2014 GMC Terrain: hesitation when accelerating

6 of the 297 complaints about the 2014 GMC Terrain describe hesitation when accelerating.

owner complaints: 6
of this car's complaints: 2%
typical mileage: 130,000
recalls: 0

Is there a fix? 68 service bulletins cover this area of the car. See below

Hesitation when accelerating by model year

2024
3
2023
2
2022
3
2021
1
2020
1
2019
3
2018
4
2017
2
2016
2
2015
6
2014
6
2013
13
2012
3
2011
14
2010
2

What owners say

Filed Oct 5, 2026 · Engine · 65,000 miles · FL

The contact owns a 2014 GMC Terrain. The contact stated that the exhaust manifold was previously replaced due to an exhaust leak and the vehicle was towed. The contact stated that the vehicle was experiencing excessive oil consumption, and a quart of oil was added every 500 to 1,000 miles, causing an abnormal engine ticking sound and timing chain sound. The check engine warning light was illuminated. The contact retrieved DTC: P0420. The vehicle was taken to an independent mechanic, where the timing chain and catalytic converter were replaced; however, the failure persisted. The contact stated that the engine ran rough and experienced reduced power, and the vehicle was idling rough and the vehicle hesitated while accelerating. The contact became aware of an abnormal oil odor during the failure. Additional trouble codes P0017 and P0420 were retrieved. The failure mileage was approximately 65,000.

Filed Jul 15, 2025 · Engine · 130,000 miles · MO

The contact owns a 2014 GMC Terrain. The contact stated that while driving 50 MPH, the vehicle started jerking and hesitating abnormally. A dealer was contacted. The vehicle was towed to a dealer, where it was diagnosed and determined that the piston rings were damaged, the high-pressure fuel pump had failed, and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 130,000.

Filed May 17, 2022 · Transmission · 83,000 miles · OH

The contact owns a 2014 GMC Terrain. The contact stated while driving 75 MPH, an abnormal popping sound was coming from the vehicle. There was no warning light illuminated. As the noise continued, the vehicle began to hesitate and jerk upon the depression of the accelerator pedal. Despite the failures, the contact was able to drive the vehicle to the dealer where they diagnosed the vehicle with a catastrophic transmission failure. The contact was provided an estimate for a new transmission. The manufacturer was notified of the failure and offered financial assistance for the cost of a new transmission. The contact then spoke with a service director who offered no financial assistance and informed him that he was unaware of when the parts for a new transmission would be available. The vehicle remained in the possession of the dealer and was not repaired. The failure mileage was approximately 83,000. The contact has stated that the vehicle was repaired by the dealer.

Filed Jun 16, 2021 · Engine · 140,000 miles · IL

The contact owns a 2014 GMC Terrain. The contact stated while driving at various speeds, the vehicle hesitated while depressing the accelerator. The service engine warning light was illuminated. The contact had taken the vehicle to several independent mechanics and was informed that the catalytic converter needed to be replaced. The contact then took the vehicle to the dealer and it was confirmed that the catalytic converter was defective and needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 140,000.

Filed Apr 14, 2021 · Engine · 56,000 miles · OH

Timing chain actuators diagnosed problem by dealer . Car hesitating, stalling out while driving.

Filed Feb 11, 2020 · Engine, Transmission · 130,000 miles · NC

Engine stalls/ hesitates especially when at a stop, idle for a period such as at a stop light, also when in reverse and does not have a check engine light. This did happen before and a check engine light did appear. I pulled the codes p0010 and p0011.