys

How to Fix

Check the VIN with GMC. Dealers inspect the driver-airbag inflator alignment and replace the airbag as necessary free of charge under GM campaign 15037.

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Manually Verified
High ConfidenceVerifiedReviewed Aug 2026

On 2023 GMC Canyon trucks (3rd generation), the forward collision avoidance system's front camera module can falsely detect an obstacle that is not present and command an unexpected automatic emergency braking event while driving. GM recalled the vehicles under NHTSA campaign 24V133000 (Electrical System / Forward Collision Avoidance). An unexpected hard brake application at speed, particularly with traffic following, increases crash risk. This is a launch-year software calibration defect on the new-architecture ADAS camera introduced with the 2023 redesign, and it is separate from the later headlight and seat-belt campaigns already documented for this truck.

Common Symptoms

  • Sudden unexpected hard braking with no obstacle present
  • Forward collision alert chime and red windshield projection with clear road ahead
  • Brake pedal pulses / vehicle lurches at highway speed
  • Driver assistance warning messages in the driver information center

How to Fix

Free recall remedy: dealers reprogram/update the front camera module software under NHTSA recall 24V133000. No hardware replacement is required. Owners should check their VIN on NHTSA's recall lookup; if the truck has already had the update it will show as complete. If phantom braking persists after the reflash, have the dealer inspect windshield-mounted camera aim and calibration (a windshield replacement without recalibration produces the same symptom).

Find a nearby GMC dealer in Google Maps ↗

Call to confirm they can assess your vehicle and perform the stated work. Search results do not confirm qualification, eligibility or coverage.

Typical repair cost:$0 - $0

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Community Reported
High ConfidenceVerifiedReviewed Aug 2026

Approximately 1,120 GMC Canyon AT4X AEV Edition trucks (RPO XEV) built from roughly August 2023 through October 2025 were recalled because the Sensing and Diagnostic Module (SDM) carries an incorrect crash calibration. In certain crash events the second-stage passenger frontal airbag inflator can fire when only the lower-force first stage was intended, deploying the passenger airbag with excessive force and increasing occupant injury risk. NHTSA campaign 25V856000, GM number N252533510. The AEV package's unique suspension, tires and ride height changed the crash-sensing signature, and the AT4X AEV-specific calibration was wrong - this affects ONLY the AT4X AEV trim, not standard Canyon, Elevation, AT4 or Denali.

Common Symptoms

  • No driveability symptom - defect is latent until a crash occurs
  • Airbag warning lamp is normally OFF, so the condition is not owner-detectable

How to Fix

Free recall remedy: dealers reprogram the Sensing and Diagnostic Module with corrected software at no charge under recall 25V856000 / GM N252533510. GM corrected the calibration on the assembly line beginning November 5, 2025; owner notification letters were scheduled for January 26, 2026. This is software only - no airbag or module hardware is replaced.

Typical repair cost:$0 - $0

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Community Reported
High ConfidenceVerifiedReviewed Aug 2026

The 3.6L V6 with Active Fuel Management experiences lifter failure where the AFM lifters collapse, causing misfires and a ticking noise. The collapsing lifter can damage the camshaft lobe if not addressed.

This issue also affects: Buick LeSabre, Buick Park Avenue, Buick Cascada

Common Symptoms

  • Ticking or tapping from engine
  • Misfire on specific cylinders
  • Check engine light
  • Rough idle

How to Fix

Replace failed lifters and inspect camshaft for damage. AFM delete kits are available that disable cylinder deactivation and replace all AFM lifters with standard lifters. Requires ECM tune to disable AFM.

Typical repair cost:$800 - $2,500

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Community Reported
Medium Confidence
Community reported
390 owners

The 2016+ Canyon Duramax 2.8L LWN diesel uses DEF (Diesel Exhaust Fluid) injection and a DPF (Diesel Particulate Filter) as part of its SCR emissions system. Owners frequently report DEF quality/level sensor faults, DPF regeneration failures in stop-and-go use, DEF pump failures, and NOx sensor faults. Trucks used primarily for short trips often cannot complete DPF regeneration cycles, leading to DPF plugging and the truck going into reduced power mode. GM issued multiple TSBs on DEF sensor calibration and DPF regen procedures.

