According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2023 Chevrolet Tahoe has 3 documented known issues, with 2 rated critical. The most serious are Trailer Brake Control Module Shuts Down from Trailer Battery Back-Feed ($0-$700 repair) and 6.2L L87 Rod-Bearing Engine Failure (Recall 25V-274) ($0-$10,000 repair). DIY maintenance guides at au7o.io.
On the 2023 Chevrolet Tahoe, on 2023 Tahoe models equipped with Integrated Trailer Brake Control, GM documented a distinct C1114 failure that has nothing to do with corroded wiring and everything to do with how the trailer's own battery interacts with the truck's electrical system. Service Bulletin 23-NA-149 describes the condition: when the customer's trailer carries its own battery that is kept topped up by a solar panel charger or a generator, that battery can become fully charged and end up at a higher state of charge than the Tahoe's own battery. Because the 7-way connector ties the two systems together, the higher-charge trailer battery back-feeds current into the trailer brake power control module and causes it to shut down. The result is a 'Check Trailer Wiring' message in the Driver Information Center, trailer brakes disabled, and DTC C1114 stored during diagnosis. GM notes the trigger points precisely: on internal-combustion vehicles it typically occurs during vehicle start-up or during a stop/start event; on EVs, when the vehicle is placed in propulsion. What makes this pattern maddening for owners is that it is intermittent and self-clearing — GM explicitly states the condition can persist until the vehicle's charging system brings the vehicle battery up to a higher state of charge, after which the message should go away and the trailer brakes work as normal. So the truck often arrives at the dealer with no active fault and a clean self-test. Owners of travel trailers, toy haulers, and off-grid or overland trailers with solar arrays report exactly this: brakes drop out shortly after a cold start or at a fuel stop, come back a few miles later, and repeat on the next trip. Because the trailer brakes are genuinely disabled while the fault is latched, this is a real safety exposure on grades and in panic stops, not merely a nuisance message. The same condition is documented across the platform — Suburban, Yukon, Escalade, Colorado, Canyon, Silverado 4500/5500 and the 2024 HD and EV trucks — with different service part numbers per family. The bulletin carries a production build-date breakpoint of January 21, 2024.
'Check Trailer Wiring' message in the Driver Information Center while towing
Trailer brakes disabled with no braking assist from the trailer
Fault appears at vehicle start-up or during a stop/start event
Message clears itself after driving as the vehicle battery charges
Only occurs with a trailer that has its own battery, solar charger, or generator
DTC C1114 found stored during diagnosis
How to Fix
Confirm the pattern before ordering parts, because the symptom overlaps with ordinary trailer wiring faults. Two clues point at this bulletin rather than a wiring problem: the trailer has its own battery with a solar charger or generator, and the message appears at start-up or during a stop/start event rather than while braking. As an interim field check, disconnect the trailer's battery charging source or the 12-volt auxiliary pin at the 7-way and see whether the fault stops recurring — if it does, the back-feed path is confirmed. Note that GM says the condition can also clear itself once the vehicle's charging system brings the vehicle battery to a higher state of charge, so a single self-clearing event does not rule the bulletin out. The corrective action GM specifies in 23-NA-149 is not a wiring repair: replace the trailer brake control module with the updated part. For Tahoe, Suburban, Escalade and Yukon the service part number is 84857588 (Silverado HD/Sierra HD, Colorado/Canyon, HUMMER EV and Silverado EV use 23306694; Silverado 4500/5500 uses 23337305). Labor operation 2210300, Trailer Brake Control Module Replacement, uses published labor time. On a 2023 Tahoe still inside the 3-year/36,000-mile bumper-to-bumper coverage this should be a no-charge warranty repair, so raise the bulletin number with the dealer by name rather than accepting a diagnostic charge for 'trailer wiring.' Out of warranty, budget roughly $250-$450 for the module plus $120-$250 in labor and programming; the replacement module is installed per the Trailer Brake Control Module Replacement procedure in SI, so this is not a straight plug-and-play swap for a home mechanic. Before authorizing module replacement on a trailer without its own battery, work GM's PIT5509-series diagnostic first — on those vehicles C1114 is far more likely to be a poor trailer ground or corroded 7-way connector, and a new module will not fix it.
On the 2021-2024 Chevrolet Tahoe 6.2L V8 (L87), l87 6.2L V8s built March 1, 2021 through May 31, 2024 can suffer sudden rod-bearing failure and engine seizure with loss of propulsion. GM attributes it to supplier manufacturing/quality issues — sediment/debris left on connecting rods and in crankshaft oil galleries plus out-of-spec dimensions — that starve and pound the rod bearings. NHTSA safety recall 25V-274 (April 2025) covers 44,802 Tahoes among ~600k GM full-size trucks/SUVs; GM logged over 14,000 field complaints and a dozen alleged crashes/injuries. NHTSA has since opened follow-up query RQ26001 into failures on engines outside the recall and on some units that failed after the dealer remedy.
