It began with showing "Service Brake Assist" for about 2 weeks + then on Dec 18th 2023 around 10:30 as my fiancé was stopped at a stoplight and all of sudden when the light turned green she attempted to continue forward as traffic started to move only to stall stalled out before any movement could be achieve the battery was reading severely depleted and the vehicle would not function at all she…
2019 gmc Terrain electrical problems
severe 23 complaints filed with NHTSA · avg repair $850
Complaints
23
Recalls
0
Crashes
0
Avg fix
$850
What owners are reporting 5 most recent
Blue screen with the message "Service Rear Vision System"
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 …
Backup camera stopped working, giving me a blue screen
While driving the car cut off on us. Started the car and the dash lights were on. Also Navigation stopped working. Took the car to bellamy Strickland and they said no issues was found. Got the car back 12/02_2021 Car seems to be ok at the moment. Melissa at bellamy stated it could have been a computer glitch. Car only has 20k miles on it.
Common questions
How serious is the electrical problem on the 2019 gmc Terrain?
It's a meaningful issue. 23 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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