This issue also affects: Chevrolet Cruze, Chevrolet Silverado 2500HD, Chevrolet Silverado 3500HD

Common Symptoms

  • Check engine light with DEF quality codes (P204F, P2BAD, P20EE)
  • Reduced Engine Power message
  • DIC message: DEF Quality Poor - see dealer
  • Rough idle or loss of power (plugged DPF)
  • Regeneration warning lamp
  • Exhaust smoke during forced DPF regen cycle
  • Speed limiter engaging below 5 mph when DEF is empty

How to Fix

For DPF regeneration issues: take a 20+ minute highway drive at 55+ mph weekly to allow forced regen. For DEF sensor codes: replace DEF quality sensor (GM 84006963). For plugged DPF: forced stationary regeneration at dealer. Keep DEF tank above 1/4 to avoid speed limiter activation. Use only API certified BlueDEF or equivalent.

Typical repair cost:$200 - $3,500

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Based on 390 owner reports

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Community Reported
High Confidence390 owner reportsLast reported by owners Feb 2026Reviewed Feb 2026

The 3.6L V6 lacks a serviceable PCV valve and instead uses a fixed PCV orifice and drain-back baffle molded into a valve cover. The orifice and baffle drain hole sludge up and clog, pulling oil into the intake and causing excessive oil consumption (owners report ~1 qt per 1,000 miles). Severe cases foul spark plugs and contaminate the catalytic converters.

Common Symptoms

  • Low oil level / adding oil between changes
  • Blue smoke from exhaust on startup or acceleration
  • Oily residue pooling in the intake resonator/manifold
  • Fouled spark plugs

How to Fix

Verify consumption with GM's oil consumption test. Clean the clogged PCV orifice/baffle drain or replace the affected valve cover with the redesigned part; address underlying blow-by if present. Keep oil changes on schedule and monitor level between services.

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Community Reported
Medium ConfidenceVerifiedReviewed Jun 2026

Certain 2023 GMC Canyon trucks left the plant with front wheel hub bolts that were over-torqued during assembly. Over-tightening damages (stretches) the bolts, and a damaged bolt can fracture in service. If enough bolts fail, the front wheel hub assembly can loosen or separate from the steering knuckle, causing loss of vehicle control. GM issued NHTSA recall 24V237000 covering the wheels/hub bolts on the 2023 Canyon. This is a first-model-year build-quality defect of the redesigned truck and is not the same as the previously documented stabilizer-bar-link or steering-gear-connection issues.

Common Symptoms

  • Clunking or knocking from the front wheel area
  • Grinding or growling noise that changes with steering input
  • Wheel wobble or vibration felt in the steering wheel
  • Loose or vague front end / abnormal steering feel

How to Fix

Free recall remedy: dealers replace both the left and right front wheel hub bolts with new correctly-torqued fasteners under recall 24V237000, at no charge. Do not simply re-torque an existing bolt - a stretched bolt must be replaced. Any owner hearing a growl, clunk or feeling front-end looseness on an unremedied 2023 truck should stop driving it and have it inspected.

Typical repair cost:$0 - $0

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Community Reported
Low ConfidenceVerifiedReviewed Aug 2026
Community reported
510 owners

The 2015+ Canyon experiences front end clunking and rattling over bumps and during steering inputs. The most common cause is worn front stabilizer bar end links, though lower control arm ball joints and upper strut mounts also contribute. The end links use a ball-and-socket design that wears quickly on trucks used off-road or in harsh winter road conditions. GM issued TSB PIT5488 for front end noise diagnosis on the Canyon/Colorado platform. The issue is shared with the Chevrolet Colorado, which shares the identical GMSV platform.

This issue also affects: Chevrolet Colorado

Common Symptoms

  • Clunking noise from front suspension over bumps
  • Rattling at low speed over rough surfaces
  • Clunk when turning steering wheel at parking lot speeds
  • Front end noise when rocking the truck side to side
  • Visible play in end link ball joints

How to Fix

Replace front stabilizer bar end links (Moog K750744, or OEM GM 23377014). Inspect and replace ball joints if play detected (Moog K500119 lower ball joint). Upper strut mount replacement if clunk is isolated to strut area (GM 84131517). Torque all suspension fasteners to spec — loose bolts cause clunking symptoms.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Suspension Stabilizer Bar Link
    Cross-refK700902

    Fitment confirmed against the ShowMeTheParts catalog for this vehicle's year and engine.

