2019 GMC Sierra 1500 fuel, hybrid & EV propulsion problems

Related recalls

No recalls on file.

What owners say

1. Filed Sep 22, 2026MOEngineFuel, Hybrid & EV Propulsion

   Often blows blue smoke and oil out exhaust, and uses more engine oil that would ever be expected, especially when pulling a load. I took it to Rusty Drewing GMC dealership IN Jefferson City, Missouri, and they told me everything was fine, that they could not find a problem.

   NHTSA complaint #11766268 · source
2. Filed Aug 28, 2026AREngineFuel, Hybrid & EV PropulsionTransmission & Drivetrain

   I am the owner of a 2019 GMC Sierra 1500 4WD equipped with the 6.2L L87 V8, VIN [XXX], currently at 177,271 miles. On [ADD DATE] while driving 40-45 mph westbound on [XXX] near XXX in [XXX], in a school zone, the engine suffered sudden catastrophic internal failure with complete loss of propulsion and would not restart. No prior warning lights or low oil pressure warning. Vehicle required tow from school zone. GMC dealer inspected and verified catastrophic internal failure.…

   NHTSA complaint #11760257 · source
3. Filed Jul 14, 2026PAEngineFuel, Hybrid & EV Propulsion

   Total engine power loss while driving 70mph on the highway in steady moving traffic causing a safety hazard, with 3 young children in the vehicle. No prior warning lamps, messages or symptoms to indicate a problem. Engine completely shut down while driving and will not turn back on. Had vehicle towed to the dealership. Certified GMC dealership did a full inspection and indicated that the engine assembly needs to be fully replaced. NHTSA Campaign 25V274 for vehicles 2021 and…

   NHTSA complaint #11750369 · source
4. Filed Jul 13, 2026ALEngineFuel, Hybrid & EV PropulsionTransmission & Drivetrain

   The engine went into limp mode as I made turn leaving the damn I was is in town and it was a lot of traffic could’ve been bad if I didn’t pull into the median left me devastated and no crank no start I’ve only had the truck a year it went down a month from when I purchased it

   NHTSA complaint #11750178 · source
5. Filed Jun 30, 2026NYEngineFuel, Hybrid & EV Propulsion

   Lifters (the part that opens and closes engine valves) fail prematurely. There was a loud ticking noises, rough idling. Took to dealership and they advise that yes the lifters are failing and not drivable at this time.

   NHTSA complaint #11747528 · source
6. Filed May 27, 2026VAEngineFuel, Hybrid & EV PropulsionTransmission & Drivetrain

   While driving, the vehicle suddenly began running rough, losing power, and displaying engine warning lights. Due to the severity of the issue, the vehicle was towed to a GMC dealership for diagnosis. The dealership diagnosed lifter failure and a cracked cylinder head. The dealership also documented coolant intrusion, oil/coolant contamination, and evidence of internal engine damage. Repairs were attempted, including replacement of the cylinder head and lifter. After the…

   NHTSA complaint #11740464 · source
7. Filed May 12, 2026FLEngineFuel, Hybrid & EV Propulsion

   I was on my way home from work and everything was driving fine and then I got 1/4 mile from my house and the motor started making a very loud grinding sound. I could barely accelerate. The issue happened out of nowhere. No issues prior to this happening. I was driving about 40 miles an hour when the issue started and I limped it to my driveway, luckily I was not very far away. I have a 3 month old baby and this was my reliable family vehicle. Who’s to say what could have…

   NHTSA complaint #11737475 · source
8. Filed Mar 13, 2026WAEngineFuel, Hybrid & EV PropulsionTransmission & Drivetrain

   While driving down the highway experienced a partial loss of engine power causing jerky/rough operation, harsh shifting, and unpredictable behavior. Was told by the dealer service manager that it was likely a misfire in one of the cylinders. After diagnostics and servicing that included changing spark plugs, wires, and a full engine service it was later confirmed to most likely be due to a stuck lifter and will require a complete engine replacement. I have subsequently…

   NHTSA complaint #11724048 · source
9. Filed Jan 27, 2026TXFuel, Hybrid & EV PropulsionOther / UnknownTransmission & Drivetrain

   This vehicle shudders and vibrates during shifting and acceleration at different speeds. Transmission shifts out of gear quite often leaving me stranded at times trying to make it safely out of traffic.

   NHTSA complaint #11713601 · source
10. Filed Jan 23, 2026ILEngineFuel, Hybrid & EV Propulsion

    My vehicle recently experienced a sudden flashing check engine light, severe misfiring, and rough engine operation, creating an unsafe driving condition. An inspection by an authorized GMC dealership, Serra Buick GMC Champaign, confirmed a failed deactivating valve lifter on Cylinder 5, documenting that the lifter ceased movement after a single engine rotation. The dealership advised that the failure necessitates replacement of all lifters and extensive internal engine…

    NHTSA complaint #11712861 · source
11. Filed Dec 24, 2025MSElectrical SystemEngineFuel, Hybrid & EV Propulsion

    I was driving up the road truck cranked up fine started a morning commute, on cruise control the truck instantly out of nowhere lost power completely with no signs of anything and engine won’t attempt to turn over now. I fear the worst has happened which would be catastrophic internal failure for to a faulty engine & its internals.

    NHTSA complaint #11706910 · source
12. Filed Nov 25, 202582,000 miTXTowedFuel, Hybrid & EV Propulsion

    The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving 62 MPH, the vehicle lost motive power. There was no warning light illuminated. The vehicle was towed to the dealer, where it was diagnosed and determined that the fuel pump module sensor had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 82,000. The VIN was not available.

    NHTSA complaint #11701565 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology