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What 47 owners told NHTSA about the 2022 GMC Acadia Denali

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (47)Crash / fire / injury (3)Electrical system (14)Engine (14)Fuel system (8)Lane Departure (4)Transmission & drivetrain (4)Brakes (3)Seat belts (3)Steering (3)Driver assistance (2)Airbags (1)

4 of 47 complaints match · Lane Departure · clear filters

Nov 24, 2025SteeringEngineLane Departure

The “Steering assist reduced” message came on and, when shut off, the fan blows very hard and loud.

NHTSA ODI 11701135

Oct 17, 2025EngineLane Departure

Electronic thermostat fails. Which causes steering assistance reduced drive with care to illuminate. Temperature gauge drops to cold. Air conditioning no longer operates.

NHTSA ODI 11694148

Sep 26, 2022Electrical systemLane Departure

Driver side blind spot monitor fails to detect vehicles. I first became aware of the problem as I was entering a freeway and nearly caused an accident. I scheduled service at my GMC dealership but had to wait two weeks for an appointment. The system stared working again just before the appointment and the dealer service department could not find a problem. My neighbor's 2021 GMC Acadia has the same issue. Does somebody have to die to correct a safety defect?

NHTSA ODI 11486422

Jun 3, 2022Speed controlLane Departure

The cruise control does not down-shift the vehicle early enough. it does not react for the first 6mph over set point and then when it downshifts it only downshifts one gear. The vehicle exceeded 10mph over set point on a 6% grade and brakes had to be engaged because manual limit did not perform as intended at the moment. This might have been ok in the 90s but all other cars I had handled this much better in last 15 years. The lane keep assist attempts to drive the car into oncoming traffic when there are road patches present in the lane.

NHTSA ODI 11467310

Working with the data? Download all 47 complaints as CSV · fetched from NHTSA July 25, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2022 GMC Acadia Denali verdict →