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Typical repair cost:$80 - $800

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Based on 510 owner reports

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Community Reported
High Confidence510 owner reportsLast reported by owners Feb 2026Reviewed Feb 2026
Community reported
460 owners

The 2015+ Canyon with the 3.6L V6 uses the GM 8L45 8-speed automatic (smaller sibling of the 8L90 in full-size trucks) which suffers the same torque converter lock-up clutch shudder at light throttle between 25-50 mph. The clutch friction material degrades and contaminates the fluid. GM issued TSB 18-NA-355 and Customer Satisfaction Program 18302 extending coverage to 6 years/100,000 miles. The fix and fluid are identical to the Sierra 1500 8L90 procedure — Mobil 1 Synthetic LV ATF HP (GM 19417577). This is the same issue affecting the Chevrolet Colorado V6.

This issue also affects: Chevrolet Colorado, Chevrolet Camaro, GMC Sierra 1500

Common Symptoms

  • Shudder or vibration at light throttle 25-50 mph
  • Rumble strip sensation at highway cruising
  • Harsh 1-2 shift from stop
  • Transmission hunting between 7th and 8th gear
  • Shudder disappears when throttle is increased

How to Fix

Full fluid exchange with Mobil 1 Synthetic LV ATF HP (GM 19417577 / Mobil 124715). Check CSP 18302 coverage. Torque converter replacement (GM 24288818 for 8L45) if fluid exchange fails. Full exchange requires 10-12 quarts for the 8L45.

Typical repair cost:$150 - $4,000

Research This Issue

Based on 460 owner reports

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Community Reported
High Confidence460 owner reportsLast reported by owners Feb 2026Reviewed Feb 2026

GM recalled certain 2024 GMC Canyon and platform-twin Chevrolet Colorado trucks because the lock ring that secures the fuel pump module to the top of the fuel tank may not have been fully rotated into its locked position during assembly. An incompletely locked ring can allow the fuel pump module to unseat and leak fuel during a crash; fuel in the presence of an ignition source raises the risk of fire. NHTSA campaign 24V491000, GM number N242451330. Owner notification letters were mailed August 13, 2024.

Common Symptoms

  • Fuel odor near the rear of the vehicle
  • Visible fuel seepage at the top of the fuel tank
  • Fuel gauge or fuel level sender erratic behavior
  • No symptom at all in many vehicles - the defect is only exposed in a crash

How to Fix

Free recall remedy: dealers inspect the fuel tank lock ring and fully lock it as necessary at no charge under recall 24V491000 / GM N242451330. There is no hardware replacement unless inspection shows damage. Owners can verify remedy status by VIN through NHTSA's recall lookup or GMC customer service. A fuel smell around the rear of the truck on an unremedied vehicle should be treated as urgent.

Typical repair cost:$0 - $0

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Community Reported
High ConfidenceVerifiedReviewed Aug 2026

2023-2026 GMC Canyon trucks with the L3B 2.7L turbocharged four-cylinder use plastic quick-connect fittings at the radiator hose ends. The seal at the upper radiator hose quick connector can fail relatively early in service, allowing a slow coolant leak. Low coolant leads to elevated running temperature, reduced engine performance or limp mode, and in a neglected case sudden shutdown and engine damage. GM issued Service Bulletin PIT6494A in March 2026 addressing upper radiator hose quick-connect seal failure on the Colorado and Canyon, but the bulletin only applies while the truck is inside the 3-year/36,000-mile bumper-to-bumper warranty. A class action (Dixon v. GM, filed 2026) alleges the defect - the named plaintiff's truck logged DTC P3075 with low coolant from a leak at the quick-connect end of the upper radiator hose at about 44,400 miles and was charged $489.36 out of pocket. The same connector family is alleged on the 2.5L LK0 Traverse/Acadia/Enclave, but on the Canyon the affected engine is the 2.7L L3B.

