GMC Sierra 1500 / 2018
2018 GMC Sierra 1500 problems
Owners have filed 420 complaints about the 2018 GMC Sierra 1500 with NHTSA. Power train accounts for 30% of them — the clear leader, ahead of engine at 15.2%.
Complaints420
Crashes16
Fires3
Injuries8
Deaths0
What owners report breaking
Power train 30.0% · 126
Engine 15.2% · 64
Electrical system 10.0% · 42
Service brakes 9.3% · 39
Steering 7.1% · 30
Unknown or other 6.0% · 25
Suspension 2.4% · 10
Fuel/propulsion system 2.4% · 10
Severity
Of those complaints, 16 describe a crash, 3 describe a fire and 8 report an injury.
Reading the numbers
Across the 29 model years of the GMC Sierra 1500 in this data, 2018 sits 12th by complaint volume. 2014 draws the most.
Filings are rising — 184 in the last three years against 137 in the three before. For a vehicle this age that usually points to a wear-related failure owners are hitting now.
The median odometer reading at the time of complaint was 33,000 miles.
In owners' own words
At 40mph loud bang felt like we were rear ended, sounded like we were rear ended, huge jolt forward nearly causing accident, possible back injury, seats jolted, looked behind us and nothing there. Was driving at 30-35mph and just accelerated slightly to pass a car when this happened. City street 3 lanes. Dealer turned us away because could not duplicate for them. GMC said case was accelerated no call back as of yet. Power train · reported at 6,912 miles
The contact owns a 2018 GMC Sierra 1500. While driving, the vehicle failed to shift into gears, switching from v8 to v4. There were no warning indicators illuminated. The vehicle was taken to classic buick GMC arlington (1400 e interstate 20, arlington, tx 76018, (817) 264-7782), but was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 48,000. Power train · reported at 48,000 miles
I have been experiencing ongoing issues with the transmission of the vehicle I purchased in 2018. Despite it being a brand new vehicle with only 10,000 miles, I have had to bring it back to the dealer multiple times for transmission-related problems. We have tried changing the transmission fluid periodically to address the issues with shifting and shuddering, but the problem has persisted throughout my ownership. Power train
Verbatim from NHTSA filings. Complaints are unverified owner reports.
Safety recalls
Checking NHTSA for open recalls…