2023 Gmc TERRAIN problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
38 owner complaints analyzed
2 distinct recall campaigns
25,500 mi median reported failure mileage
Scope: 2023 model year. Data snapshot: . 8 complaints include usable failure mileage.
Most common problems
Engine is the most frequently named component, appearing in 14 of 38 complaints (36.8%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Engine operation | 14 | 36.8% |
| Fuel system concerns | 12 | 31.6% |
| Transmission and shifting | 5 | 13.2% |
| Braking behavior | 2 | 5.3% |
| Electrical and battery issues | 1 | 2.6% |
| Steering behavior | 1 | 2.6% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Engine | 14 |
| Fuel/Propulsion System | 14 |
| Electrical System | 7 |
| Power Train | 7 |
| Unknown Or Other | 7 |
| Fuel System, Gasoline | 5 |
| Lane Departure: Blind Spot Detection | 3 |
| Air Bags | 2 |
Engine: 14; Fuel/Propulsion System: 14; Electrical System: 7; Power Train: 7; Unknown Or Other: 7; Fuel System, Gasoline: 5; Lane Departure: Blind Spot Detection: 3; Air Bags: 2
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 4 |
| 25,000 to 49,999 | 4 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 4; 25,000 to 49,999: 4; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (4). 30 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2023 | 1 |
| 2024 | 7 |
| 2025 | 10 |
| 2026 | 20 |
2023: 1; 2024: 7; 2025: 10; 2026: 20
Pattern summary
Engine leads the component reports. Engine operation appears in 14 complaint narratives. Fuel system concerns appears in 12 complaint narratives. Transmission and shifting appears in 5 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11648545 · 2025-03-16 (March 16, 2025)
At stop light turning right, the car stalled, cut on and cut back off, cut on and back off with about 30 cars behind me. Sputtering. On the dash board it said “Engine power reduced”. I had to be pushed out a main highway by police, and thankfully my [XXX] daughter wasn’t in the back seat. I have had this car 12 days with 48256 miles on it. I’m extremely concerned with the safety of this car. And when towed was leaking gas like fluid. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Owner-reported narrative. Look up ODI 11648545 at NHTSA ↗
Owner report 11650027 · 2025-03-23 (March 23, 2025)
While driving 40-45 mph the engine light came on and 50% loss of power was displayed on screen. Thankfully I wasn’t far from home and was in limp mode for the last 2 miles. The mileage of vehicle is 42,000 miles. The codes are reading low fuel pressure and faulty fuel pump. Any help would be appreciated as this shouldn’t be happening to this new of a vehicle.
Owner-reported narrative. Look up ODI 11650027 at NHTSA ↗
Owner report 11638307 · 2025-01-24 (January 24, 2025)
The contact owns a 2023 GMC Terrain. The contact stated while driving at an undisclosed speed, the vehicle was shaking and independently shifted into neutral. In addition, the check engine warning light illuminated, and the vehicle lost motive power. The vehicle was taken to the dealer where it was diagnosed with a possible fuel injector failure. The contact was informed that the fuel injector needed to be replaced. The vehicle was not repaired. The contact was informed that parts were on backorder. The contact stated that the failure occurred …
Owner-reported narrative. 35,600 miles reported. Look up ODI 11638307 at NHTSA ↗
Owner report 11632219 · 2024-12-23 (December 23, 2024)
My vehicle continues to slip and jerk out of gear , brought in to a local Chevy dealership , they test drive the vehicle and Acknowledge the issue. They updated transmission software and give it back to me to drive for 1000 miles or 30 days and see if the problem continues. Problem gets worse slipping and jerking more and more , made appointment dealership cancels my appointment saying they have no transmission tech come back next month for an appointment . Same thing no transmission tech available go somewhere else
Owner-reported narrative. Look up ODI 11632219 at NHTSA ↗
Owner report 11608035 · 2024-08-12 (August 12, 2024)
When I bought the vehicle new from dealership, they told me that side blind zone alert was not available at that time due to a semiconductor shortage, but that it would be available and could be retrofitted after they were available. I noticed that the 2022 retrofit had been authorized, and I need to know when I will be able to get this option retrofitted on my vehicle. It has horrible blind spots, and I have to literally turn around completely to see if there is anyone in the blind spots which is very dangerous because I’m taking my eyes off t…
Owner-reported narrative. Look up ODI 11608035 at NHTSA ↗
Owner report 11755131 · 2026-08-05 (August 5, 2026)
adaptive cruise disengaging alert on dash- no cars or weather conditions to induce this. loss of power and bucking on highway( near accident caused) catostostrophic sudden loss of power engine/transmission failure while mechanic driving resulting in car towed back to dealer. loss of power multiple times causing near accidents. sudden jolting at stop light causing car to propel forward requiered both feet on brake pedal to stop. 4 episodes of near collision 1st altert started 04/4/2024 adaptive cruise light on dash 14,700 miles on vehicle 5 epi…
Owner-reported narrative. Look up ODI 11755131 at NHTSA ↗
Owner report 11681669 · 2025-08-19 (August 19, 2025)
The contact owns a 2023 GMC Terrain. The contact stated that while driving at approximately 5 MPH, and entering the roadway from the driveway, the vehicle stalled. The contact stated that there were no warning lights. The contact stated that the vehicle had lost electrical power. The contact was unable to restart the vehicle. The vehicle used a push-button gear shift PRNDL, and the contact was unable to set the vehicle into park(P) to restart the engine. The contact was able to restart the vehicle after several attempts and drove the vehicle to…
Owner-reported narrative. 12,825 miles reported. Look up ODI 11681669 at NHTSA ↗
Owner report 11673998 · 2025-07-16 (July 16, 2025)
My son was making a left onto a freeway on ramp after traffic cleared and the steering wheel completely locked up resulting in him going over the curb and rolling completely over in a steep ditch. This occurred at a low speed (no more than 25mph), confirmed by the Life369 app. My son's description was that it felt like the wheels were against a wall and the wheel wouldn't turn even though he was using both hands in an attempt to turn. My son said there was no warning lights or any other indication that he noticed, other than the complete loc…
Owner-reported narrative. Look up ODI 11673998 at NHTSA ↗