Safety Score
70
Average
Recalls
0
Complaints
50
NCAP Stars
—
Recalls (0)
No recalls found for the 2018 GMC Sierra 1500.
Owner Complaints (showing up to 50)
| Date | Component | Crash | Injuries | Summary |
|---|---|---|---|---|
| 2026-03-23 | UNKNOWN OR OTHER | No | 0 | I’ve owner the vehicle since new. My A/C condenser has failed 3 times, meaning I’m now about to be on my 4th. The wel… |
| 2026-03-16 | UNKNOWN OR OTHER | No | 0 | Premature frame rot |
| 2026-02-19 | AIR BAGS | No | 0 | The contact owns a 2018 GMC Sierra 1500. The contact stated that while driving approximately 45 MPH on bumpy terrain, t… |
| 2026-02-18 | ELECTRICAL SYSTEM | No | 0 | 1. Electronic power steering modular issue. My 2018 GMC SEIRRA 1500 CREW CAB JUST LOST ALL POWER STEERING. THEN WHEN … |
| 2026-02-06 | POWER TRAIN | No | 0 | I’ve gone through two transmissions on my 2018 gmc sierra 1500 both times the same issue. The gears are shot, hard shif… |
| 2026-01-17 | POWER TRAIN | No | 0 | The contact owns a 2018 GMC Sierra 1500. The contact stated that while driving at various speeds, there was an abnormal… |
| 2026-01-08 | POWER TRAIN | No | 0 | The contact owns a 2018 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the vehicle was… |
| 2025-12-17 | VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:CONDENSOR/EVAPORATOR | No | 0 | The contact owns a 2018 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the air conditi… |
| 2025-12-10 | ENGINE | No | 0 | I have 125,000 miles on my truck. I was traveling with my grandkids in the back seat. We were going through a four way … |
| 2025-12-05 | ENGINE | No | 0 | The lifters in my engine collapsed. This caused a push rod to be bent and the cam shaft to be damaged causing thousands… |
| 2025-11-19 | ENGINE | No | 0 | The injector failure in my 2018 GMC Sierra 1500 resulted in repeated misfire conditions (P0300 and P0307), causing the … |
| 2025-11-18 | POWER TRAIN | No | 0 | 2018 GMC Sierra started having shuddering/jerking/jumping problems at around 60k miles. This problem occurs while drivi… |
| 2025-11-07 | POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER | No | 0 | The contact owns a 2018 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the transmissio… |
| 2025-10-29 | ENGINE | No | 0 | Engine failure. 6.2l with AFM system Extreme oil consumption Heavy metal in oil Loud ticking 120789 miles Purchase da… |
| 2025-10-22 | POWER TRAIN | No | 0 | I OWN A 2018 GMC SIERRA DENALI ULTIMATE, The truck has the 6.2 engine which had the lifter issue as stated with the cur… |
| 2025-10-08 | ENGINE AND ENGINE COOLING | No | 0 | The contact owns a 2018 GMC Sierra 1500. The contact stated that while attempting to accelerate from a stoplight, the v… |
| 2025-10-03 | ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER | No | 0 | Odometer Fraud. The contact purchased a 2018 GMC Sierra 1500. The contact discovered that there was a mileage discrepan… |
| 2025-09-10 | ENGINE | No | 0 | I purchased a 2018 GMC Sierra 1500 6.2 Denali new. I followed all service requirements including oil changes by GM deal… |
| 2025-08-27 | POWER TRAIN | No | 0 | Transmission shutters when going over 50mph |
| 2025-08-22 | POWER TRAIN | No | 0 | The contact owns a 2018 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed toward the resid… |
| 2025-08-20 | POWER TRAIN | No | 0 | The contact owns a 2018 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the vehicle jer… |
| 2025-08-13 | ENGINE | No | 0 | The contact owns a 2018 GMC Sierra 1500. The contact stated that while driving on a neighborhood road at 40 MPH, the ch… |
| 2025-08-06 | POWER TRAIN | No | 0 | Transmission shutting and torque converter came apart destroying the transmission. |
| 2025-08-05 | ELECTRICAL SYSTEM | No | 0 | 2018 GMC Sierra SLT's electric power steering suddenly stopped working, I almost got killed this issue has been repor… |
| 2025-07-29 | UNKNOWN OR OTHER | No | 0 | The truck started to vibrate or shudder . We are having to deal with replacing the transmission on our truck, which has… |
