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Exterior lightingPart report

2012 GMC Terrain Exterior lighting Problems

Complaints
10about this part
Share
3%of 364 total for the year
Median mileage
35,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 10 complaints about the exterior lighting of the 2012 GMC Terrain, 3% of the 364 complaints for this model year. Where a mileage was given, the median is 35,000 miles. 1 a fire, according to the filers. 1 recall campaign on record is filed under a similar system.

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 headlight system on this vehicle leaves a lot to be desired. The headlights are veiled somehow so that there is no illumination above the headlights with low beam. When driving in hilly areas, the forward projection of the headlights is very limited when traveling down hill. The hi beams illuminate well, but when driving in the country with oncoming traffic and low beams in hilly areas, the view of the side of the road ahead is very restricted. If I had driven this vehicle at night before I bought it, I doubt that I would have bought it, it's that bad.”

NHTSA complaint #10482948, filed 2012-11, 100 miles

“The low beam h11 bulb is causing the (male/female plug in) for this component to overheat causing the plastic to become charred, partially melted and brittle in which the low beam light stops working due to this problem. The wiring is becoming soft at the plug in connection from this heat and allowing the protective wire insulation to be melted permitting the bare wire to be visible which could produce a fire hazard at this location. This has occurred on the right side twice and on the left side once. …”

NHTSA complaint #11043757, filed 2017-11, 28,755 miles

“I have a problem with the Headlights they are yellow and there is no way I have found to clean them. It makes it hard to get a bright view at night especially when travelling on secondary streets with low or limited lightning. I have also noticed that a lot GMC Terrains have the same issue. Is there are will there be a recall on my 2012 GMC Terrain it does create a very dangerous situation especially at night. I no longer like to drive at night because of this problem, the coatings on the lights makes the night vision awful. Thank you for reading. You can send me a reply.”

NHTSA complaint #11436895, filed 2021-10

“The contact owns a 2012 GMC Terrain. The contact received notification of NHTSA Campaign Number: 22V137000 (Exterior Lighting) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that the passenger's side headlamp failed to provide proper illumination. The dealer was made aware of the failure; however, the vehicle was not diagnosed nor repaired. The dealer confirmed that parts were not yet available. …”

NHTSA complaint #11487968, filed 2022-10, 35,000 miles

“The contact owns a 2012 GMC Terrain. The contact stated that the vehicle failed to start. AAA arrived at the contact's residence and replaced the battery. The vehicle was then taken to an independent mechanic where the plugs and other unknown parts were replaced however, the failure recurred. The contact replaced the battery twice. The contact also stated that the passenger's side headlamp had failed. The contact later received notification of NHTSA Campaign Number: 22V137000 (Exterior Lighting) which he associated to the failure. The dealer was not contacted. …”

NHTSA complaint #11464025, filed 2022-05, 78,000 miles

Related recalls

Related service bulletins

Exterior lighting: other model years

YearComplaintsShare of year
202011%
201953%
201810%
201775%
2016107%
2015248%
2014176%
2013103%
2012103%
201172%
201083%

Other parts of the 2012 GMC Terrain

Engine
169 complaints
Visibility (wipers, defrost, mirrors)
81 complaints
Other or unknown
37 complaints
Transmission and drivetrain
37 complaints
Electrical system
32 complaints
Fuel system
29 complaints
Air bags
25 complaints
Electronic stability control
13 complaints
Body and structure
12 complaints
Vehicle speed control
11 complaints
Seat belts
9 complaints
Steering
7 complaints

← All problems reported for the 2012 GMC Terrain

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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