This issue also affects: Buick Encore GX, Chevrolet Traverse

Common Symptoms

  • Low coolant warning message
  • Visible coolant seepage or crust at the upper radiator hose connector
  • Coolant smell after shutdown / puddle under the front of the truck
  • Rising coolant temperature or overheat warning
  • Reduced engine power / limp mode

How to Fix

Have the dealer perform the repair in Service Bulletin PIT6494A - replace the upper radiator hose assembly with the revised quick-connect/seal, pressure test the cooling system and refill with DEX-COOL. It is covered free under the 3/36,000 bumper-to-bumper warranty; outside that window owners have generally been charged roughly $250-550. There is no safety recall for this - do not wait for one. Check the coolant surge tank level monthly on these trucks; a low-coolant message or a sweet smell after shutdown should be diagnosed immediately, because continued driving on low coolant is what converts a $400 hose into an engine repair.

Find a nearby GMC dealer in Google Maps ↗

Call to confirm they can assess your vehicle and perform the stated work. Search results do not confirm qualification, eligibility or coverage.

Typical repair cost:$250 - $550

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Community Reported
Medium ConfidenceVerifiedReviewed Aug 2026

NHTSA campaign 15V278 covers certain 2015 GMC Canyon trucks. Air pockets in the metal caliper body can allow the front brake calipers to leak fluid and reduce braking ability.

Common Symptoms

  • Possible front brake-fluid leak
  • Reduced braking ability

How to Fix

Check the VIN with GMC. Dealers inspect and replace the front brake calipers as necessary free of charge under GM campaign 14888.

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Manually Verified
High ConfidenceVerifiedReviewed Aug 2026

NHTSA campaign 21V213 covers certain 2015 GMC Canyon vehicles. A poor electrical connection within the steering-gear assembly can cause a loss of power-steering assist.

Common Symptoms

  • Power-steering assist may be lost
  • Steering effort may increase

How to Fix

Check the VIN with GMC. Dealers replace the steering-gear torque-sensor cover assembly free of charge under GM campaign N202325410.

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Manually Verified
High ConfidenceVerifiedReviewed Aug 2026

NHTSA campaign 24V673 covers certain 2024 GMC Canyon vehicles. The headlights can flicker while driving or while parked, causing the trucks to fail federal lighting requirements.

Common Symptoms

  • Headlights may flicker while driving or parked

How to Fix

Check the VIN with GMC. Dealers replace the affected headlight module free of charge under GM campaign N242468880.

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Manually Verified
High ConfidenceVerifiedReviewed Aug 2026

3rd-generation GMC Canyon trucks (2023-2024 especially) suffer repeated dead-battery / no-crank events traced to two distinct electrical-architecture faults. First, an Over-The-Air software update that begins but fails to complete can leave modules awake and drain the battery flat. Second, GM has directed technicians to check for excessive parasitic draw from the radio module - the radio can remain powered for up to about 11 minutes after Retained Accessory Power should have cancelled - and separately for a Vehicle Communications Unit (VCU) that does not power down. GM addressed these in Service Bulletin PIT6232 (2024 Canyon), bulletin 24-NA-136 (radio parasitic draw) and 24-NA-228 (VCU not powering off). Owners on ColoradoFans report the problem persisting into 2024 build trucks, often on vehicles that sit for a few days.

Common Symptoms

  • Dead battery / no crank after the truck sits 2-5 days
  • Repeated jump starts needed
  • Radio or screen stays on well after the doors are locked
  • Multiple unrelated warning messages on startup after a jump
  • Battery saver active message

How to Fix

Diagnosis order matters. Have the dealer (1) verify no OTA update is stuck pending - check the Vehicle Updates menu, ensure at least 70 percent battery state of charge and a strong cellular signal, and let the update complete; (2) measure parasitic draw after the modules go to sleep and apply bulletin 24-NA-136 if the radio is the offender; (3) apply 24-NA-228 if the VCU fails to power down. Software updates are the primary remedy and are covered under the bumper-to-bumper warranty. A battery repeatedly run flat is permanently damaged - insist it be load-tested and replaced with the repair, or the no-crank returns even after the software fix.

What you need to diagnose it

The fix here starts with a test, not a part — which repair you need depends on what the test finds.