| 2025-07-29 | ENGINE | No | 0 | Radiator cracked along outer edges. Similar to previous TSB’s as released by GM, but my vehicle doesn’t fall under the … |
| 2025-07-20 | POWER TRAIN | No | 0 | The contact owns a 2018 GMC Sierra 1500. The contact stated while driving approximately 70 MPH and attempting the pass … |
| 2025-07-20 | POWER TRAIN | No | 0 | I have a 6.2 engine that had a number 4 cylinder failure due to a engine defect of the crankshaft. They have recalled t… |
| 2025-07-14 | POWER TRAIN | No | 0 | The contact owns a 2018 GMC Sierra 1500. The contact stated that while driving at 60 MPH, there was an abnormal vibrati… |
| 2025-07-14 | ENGINE | No | 0 | The contact owns a 2018 GMC Sierra 1500. The contact stated while his mother was driving 75 MPH on the highway, there w… |
| 2025-07-01 | ENGINE | No | 0 | This 2018 GMC Sierra has 100,000 miles on it and in April 2025 the transmission went out and needed a new one. Now in J… |
| 2025-06-29 | ELECTRICAL SYSTEM | No | 0 | I've had the vehicle service twice for the same incident power steering shut off in the middle of drive Vehicle shuts d… |
| 2025-06-26 | POWER TRAIN | No | 0 | Transmission has a shudder at lower speeds 1200 RMP area. Has been doing it since I bought the truck a few years ago. T… |
| 2025-06-07 | POWER TRAIN | No | 0 | I am the original owner of a 2018 GMC Sierra 1500 with the 6.2L L86 engine and 8-speed 8L90 transmission. I began exper… |
| 2025-05-30 | ENGINE | No | 0 | I own a $35,000 2018 gmc Sierra 1500 6.2l V8 4x4 Denali, which is currently down due to engine failure while I was driv… |
| 2025-05-15 | ENGINE | No | 0 | My vehicle was a well maintained 2018 GMC Sierra 1500. It has 58000 miles. I was driving in 30 mph zone thank God. Hear… |
| 2025-05-14 | ENGINE | No | 0 | GM has discontinued a critical engine belt on the 2018 GMC Sierra 1500 5.3L eAssist. This makes the truck undrivable an… |
| 2025-05-02 | AIR BAGS | Yes | 1 | The transmission would purge forward when shifting gears. The shifting was very rough. This vehicle had recently been… |
| 2025-04-29 | ELECTRICAL SYSTEM | No | 0 | My engine and all electrical components including power steering and power brakes and all dashboard electrical will fai… |
| 2025-04-23 | POWER TRAIN | No | 0 | Transmission just would not go them all of a sudden it jersey really hard in second gear an start to pick up speed..col… |
| 2025-04-18 | SERVICE BRAKES, HYDRAULIC | No | 0 | The contact owns a 2018 GMC Sierra 1500. The contact stated that while driving at various speeds, while depressing the … |
| 2025-04-16 | ENGINE | No | 0 | I have taken it in due to engine mounts 4 different times, transmission replaced and in October 2024 I took it in for i… |
| 2025-04-16 | POWER TRAIN | No | 0 | When driving the transmission will shift hard almost jumping forward, especially from a stopped position into 1st. |
| 2025-04-02 | ELECTRICAL SYSTEM | No | 0 | While driving my truck and making low speed turns the dashboard (including center console) cuts off, along with my powe… |
| 2025-03-11 | POWER TRAIN | No | 0 | When I first bought my 2018 GMC Sierra with the 8 speed transmission it would shift hard from first to second gear. Th… |
| 2025-03-04 | ENGINE | No | 0 | Lifters failed and damaged engine at 68000 miles |
| 2025-03-01 | ENGINE | No | 0 | Spun main bearing in motor. Motor blown. It is available for inspection. GM mechanic inspected and quoted for new motor… |
| 2025-02-23 | SERVICE BRAKES, HYDRAULIC | No | 0 | The contact owns a 2018 GMC Sierra 1500. The contact stated that while depressing the brake pedal, the brake pedal disp… |
| 2025-02-10 | FUEL/PROPULSION SYSTEM | No | 0 | On February 10, 2025 the vehicle, a 2018 GMC Sierra, caught on fire while parked in the driveway of my home. The vehic… |
| 2025-02-07 | ELECTRICAL SYSTEM | No | 0 | My starter quit at 81,000 miles. It has always been a bit weak starting, but I have never had a starter go out on a veh… |