2021 Chevrolet Silverado 1500 · symptom sheet
Engine stalls or loses power while driving
- 121owner reports
- 45,000median miles
- $5,000median quote
- 1involved a crash
Newest report Sep 27, 2026 · checked Oct 2, 2026
677 of the 828 complaints on this car are about the engine. 121 of those describe stalling.
Tick what matches of 121 reports
Stalling on other Silverado 1500 years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2025.
What this problem usually is
Stalling reports are some of the most alarming on the site. The engine quits while the car is moving, sometimes on a highway and sometimes at a stop. Many owners say it restarted right away and the dealer found no stored code, which is part of why these complaints pile up before anything gets fixed.
What got replaced
Owners who name the part that was replaced mention the engine (13 reports), the battery (5 reports), the fuel pump (3 reports) and the throttle body (3 reports).
Recalls and investigations
3 recalls on the engine cover the 2021 model year. A recall on the same system isn't always the same failure, so read the defect text.
The transmission control valve may fail and cause the rear wheels to lock up.
The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure.
The transmission control valve may fail and cause the rear wheels to lock-up.
NHTSA investigations into the engine on the Silverado 1500
Loss of motive power due to engine failure post recall remedy. Open.
Loss of motive power due to engine failure post recall remedy. Closed aug 20, 2026.
Loss of motive power due to engine failure. Open.
Loss of motive power due to engine failure. Closed oct 23, 2025, led to recall 25V-274.
Pedestrian alert sounds. Closed aug 7, 2023, led to recall 22V-063.
Non-crash engine compartment fires. Closed sep 8, 2008, led to recall 08V-441.
Non-crash engine compartment fires. Closed jun 12, 2008.
Crank position sensor failure - stall. Closed sep 14, 2006.
What owners paid
14 of the 121 reports quote a price. Each dot is one quote. The middle half runs $1,600 to $6,300.
When it happens
The middle half of failures fell between 16,059 and 81,000 miles, from the 61 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 12 service bulletins or notices for the 2021 Chevrolet Silverado 1500 that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
This service bulletin advises the technician to check if the transmission cooler lines are twisted to correct customer concerns of Harsh Shift, Shudder, Surge, Stall, Transmission Overheating and/or High Transmission Fluid Temperature.
This engineering information (EI) closure ends the need for gathering further information from technicians in regard to the vehicle having loss of power and/or having the MIL illuminated on DIC.
This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to the vehicle having loss of power and/or having the MIL illuminated on the Driver Information Center ...
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on.
8 more on the 2021 Chevrolet Silverado 1500 page.
What owners wrote
“Truck stalled out while driving as if it had run out of fuel. Had to be towed to my house”
Filed Sep 27, 2026
“Truck is equipped with a 6.2 engine. It is a 2021 with less than 100k miles on it. Dealership is stating engine failed for no reason. Dealership confirmed engine failure this past week of April 2026. This is a known issue and my vehicle is not under the recall. Truck stalled out of no where. There was no warning before it did it.”
Filed Apr 22, 2026 · 100,000 miles
“2021 Silverado LTZ L87 6.2L V8 engine. 49753 mi. February 27th 2026 total loss of power when parking. A few weeks later hearing knocking noises coming from driver side engine area. this is my daily driver and need this issued fixed.”
Filed Mar 13, 2026 · 49,753 miles
“Engine starting shaking while driving and lost power. With only 33000 miles on engine.”
Filed May 2, 2025 · 33,000 miles
Should you keep driving it?
This page can't tell you that. 1 of 121 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Paid for this repair before a recall covered it? How recall reimbursement works
Other problems on this car
- Engine failure, knocking or rod bearing 176 reports
- Check engine light or misfire 168 reports
- Transmission shudders, slips or shifts hard 95 reports
- Brakes grind, pulse or wear early 44 reports
- Engine overheats or leaks coolant 30 reports
- Engine rattles or ticks 30 reports
- Transmission fails or needs replacement 28 reports
- Power steering cuts out or goes heavy 26 reports
- Tailgate or liftgate will not open or close 26 reports