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Testing and isolating the fault is DIY work. Replacing or reprogramming a control module is not — most are VIN-programmed, so a new one does nothing until a shop codes it to your car. Check for an open recall or service bulletin before buying anything.

Find a nearby GMC dealer in Google Maps ↗

Call to confirm they can assess your vehicle and perform the stated work. Search results do not confirm qualification, eligibility or coverage.

Typical repair cost:$0 - $400

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Community Reported
Medium ConfidenceVerifiedReviewed Aug 2026

Certain 2026 GMC Canyon trucks were built with the radio not set to the correct status to automatically download the electronic owner's manual during production. Because the 3rd-generation Canyon ships the owner's manual electronically through the infotainment system rather than as a printed book, an affected truck leaves the owner without the safety and operating information the vehicle is required to provide, including airbag, child-restraint and tire-loading instructions. GM issued NHTSA recall 26V114000 for the condition. It is administrative rather than mechanical, but it is a genuine open safety recall on the nameplate and appears on VIN lookups.

Common Symptoms

  • Owner's manual missing or unavailable in the infotainment menu
  • Owner manual download never completes
  • No printed manual in the glovebox and no digital copy on the screen

How to Fix

Free recall remedy: dealers reset the vehicle radio so the electronic owner's manual downloads automatically, at no charge, under NHTSA recall 26V114000. No parts are involved. Owners can also read the manual for their VIN through GMC's owner website in the meantime.

Typical repair cost:$0 - $0

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Community Reported
High ConfidenceVerifiedReviewed Aug 2026

The 2023 redesign moved the Canyon and Colorado to a new rear axle from a different supplier than the previous generation, and early-build trucks developed a moaning, howling or groaning noise from the rear end, sometimes accompanied by a driveline clunk on the Drive-to-Reverse shift. GM addressed it with Service Bulletin 23-NA-208 (originally released November 2023). The bulletin has technicians look past the differential carrier bearings: if the carrier bearings are not the source, the axle shafts are pulled and inspected, and where chatter marks are found on the axle shaft the seal, the bearing and the axle shaft are all replaced. Important for this generation - because the axle hardware changed in 2023, the older Colorado/Canyon rear-axle TSBs and their fixes do NOT apply to these trucks.

Common Symptoms

  • Moaning, howling or groaning noise from the rear of the truck at steady speed
  • Noise that varies with vehicle speed rather than engine speed
  • Clunk when shifting from Drive to Reverse
  • Whine on deceleration / coast down

How to Fix

Have the dealer diagnose per GM bulletin 23-NA-208 rather than accepting a fluid change as the fix. The documented repair path is: inspect the differential carrier bearings, then remove the axle shafts and inspect for chatter marks; where present, replace the axle shaft along with its bearing and seal. Repair is covered under the 3-year/36,000-mile bumper-to-bumper and the 5-year/60,000-mile powertrain warranty. A separate driveline clunk on the Drive-to-Reverse shift can indicate excessive gear backlash or a G80 automatic locker concern and should be measured, not dismissed as normal.

Find a nearby GMC dealer in Google Maps ↗

Call to confirm they can assess your vehicle and perform the stated work. Search results do not confirm qualification, eligibility or coverage.

Typical repair cost:$0 - $1,400

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Community Reported
Medium ConfidenceVerifiedReviewed Aug 2026

On the 3.6L V6 (LGZ) Canyon, the catalytic converters lose efficiency and trigger P0420 (Bank 1) and/or P0430 (Bank 2), often a downstream consequence of the engine's PCV-related oil consumption that contaminates the converter substrate and O2 sensors. Both converters can fail around similar mileage since they age under identical conditions.

This issue also affects: Chevrolet Cruze, Chevrolet Equinox, Chevrolet Silverado 2500HD

Common Symptoms

  • Check engine light with P0420 and/or P0430
  • Reduced fuel economy
  • Failed emissions/smog test
  • Sulfur/rotten-egg exhaust smell

How to Fix

Diagnose before replacing: rule out a faulty downstream O2 sensor or exhaust leak, and correct any oil-consumption root cause (PCV orifice/valve cover) first so the new converter is not re-poisoned. Replace the affected catalytic converter(s) once root cause is addressed.

