2019 GMC Acadia Problems: 7 Known Issues
2019 model year · 560+ owner reports · Updated October 2026
According to Au7o's analysis of 560+ owner reports, the 2019 GMC Acadia has 7 documented known issues, with 3 rated critical. The most serious are 3.6L V6 Internal Water Pump Failure and Coolant Leak, Start/Stop Transmission Accumulator Missing Bolts - Fluid Leak, Loss of Propulsion and Fire Risk (Recall 20V668 / N202313440) and Continental Tires Cured Too Long — Sidewall Break or Tread Loss (Recall 21V115000). The most commonly reported issue is 9T65 9-Speed Transmission Harsh Shifts and Hesitation with 560 owner reports. Across all issues with published estimates, repair costs range from $120 to $3,500. DIY maintenance guides at au7o.io.
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All 7 Known Issues
NHTSA Recalls9 recalls
AIR BAGS
General Motors, LLC. (GM) is recalling certain 2022 GMC Acadia vehicles. The sensing diagnostic module (SDM) may have been left in "manufacturing mode" and not activated at the assembly plant prior to shipment. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
SUSPENSION:REAR
General Motors, LLC (GM) is recalling certain 2022 Cadillac XT5, XT6, and GMC Acadia vehicles. The left-rear suspension toe link may have been tightened improperly, which could result in a loose or separated toe link.
FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
General Motors, LLC (GM) is recalling certain 2022 Cadillac XT5, XT6, and GMC Acadia All-Wheel Drive (AWD) vehicles. The fuel tank rollover valve may not provide a proper seal in the event of a rollover crash.
EQUIPMENT:OTHER:LABELS
General Motors, LLC (GM) is recalling certain 2023 Cadillac XT5, XT6, and GMC Acadia vehicles. The certification label located on the driver's side B-pillar contains tire size information that may be illegible. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 110, "Tire Selection and Rims."
POWER TRAIN:DRIVELINE:DRIVESHAFT
General Motors, LLC (GM) is recalling certain 2023 Cadillac XT5 and GMC Acadia vehicles. The right-front half-shaft assemblies may be improperly connected to the transmission, causing them to separate.
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Frequently Asked Questions
What are the most common GMC Acadia problems?
According to Au7o's analysis of 560+ owner reports, the 2019 GMC Acadia has 7 documented issues. The most frequently reported are: 3.6L V6 Internal Water Pump Failure and Coolant Leak, Start/Stop Transmission Accumulator Missing Bolts - Fluid Leak, Loss of Propulsion and Fire Risk (Recall 20V668 / N202313440), Continental Tires Cured Too Long — Sidewall Break or Tread Loss (Recall 21V115000). Of these, 3 are rated critical and should be addressed promptly.
Is the GMC Acadia reliable?
The 2019 GMC Acadia has 7 known issues documented across 560+ owner reports. 3 issues are rated critical: 3.6L V6 Internal Water Pump Failure and Coolant Leak and Start/Stop Transmission Accumulator Missing Bolts - Fluid Leak, Loss of Propulsion and Fire Risk (Recall 20V668 / N202313440) and Continental Tires Cured Too Long — Sidewall Break or Tread Loss (Recall 21V115000). 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 Acadia problems?
Repair costs for known GMC Acadia issues range from $0 to $3,500, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2007-2023 GMC Acadia 3.6L V6 Internal Water Pump Failure and Coolant Leak?
GM customer-satisfaction bulletin 13079 covers certain 2009-2013 GMC Acadia vehicles with 3.6L High Feature V6 engines (RPO LY7 or LLT) that may experience leakage from the water-pump shaft seal, often after operation with low coolant. Severity: high.
What is the 2019-2020 GMC Acadia Start/Stop Transmission Accumulator Missing Bolts - Fluid Leak, Loss of Propulsion and Fire Risk (Recall 20V668 / N202313440)?
NHTSA campaign 20V668 covers certain 2019-2020 GMC Acadia vehicles. The start/stop transmission-accumulator endcap may be missing bolts, which can cause an oil leak and loss of transmission function and may increase fire risk. Severity: high.
What is the 2019-2020 GMC Acadia Continental Tires Cured Too Long — Sidewall Break or Tread Loss (Recall 21V115000)?
GMC Acadias from the 2019 and 2020 model years are among the vehicles GM recalled over Continental tires that were cured for too long when they were manufactured. The defect is in the tire itself rather than anything on the Acadia. An over-cured tire can develop a break in the si… Severity: high.
What is the 2017-2025 GMC Acadia 9T65 9-Speed Transmission Harsh Shifts and Hesitation?
The second-generation Acadia (2017+) uses the GM 9T65 9-speed automatic transmission which shares known issues with the Chevrolet Traverse and Blazer. Common complaints include harsh 1-2 upshifts, hesitation between 5-15 mph, lurching on light throttle in stop-and-go traffic, and… Repairs typically run $0-$3,500. Severity: medium.
What is the 2017-2019 GMC Acadia "Shift to Park" Message With No-Shutdown / Door-Lock Lockout and Battery Drain?
GM bulletin 10251901 covers specified 2017-2019 GMC Acadia vehicles that can intermittently display a Shift-to-Park message even though the transmission selector is in Park. Severity: medium.
What is the 2017-2021 GMC Acadia Infotainment System Lockup, Black Screen and Random Reboots (2nd-Gen IO/IOR Head Unit)?
GM bulletin 22-NA-033 covers 2019 GMC Acadia vehicles equipped with IOS, IOU or IOT radios that can reset or reboot and display the GMC splash animation. Bluetooth-call or touch-input symptoms can occur immediately before the reboot. Severity: medium.
What is the 2007-2021 GMC Acadia HVAC Blend Door Actuator Gear Stripping — Clicking Dash and Cold Air on One Side Only?
The dual-zone HVAC case uses several small plastic-geared blend/mode door actuators. The gear teeth strip or the door binds, so the actuator hunts for its calibration position and produces a repetitive clicking or ticking from behind the dash or glovebox. The classic complaint is… Repairs typically run $120-$450. Severity: low.
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.