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Vehicle speed controlPart report

2014 GMC Terrain Vehicle speed control Problems

Complaints
3about this part
Share
1%of 297 total for the year
Median mileage
71,500miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the vehicle speed control of the 2014 GMC Terrain, 1% of the 297 complaints for this model year. Where a mileage was given, the median is 71,500 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.

“. In october 2019 my car needed to have extensive work done on its timing chains, variable valve timing solenoids, intake variable engine variable timing solenoid, variable valve timing sprocket, heated oxygen sensor, timing cover gasket set, valve cover gasket set, iridium spark plugs, water pump, engine oil filters, synthetic dexos motor oil, coolant. Then in july 2020 the timing chains collapsed on me while I was on my way home from work. The entire engine had to be replaced. My car was completely totaled after the engine collapsed and I was stuck owing 12000 dollars on a useless car.”

NHTSA complaint #11372992, filed 2020-11, 134,000 miles

“First incident-august 28,2014 accelerating onto highway from store lot, sharp right accelerated and engine died. No power, battery ok. Message reduced engine power and stability track . Towed to garage which replace engine module. Forty miles from garage, accelerating on right turn same problem. Engine died (we nearly got hit) and message same , reduced... And stability.. . Towed to garage and waiting for results.”

NHTSA complaint #10631083, filed 2014-09, 9,000 miles

“On October 13, 2023, I was driving on the highway when my 2014 GMC Terrain power was reduced. Suddenly, the engine light came on and car began throttling. Second, an error message appeared on my dashboard indicating “ engine power is reduced.” Then it stopped in the middle of the highway. I was able to restart my vehicle and drove it to a nearby mechanic shop. The mechanic said the problem was my timing chain and that my vehicle was not drivable. I left my vehicle at the mechanic shop because it was the weekend and It needed it to be towed to the dealership. …”

NHTSA complaint #11551737, filed 2023-10

Related service bulletins

Vehicle speed control: other model years

YearComplaintsShare of year
202613%
202518%
202436%
202325%
202212%
202113%
2020116%
201995%
201884%
201721%
201643%
201531%
201431%
201351%
2012113%
2011185%
2010176%

Other parts of the 2014 GMC Terrain

Engine
123 complaints
Visibility (wipers, defrost, mirrors)
89 complaints
Transmission and drivetrain
33 complaints
Electrical system
31 complaints
Exterior lighting
17 complaints
Other or unknown
16 complaints
Fuel system
15 complaints
Air bags
11 complaints
Brakes
9 complaints
Electronic stability control
8 complaints
Engine cooling
7 complaints
Steering
5 complaints

← All problems reported for the 2014 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