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Community Reported
Medium ConfidenceVerifiedReviewed Jun 2026
Campaign #26V11400026/02/2026

FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY

General Motors, LLC (GM) is recalling certain 2024 Chevrolet Colorado and GMC Canyon vehicles. The lock ring that secures the fuel pump to the fuel tank assembly may not have been fully locked during assembly, which can result in a fuel leak during a crash.

Campaign #24V49100028/06/2024

EXTERIOR LIGHTING:HEADLIGHTS

General Motors, LLC (GM) is recalling certain 2024 GMC Canyon vehicles. The headlights may flicker while driving and while the vehicle is in park. As such, these vehicles fail to comply with the requirements of Federal Motor Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."

Campaign #24V67300012/09/2024

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What is the 2015-2025 GMC Canyon 8L45 8-Speed Transmission Torque Converter Shudder?

The 2015+ Canyon with the 3.6L V6 uses the GM 8L45 8-speed automatic (smaller sibling of the 8L90 in full-size trucks) which suffers the same torque converter lock-up clutch shudder at light throttle between 25-50 mph. The clutch friction material degrades and contaminates the fl… Repairs typically run $150-$4,000. Severity: high.

What is the 2015 GMC Canyon Driver Airbag Inflator Misalignment / SDM Reprogram (Recall 14690)?

NHTSA campaign 15V157 covers certain 2015 GMC Canyon vehicles. The driver-airbag inflator may be misaligned to the module backplate and can separate during deployment. Severity: high.

What is the 2015-2025 GMC Canyon Active Fuel Management (AFM) Lifter Failure (V6)?

The 3.6L V6 with Active Fuel Management experiences lifter failure where the AFM lifters collapse, causing misfires and a ticking noise. The collapsing lifter can damage the camshaft lobe if not addressed. Repairs typically run $800-$2,500. Severity: high.

What is the 2023 GMC Canyon Front Camera Module False Object Detection Causing Unexpected Automatic Emergency Braking (Recall 24V133000)?

On 2023 GMC Canyon trucks (3rd generation), the forward collision avoidance system's front camera module can falsely detect an obstacle that is not present and command an unexpected automatic emergency braking event while driving. GM recalled the vehicles under NHTSA campaign 24V… Repairs typically run $0-$0. Severity: high.

What is the 2023 GMC Canyon Over-Tightened / Damaged Front Wheel Hub Bolts Allowing Wheel Hub Separation (Recall 24V237000)?

Certain 2023 GMC Canyon trucks left the plant with front wheel hub bolts that were over-torqued during assembly. Over-tightening damages (stretches) the bolts, and a damaged bolt can fracture in service. If enough bolts fail, the front wheel hub assembly can loosen or separate fr… Repairs typically run $0-$0. Severity: high.

What is the 2024 GMC Canyon Fuel Pump Lock Ring Not Fully Locked to Fuel Tank - Fuel Leak in a Crash (Recall 24V491000)?

GM recalled certain 2024 GMC Canyon and platform-twin Chevrolet Colorado trucks because the lock ring that secures the fuel pump module to the top of the fuel tank may not have been fully rotated into its locked position during assembly. An incompletely locked ring can allow the… Repairs typically run $0-$0. Severity: high.

What is the 2024-2026 GMC Canyon AT4X AEV Sensing and Diagnostic Module Miscalibration - Excessive-Force Passenger Airbag Deployment (Recall 25V856000)?

Approximately 1,120 GMC Canyon AT4X AEV Edition trucks (RPO XEV) built from roughly August 2023 through October 2025 were recalled because the Sensing and Diagnostic Module (SDM) carries an incorrect crash calibration. In certain crash events the second-stage passenger frontal ai… Repairs typically run $0-$0. Severity: high.

What is the 2023-2026 GMC Canyon Upper Radiator Hose Quick-Connect Seal Leak on 2.7L L3B - Coolant Loss, Overheating and P3075?

2023-2026 GMC Canyon trucks with the L3B 2.7L turbocharged four-cylinder use plastic quick-connect fittings at the radiator hose ends. The seal at the upper radiator hose quick connector can fail relatively early in service, allowing a slow coolant leak. Low coolant leads to elev… Repairs typically run $250-$550. Severity: high.

