2021 GMC Acadia Vehicle speed control Problems
- Complaints
- 7about this part
- Share
- 5%of 155 total for the year
- Median mileage
- 15,146miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 7 complaints about the vehicle speed control of the 2021 GMC Acadia, 5% of the 155 complaints for this model year. Where a mileage was given, the median is 15,146 miles. 2 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The electronic dashboard goes black while driving. I was driving to work on the highway at highway speeds and the entire electronic dashboard went black including the hud display and the radio screen. The radio screen turned back on and auto reconnected to my phone and android auto. I was able to safely get to an exit and park, turn off the car and restart and the dash did come back on to then go black about 5 minutes later this time the hud stayed on and I was able to get to work where the car sat off for 8 hrs , when leaving work the dash stayed on. …”
NHTSA complaint #11709819, filed 2026-01“As I was stopped in line behind a car at the ATM, my foot slipped from the brake, I quickly placed it back only to find that I ended up going forward. I quickly moved my foot more to the left for the brake only to end up going forward even faster hitting the car in front of me. I then put my left foot firmly on the brake. Now with both feet on the brake the car is climbing up the car in front of me and not braking. Finally, I put it in park and cut the engine. The whole front end of my car is crushed. …”
NHTSA complaint #11481608, filed 2022-08“The contact owns a 2021 GMC Acadia. The contact stated while driving 50 MPH, the vehicle suddenly decelerated to 35 MPH. The vehicle stalled, and the Steering Assistance Reduced message was displayed. The vehicle was restarted. The vehicle was taken to the local dealer the following day, where it was diagnosed that the accelerator pedal and terminal connector were bent. The dealer retrieved DTC codes: P2138, and P2122. The vehicle was repaired. The manufacturer was notified of the failure. The approximate failure mileage was 27,792.”
NHTSA complaint #11616263, filed 2024-09, 27,792 miles“The contact owns a 2021 GMC Acadia. The contact stated that while his wife was reversing the vehicle, the accelerator pedal was stuck to the floorboard and the vehicle crashed into the garage wall. No medical attention was received. No police report was filed. The dealer was made aware of the failure and informed the contact to tow the vehicle to their location to diagnose the failure. The vehicle was awaiting a tow truck and had not been diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 2,500.”
NHTSA complaint #11427862, filed 2021-08, 2,500 milesRelated service bulletins
- 11014171Jan 31, 2025This service bulletin provides information on proper use of floor mats.
Vehicle speed control: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 3 | 4% |
| 2024 | 2 | 3% |
| 2023 | 2 | 4% |
| 2022 | 1 | 2% |
| 2021 | 7 | 5% |
| 2020 | 4 | 4% |
| 2019 | 3 | 1% |
| 2018 | 5 | 1% |
| 2017 | 9 | 1% |
| 2016 | 2 | 1% |
| 2015 | 7 | 3% |
| 2014 | 8 | 2% |
| 2013 | 6 | 4% |
| 2012 | 10 | 3% |
| 2011 | 13 | 5% |
| 2010 | 8 | 2% |
| 2009 | 11 | 3% |
| 2008 | 36 | 4% |
| 2007 | 19 | 4% |
Other parts of the 2021 GMC Acadia
39 complaintsEngine
30 complaintsFuel system
30 complaintsOther or unknown
22 complaintsBrakes
19 complaintsSteering
18 complaintsTransmission and drivetrain
17 complaintsAir bags
10 complaintsBack-over prevention (rear camera)
7 complaintsForward collision avoidance
7 complaintsLane departure
4 complaintsEngine cooling
3 complaints
← All problems reported for the 2021 GMC Acadia
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology