2019 GMC Terrain Vehicle speed control Problems
- Complaints
- 9about this part
- Share
- 5%of 187 total for the year
- Median mileage
- 4,697miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 9 complaints about the vehicle speed control of the 2019 GMC Terrain, 5% of the 187 complaints for this model year. Where a mileage was given, the median is 4,697 miles.
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.
“On july 4th, 2019 at 11:15 am, this vehicle (lane assist and adaptive cruise control operating) applied its brakes somewhat aggressively without reason. This was on a highway. I have blackvue cameras that recorded the event. 12:15:09 74 MPH 12:15:10 73 MPH 12:15:11 67 MPH 12:15:12 60 MPH 12:15:13 56 MPH I tapped the brakes to shut down the adaptive cruise control. 12:15:14 56 MPH 12:15:15 55 MPH”
NHTSA complaint #11229712, filed 2019-07, 1,400 miles“The shifter is dangerous. It allows you to inadvertently shift into neutral while driving. In a car with a normal shifter, the shifter needs to be pushed with significant force to move it into neutral and the resulting thunk will let you know it happened. In this car, since it is an electronic button that can be easily pressed, especially because it is in a location where it might get hit by an object like a purse. The driver may wind up without power and then not have an easy way to reingage drive. …”
NHTSA complaint #11149558, filed 2018-11, 3,000 miles“On august 23, 2019, my vehicle incurred an engine and transmission failure reported by Gmc onstar application. The symptoms of failure are repeated acceleration speed control causing speed limit violations, interference with other moving traffic, spousal trauma, and illumination of multiple display window lights in the dashboard behind steering wheel. On october 14, 2019, there was a reoccurrence of the same issue. In fact, this report is to get ahead of the problem before taking vehicle for service this morning, october 15, 2019, at sewell buick Gmc. …”
NHTSA complaint #11268428, filed 2019-10, 4,697 miles“Vehicle can be inadvertently by either a passenger or an object put into neutral. No alert or chime is made to alert the driver that the car is in neutral, only the gear selector on the dash or the light on the button indicates that it is in neutral. If something is covering the shifter, such as a bag or other item, it is possible that an acccident might occur becuase the bag or item may press the button, shift the vehicle into neutral cause the driver to be confused and not have power to maneuver the vehicle in an emergency situation. …”
NHTSA complaint #11120137, filed 2018-08, 636 miles“Friday July 25, 2025 I was driving my 2019 GMC Terrain SLE and when exiting the interstate the brake pedal got hard and I could not stop. After almost rear ending another vehicle, I got the vehicle into the ditch and safely off the road. After several attempts to correct the problem, I was unsuccessful. The vehicle was towed home and seen by a mechanic. The vacuum pump went out while I was driving.”
NHTSA complaint #11676573, filed 2025-07Related 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 |
|---|---|---|
| 2026 | 1 | 3% |
| 2025 | 1 | 8% |
| 2024 | 3 | 6% |
| 2023 | 2 | 5% |
| 2022 | 1 | 2% |
| 2021 | 1 | 3% |
| 2020 | 11 | 6% |
| 2019 | 9 | 5% |
| 2018 | 8 | 4% |
| 2017 | 2 | 1% |
| 2016 | 4 | 3% |
| 2015 | 3 | 1% |
| 2014 | 3 | 1% |
| 2013 | 5 | 1% |
| 2012 | 11 | 3% |
| 2011 | 18 | 5% |
| 2010 | 17 | 6% |
Other parts of the 2019 GMC Terrain
72 complaintsEngine
70 complaintsTransmission and drivetrain
53 complaintsElectrical system
39 complaintsOther or unknown
21 complaintsBack-over prevention (rear camera)
7 complaintsElectronic stability control
6 complaintsForward collision avoidance
6 complaintsExterior lighting
5 complaintsFuel system
4 complaintsSteering
4 complaintsSuspension
3 complaints
← All problems reported for the 2019 GMC Terrain
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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