2019 GMC Terrain Electrical system Problems
- Complaints
- 39about this part
- Share
- 21%of 187 total for the year
- Median mileage
- 15,900miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 39 complaints about the electrical system of the 2019 GMC Terrain, 21% of the 187 complaints for this model year. Where a mileage was given, the median is 15,900 miles. 1 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Two incident warnings on my dashboard saying of my back hatch was open when it was not. Had it serviced because the dash warning would not shut off. Service said it was fixed then happened again. Twice this happened intermittently. Another incident when on navigation screen, when the navigator gave directions it changed to phone screen and went back to navigation screen when she stopped talking, like she was calling me to verbally give me directions! …”
NHTSA complaint #11348999, filed 2020-08, 13,000 miles“Leasing a 2019 Gmc Terrain technical, within a few days climate off error came on while trying to turn on the AC or heat. Car safety features never alerted with sounds. Service bulletins pit 5663 and pic 6365a, Gmc known problems before I signed my lease. Contacted Gmc after penske buick Gmc, shillington pa, told me there was nothing they could do to fix the climate off error. Pushed an update through to fix the safety no alert sounds. At this point penske as well as Gmc have no idea when the climate off errors will be fixed. …”
NHTSA complaint #11228823, filed 2019-07, 25 miles“9/30/20 driving home and was accelerating to pass another vehicle, the tcs and stabilitrak lights came on and check engine light began to flash. A brief message popped up to service the tcs system and went away. Check engine light stopped flashing but tcs & stabilitrak/traction lights remained on. I stopped the vehicle as soon as I could, turned it off, waiting a few minutes and restarted - all lights had turned off. Problem has not replicated, but am scheduled for service (oil change) at dealer tasca buick Gmc sat oct 3rd, will discuss during service appointment. …”
NHTSA complaint #11361931, filed 2020-09, 18,800 miles“Bought the Terrain in nov 22nd 2020 at covina chevrolet, california. On nov 25th wanted to restore the car stereo because the settings would not delete data saved and it wouldn't connect to my iphone via usb. So I decided to disconnect the posts from the battery terminals for 30 minutes. Connect back the posts to battery and check if that delete everything and it did but it still wouldn't connect to my iphone. That's when I noticed that srs and service ESC message came on. The ABS, airbags and stability lights were on, turn off the vehicle and turn it back on and didn't fix the issue. …”
NHTSA complaint #11383273, filed 2020-12, 39,998 miles“When trying to start vehicle with push button ignition and brake pedal depressed, the vehicle failed to start. The dash lights would come on and error messages such as low battery came up on dash display. Vehicle was purchased on 11/17/18. Two separate occasions occurred where the car had to be jumped. One on 11/21/18 and 11/22/18. Unsure if an electrical wiring issue or battery issue?”
NHTSA complaint #11153254, filed 2018-11, 130 milesRelated service bulletins
- 11017595Apr 3, 2025This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
- 11017244Mar 31, 2025The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other…
- 11017207Mar 21, 2025This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414…
- 11016948Mar 14, 2025This service bulletin provides repair information to correct a customer concern of Vehicle Will Lock and Unlock (Active Functions Work) but Will Not Crank or Start (Loss of…
- 11017035Mar 13, 2025This service bulletin provides repair information to correct a customer concern of Vehicle Will Not Lock and Unlock (Loss of Active Functions) Crank or Start (Loss of Passive…
- 11016946Mar 13, 2025This service bulletin provides repair information to correct a customer concern of No Crank, No Start, Quick Start/Stall, No FOB Detected, Key FOBs Inoperative, B3924 00, B3925…
- 11017031Mar 12, 2025This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
- 11014230Jan 31, 2025This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11014222Jan 28, 2025This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.
- 11013069Jan 9, 2025This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 5 | 15% |
| 2025 | 4 | 31% |
| 2024 | 7 | 13% |
| 2023 | 7 | 17% |
| 2022 | 7 | 12% |
| 2021 | 7 | 19% |
| 2020 | 27 | 14% |
| 2019 | 39 | 21% |
| 2018 | 35 | 15% |
| 2017 | 9 | 7% |
| 2016 | 9 | 6% |
| 2015 | 31 | 10% |
| 2014 | 31 | 10% |
| 2013 | 22 | 6% |
| 2012 | 32 | 9% |
| 2011 | 29 | 8% |
| 2010 | 48 | 17% |
Other parts of the 2019 GMC Terrain
72 complaintsEngine
70 complaintsTransmission and drivetrain
53 complaintsOther or unknown
21 complaintsVehicle speed control
9 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 28, 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