This page covers 2 recalls and EPA fuel economy for the 2026 GMC Sierra.
16–24 mpg combined
9.8–14.7 L/100km
Standard Pickup Trucks 4WD
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted. Ranges reflect the 4 tested variants for this model year.
The 2026 GMC Sierra has 2 recalls, the more serious being an electronic stability control warning light that may fail to illuminate after a system malfunction, leaving the driver unaware of a safety issue that can raise the risk of a crash. The second recall involves the owner's manual: certain vehicles were distributed without complete documentation, which means owners may not have access to important operating and safety information.
At a glance
What can fail
The vehicle radio was not configured during manufacturing to automatically download the electronic owner's manual, which is required for occupant protection compliance.
What the fix does
Dealers will reset the vehicle radio to enable automatic download of the electronic owner's manual at no charge.
Summarized — see the official notice for exact wording, dates, and contacts.
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At a glance
What can fail
The electronic stability control system may malfunction, but the warning light won't turn on during the next key cycle to alert you.
What the fix does
A dealer will update the engine brake control module software, or it may be updated over-the-air, at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
