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GMC / Sierra 1500 / 2026

2026 GMC Sierra 1500 problems

Owners have filed 203 complaints about the 2026 GMC Sierra 1500 with NHTSA. Engine accounts for 47.8% of them, far more than any other system, ahead of power train at 16.7%.

Complaints203
Crashes3
Fires0
Injuries0
Deaths0

What owners report breaking

Engine 47.8% · 97
Power train 16.7% · 34
Electrical system 8.4% · 17
Fuel/propulsion system 4.9% · 10
Unknown or other 4.9% · 10
Forward collision avoidance 3.4% · 7
Back over prevention 2.0% · 4
Service brakes 2.0% · 4
Severity

Of those complaints, 3 describe a crash.

Reading the numbers

Across the 29 model years of the GMC Sierra 1500 in this data, 2026 sits 21st by complaint volume. 2014 draws the most.

The median odometer reading at the time of complaint was 3,900 miles.

In owners' own words

While driving on the highway, the steering became much more stiff, and then I heard metallic clanging sounds for a few seconds. The dashboard said press start to start Vehicle. I pressed start while going 30 miles an hour and all lights and instrument clusters went black. I pulled into the grass median where the truck would not start or shift gears. Truck was towed to a GMC dealership Engine
The contact owned a 2026 GMC Sierra 1500. The contact stated that while accelerating from a red light at 15 MPH, the vehicle sputtered and shook before finally moving forward. The contact stated the failure was a recurring failure. The contact associated the failure with NHTSA Action Number: EA26005 (ENGINE). The dealer was contacted. The failure mileage was approximately 160. Engine · reported at 160 miles
The contact owns a 2026 GMC SIERRA 1500. The contact stated while driving 40 MPH, the vehicle independently engaged into limp mode. A dealer was contacted. The vehicle was towed to the dealer where it was diagnosed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not notified on the failure. The approximate failure mileage was 10,000. Engine · reported at 10,000 miles

Verbatim from NHTSA filings. Complaints are unverified owner reports.

Safety recalls

Checking NHTSA for open recalls…

Other GMC Sierra 1500 years

Compare all 29 model years →