What is the 2015 GMC Canyon Front Brake Caliper Brake Fluid Leak (Recall 15V278000)?

NHTSA campaign 15V278 covers certain 2015 GMC Canyon trucks. Air pockets in the metal caliper body can allow the front brake calipers to leak fluid and reduce braking ability. Severity: high.

What is the 2015 GMC Canyon Power Steering Assist Loss from Corroded Steering Gear Connection (Recall 16V054)?

NHTSA campaign 21V213 covers certain 2015 GMC Canyon vehicles. A poor electrical connection within the steering-gear assembly can cause a loss of power-steering assist. Severity: high.

What is the 2016-2025 GMC Canyon 2.8L Duramax DEF System Faults and DPF Regeneration Issues?

The 2016+ Canyon Duramax 2.8L LWN diesel uses DEF (Diesel Exhaust Fluid) injection and a DPF (Diesel Particulate Filter) as part of its SCR emissions system. Owners frequently report DEF quality/level sensor faults, DPF regeneration failures in stop-and-go use, DEF pump failures,… Repairs typically run $200-$3,500. Severity: medium.

What is the 2023-2024 GMC Canyon 2024 Headlight Flicker (24V673) and 2023-2024 Seat Belt Buckle Bolt Recalls (2nd-Gen Canyon)?

NHTSA campaign 24V673 covers certain 2024 GMC Canyon vehicles. The headlights can flicker while driving or while parked, causing the trucks to fail federal lighting requirements. Severity: medium.

What is the 2023-2024 GMC Canyon Rear Axle Moan, Howl or Groan from Carrier Bearing and Axle Shaft Chatter (Bulletin 23-NA-208)?

The 2023 redesign moved the Canyon and Colorado to a new rear axle from a different supplier than the previous generation, and early-build trucks developed a moaning, howling or groaning noise from the rear end, sometimes accompanied by a driveline clunk on the Drive-to-Reverse s… Repairs typically run $0-$1,400. Severity: medium.

What is the 2023-2025 GMC Canyon Parasitic Battery Drain from Failed OTA Update and Radio/VCU Not Powering Down - No Crank?

3rd-generation GMC Canyon trucks (2023-2024 especially) suffer repeated dead-battery / no-crank events traced to two distinct electrical-architecture faults. First, an Over-The-Air software update that begins but fails to complete can leave modules awake and drain the battery fla… Repairs typically run $0-$400. Severity: medium.

What is the 2015-2022 GMC Canyon 3.6L V6 (LGZ) Excessive Oil Consumption from Clogged PCV Orifice?

The 3.6L V6 lacks a serviceable PCV valve and instead uses a fixed PCV orifice and drain-back baffle molded into a valve cover. The orifice and baffle drain hole sludge up and clog, pulling oil into the intake and causing excessive oil consumption (owners report ~1 qt per 1,000 m… Severity: medium.

What is the 2015-2022 GMC Canyon P0420/P0430 Catalytic Converter Efficiency Failure (3.6L V6)?

On the 3.6L V6 (LGZ) Canyon, the catalytic converters lose efficiency and trigger P0420 (Bank 1) and/or P0430 (Bank 2), often a downstream consequence of the engine's PCV-related oil consumption that contaminates the converter substrate and O2 sensors. Both converters can fail ar… Severity: medium.

What is the 2015-2025 GMC Canyon Front Suspension Clunk and Stabilizer Bar End Link Failure?

The 2015+ Canyon experiences front end clunking and rattling over bumps and during steering inputs. The most common cause is worn front stabilizer bar end links, though lower control arm ball joints and upper strut mounts also contribute. The end links use a ball-and-socket desig… Repairs typically run $80-$800. Severity: low.

What is the 2026 GMC Canyon Radio Not Configured to Download the Electronic Owner's Manual (Recall 26V114000) - FMVSS Documentation Noncompliance?

Certain 2026 GMC Canyon trucks were built with the radio not set to the correct status to automatically download the electronic owner's manual during production. Because the 3rd-generation Canyon ships the owner's manual electronically through the infotainment system rather than… Repairs typically run $0-$0. Severity: low.