2014 GMC Terrain Electrical system Problems
- Complaints
- 31about this part
- Share
- 10%of 297 total for the year
- Median mileage
- 37,500miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 31 complaints about the electrical system of the 2014 GMC Terrain, 10% of the 297 complaints for this model year. Where a mileage was given, the median is 37,500 miles.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“While driving on a rural road the 'collision warning system' activated with no vehicles in sight either in front of me or in the opposing lane. It happened again approximately 3 miles later. I turned the system off. This has the potential of a disastrous out come if I would have been in heavy traffic.”
NHTSA complaint #11343340, filed 2020-08, 93,000 miles“Menu screen in my 2014 Gmc Terrain go blank about 5 times now and I am starting to wonder what the issue is. There are other people experiencing the same problem and it is not due to the blutooth or GPS redirecting. This also made my car completely shut off at a drive thru.”
NHTSA complaint #11097921, filed 2018-05, 86,000 miles“My car completely shut down while turning a corner (powered off). I almost hit a tree because I was unable to turn the steering wheel. Once I applied the brake and put it into park, I was able to restart it with no apparent issue.”
NHTSA complaint #11240527, filed 2019-07, 89,000 miles“My car makes a rubbing noise when and only when you stop. Also my forward collision alert comes on when nothing is in front of me. Sometimes it won't even come on when a car is in front of me.”
NHTSA complaint #11245047, filed 2019-08, 97,000 miles“As I was driving home after work the car just started making a noise and cut of and did not start had to tow to a Gmc dealer that said it need a new engine I as driving on the city street”
NHTSA complaint #11229386, filed 2019-07, 101,000 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…
- 11017252Mar 28, 2025This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
- 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…
- 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.
- 11013069Jan 9, 2025This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
- 11012929Jan 7, 2025This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
- 11011805Dec 6, 2024This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.
- 11009170Oct 25, 2024This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when working on a LIN bus.
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 2014 GMC Terrain
123 complaintsVisibility (wipers, defrost, mirrors)
89 complaintsTransmission and drivetrain
33 complaintsExterior lighting
17 complaintsOther or unknown
16 complaintsFuel system
15 complaintsAir bags
11 complaintsBrakes
9 complaintsElectronic stability control
8 complaintsEngine cooling
7 complaintsSteering
5 complaintsBody and structure
5 complaints
← All problems reported for the 2014 GMC Terrain
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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