Home · 2019 GMC Acadia Denali · Complaints

What 374 owners told NHTSA about the 2019 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 (374)Crash / fire / injury (8)Transmission & drivetrain (150)Electrical system (103)Engine (47)Steering (30)Brakes (16)Lights (10)Driver assistance (6)Lane Departure (6)Engine & cooling (5)Suspension (5)

6 of 374 complaints match · Lane Departure · clear filters

Dec 29, 2025Lane Departure

My Temp control sensor is causing my check engine light to come on. After reviewing the problem, It seems many owners have had this same problem nation wide. I,m simply adding to the complaints by other owners that this should be a recall problem since so many owners are having this same problem. I,ve only had this car for 2 weeks & like the vehicle very much but this is a per the mechanic that may be caused by the sensor being placed too close to the exhaust without better protection from the heat. Please take this into consideration & hopefully come up with an adequate protective cover

NHTSA ODI 11707535

Jan 16, 2025Lane Departure

Driver side blind spot not longer works. When driving the blind spot indicator just stopped working a month ago and I didn't take notice until I almost hit another car. I contacted gmc about this issue as well and was also told there isn't any recall for this and it would have to be diagnosed by there mechanics. There were no other issues prior to this. Also the "shift to park" warning has been popping up for 3 days now when my car is in park. My car won't complete shut everything off until that warning is turned off. I called GMC of puyallup and was told only certain vin qualifies for the recall for the gmc 2019 acadia. That's absolutely ridiculous! I can't exit my vehicle until the car senor knows my vehicle is in park which is a major concern and safety issue because my home is on a slope.

NHTSA ODI 11636321

Dec 19, 2024Electrical systemEngineLane Departure

Code 0128 coolant temperature sensor failure triggered reduced lane departure assist

NHTSA ODI 11631676

Mar 28, 2024Lane DepartureBackup camera & sensorsCrash

Unnecessary safety feature sounds and alerts distract driver's normal driving and viewing habits. Any which could be turned off, have been. Every time the car is started, there is a message that these warnings have been turned off. The message never goes away and stays on the entire drive time unless manually turned off.] These type of messages need to turn off after a short delay.

NHTSA ODI 11579859

Oct 19, 2023SteeringElectrical systemLane Departure

Vehicle refuses to turn off due to "Shift to Park" error being displayed. Vehicle also gives "Driver assist unabled. Drive safely" message and AC will not cool and vehicle coolant gauges will not work.

NHTSA ODI 11550795

Nov 9, 2022SteeringLane Departure

Vehicle will have a message on the dash that says “drive with care steering assist is reduced”, the fans will come on and stay on, and the temperature hand will quit working along with air conditioner. It has not been inspected, I am not sure if the steering assist being reduced could cause any harm to myself or others.

NHTSA ODI 11492914

Working with the data? Download all 374 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 2019 GMC Acadia Denali verdict →