2021 Chevrolet Silverado 1500 · symptom sheet
Check engine light or misfire
- 168owner reports
- 50,000median miles
- $5,000median quote
- 2involved a crash
Newest report Sep 24, 2026 · checked Oct 2, 2026
524 of the 828 complaints on this car are about the engine. 168 of those describe misfire. Only engine failure is reported more often on this car.
Narrower sheets: Engine misfire (46 reports)
Tick what matches of 168 reports
Misfire 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: 2016, 2025, 2026.
What this problem usually is
These reports start with the check engine light. Many describe the engine running rough or shaking at idle, a P0300-series code, or a catalytic converter code. A worrying number say the light was flashing. Owners often list ignition coils or spark plugs already replaced, and the light coming back afterward.
What got replaced
Owners who name the part that was replaced mention the sensor (12 reports), the spark plugs (8 reports), the injectors (8 reports) and the catalytic converter (4 reports).
Recalls and investigations
One recall on the engine covers the 2021 model year. A recall on the same system isn't always the same failure, so read the defect text.
The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure.
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
18 of the 168 reports quote a price. Each dot is one quote. The middle half runs $200 to $9,500.
When it happens
The middle half of failures fell between 15,253 and 85,000 miles, from the 93 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 33 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.
Certain vehicles listed above, may have a condition that could cause the engine coolant control valve to fail an onboard vehicle diagnostic test.
This bulletin advises the tech that the Exhaust Roller Follower may be the issue with the engine Ticking noise, misfire or rough run and what to replace if found the cause.
This technical bulletin provides repair information to correct a customer concern of Evaporative DTCs P0442, P0446, P0455 or P0449, Caused by Dust Intrusion into the Evaporative Canister.
This service bulletin provides repair information for Engine Wire Harness Chafing to correct customer concerns of IPC Gauges Sweep, IPC Warning Message, SES/Check Engine/MIL, No Start/ No Crank, Runs Rough, Stalls, Reduced Engine Power, Various DTCs.
29 more on the 2021 Chevrolet Silverado 1500 page.
What owners wrote
“Left and right cylinder heads failed. Left bank at 20,000 and right bank at 40,000 miles”
Filed Oct 9, 2025 · 40,000 miles
“The 3 and 4 cylinder need to be replaced at 130000 miles with regulate maintenance always maintained”
Filed Aug 27, 2025 · 130,000 miles
“Cylinder 5 misfire due to collapsed lifter and bent pushrod. 3rd time this has happened. Dealer replace half of engines lifters at 4K miles, the other half at 19K miles and now itâs occurred again even with all the lifters replaced in the engine.”
Filed Sep 7, 2024 · 19,000 miles
“Engine lifters failed at 36000 miles, causing the vehicle to misfire. Engine lifters failed a second time at 42000 miles after being repaired, again causing the engine to misfire.”
Filed Aug 14, 2023 · 36,000 miles
Should you keep driving it?
This page can't tell you that. 2 of 168 reports involved a crash and 1 people were hurt. 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 Which lights mean pull over now? Warning lights by color and urgency
Other problems on this car
- Engine failure, knocking or rod bearing 176 reports
- Engine stalls or loses power while driving 121 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