Follow recall 25V-274: dealer inspects the engine and replaces it if it fails inspection; vehicles that pass receive higher-viscosity 0W-40 dexos oil, a new oil filter, and an updated oil-fill cap specifying the new viscosity. Owners hearing a knock, seeing low oil pressure, or getting loss-of-propulsion warnings should stop driving and contact a dealer. Out-of-warranty engine replacement absent recall coverage runs well into five figures — verify VIN eligibility with GM before paying.
On the 2021-2025 Chevrolet Tahoe, the 2021+ Tahoe uses the GM 10L80 10-speed with reports of harsh shifting, delayed engagement, and shift hunting between gears. GM has released multiple TCM calibration updates. The transmission requires DEXRON ULV fluid (NOT DEXRON HP). Most shift quality issues are resolved with the latest software calibration.
TCM recalibration at dealer with latest software. Full fluid exchange with ACDelco DEXRON ULV (19352619). Allow 500+ miles after reset for transmission to relearn driving patterns.
Medium ConfidenceLast reported by owners Feb 2026Reviewed Feb 2026
NHTSA Recalls21 recalls
EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE
General Motors, LLC (GM) is recalling certain 2020-2023 Cadillac CT4 and CT5; 2021-2023 Buick Envision; and 2022-2023 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles. The daytime running lights (DRLs) may not deactivate when the headlights are on. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Campaign #22V90300008/12/2022
SUSPENSION:REAR
General Motors, LLC (GM) is recalling certain 2023 Cadillac Escalade, Escalade ESV, Chevrolet Suburban, Chevrolet Tahoe, GMC Yukon, and Yukon XL vehicles. The rear suspension outer control arm bolts may not have been properly heat-treated, which can cause the bolts to break.
Campaign #23V64200020/09/2023
SERVICE BRAKES, HYDRAULIC:BRAKE FLUID LOW WARNING: LAMP
General Motors, LLC (GM) is recalling certain 2023 Chevrolet Silverado 1500, GMC Sierra 1500, 2023-2024 Chevrolet Tahoe, Suburban, GMC Yukon, Yukon XL, Cadillac Escalade, and Escalade ESV vehicles. The electronic brake control module software may fail to display a warning light when a loss of brake fluid occurs. As such, these vehicles fail to comply with the requirements of Federal Vehicle Safety Standard number 135, "Light Vehicle Brake Systems."
Campaign #24V67400012/09/2024
ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL
General Motors LLC (GM) is recalling certain 2021-2024 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles equipped with a 6.2L V8 gas engine. The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure.
Campaign #25V27400024/04/2025
FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
General Motors, LLC (GM) is recalling certain 2021 Cadillac Escalade, 2021, 2023-2024 Chevrolet Tahoe, and 2022 and 2024 GMC Yukon vehicles equipped with a 6-cylinder diesel engine. The original fuel tank may have been replaced with an incorrect fuel tank, which can allow fuel to leak in a rollover crash.
What are the most common Chevrolet Tahoe problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2023 Chevrolet Tahoe has 3 documented issues. The most frequently reported are: Trailer Brake Control Module Shuts Down from Trailer Battery Back-Feed, 6.2L L87 Rod-Bearing Engine Failure (Recall 25V-274), 10L80 10-Speed Transmission Harsh Shifting. Of these, 2 are rated critical and should be addressed promptly.
Is the Chevrolet Tahoe reliable?
The 2023 Chevrolet Tahoe has 3 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 2 issues are rated critical: Trailer Brake Control Module Shuts Down from Trailer Battery Back-Feed and 6.2L L87 Rod-Bearing Engine Failure (Recall 25V-274). 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 Chevrolet Tahoe problems?
Repair costs for known Chevrolet Tahoe issues range from $0 to $10,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Trailer Brake Control Module Shuts Down from Trailer Battery Back-Feed, typically costs $0-$700 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2023 Chevrolet Tahoe Trailer Brake Control Module Shuts Down from Trailer Battery Back-Feed?
On 2023 Tahoe models equipped with Integrated Trailer Brake Control, GM documented a distinct C1114 failure that has nothing to do with corroded wiring and everything to do with how the trailer's own battery interacts with the truck's electrical system. Service Bulletin 23-NA-149… Repairs typically run $0-$700. Severity: high.
What is the 2021-2024 Chevrolet Tahoe 6.2L L87 Rod-Bearing Engine Failure (Recall 25V-274)?
L87 6.2L V8s built March 1, 2021 through May 31, 2024 can suffer sudden rod-bearing failure and engine seizure with loss of propulsion. GM attributes it to supplier manufacturing/quality issues — sediment/debris left on connecting rods and in crankshaft oil galleries plus out-of-… Repairs typically run $0-$10,000. Severity: high.
What is the 2021-2025 Chevrolet Tahoe 10L80 10-Speed Transmission Harsh Shifting?
The 2021+ Tahoe uses the GM 10L80 10-speed with reports of harsh shifting, delayed engagement, and shift hunting between gears. GM has released multiple TCM calibration updates. The transmission requires DEXRON ULV fluid (NOT DEXRON HP). Most shift quality issues are resolved wit… Repairs typically run $0-$500. Severity: medium.
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.
