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Owner complaints · Engine

2021 Chevrolet Silverado engine problems

437 of the 833 complaints owners filed with NHTSA about the 2021 Chevrolet Silverado name the engine (NHTSA’s “Engine” heading — the engine and its cooling system). Filed under the same heading: 955 manufacturer bulletins, 1 recall, 4 NHTSA investigations. Every figure below is a document in a federal file, linked; none is a failure rate, and none is a verdict on any one car.

437 complaints 52% of this model year’s 4 reports a crash 4 a fire typically at 62k miles

What owners filed about the engine

Source: NHTSA complaint database

437complaints name the engine

4 of the 437 reports a crash · 4 a fire · 0 injuries. Self-reported, unverified.

Filed per year: 2020: 1 · 2021: 22 · 2022: 33 · 2023: 21 · 2024: 23 · 2025: 203 · 2026: 134

62kmiles, typically

Half of the 102 owners who gave an odometer reading reported the engine problem between 22,000 and 92,000 miles. A median of reports, not the life of a part.

52%of this model year’s complaints

833 complaints in all about the 2021 Chevrolet Silverado, 134 filed in 2026. The whole picture, every system →

Counts are owner reports to NHTSA, not verified defects, and scale with how many of these were sold; nothing here is a rate. NHTSA groups complaints coarsely, so “Engine” means the same area of the vehicle, not one fault.

Across model years: Chevrolet Silverado engine problems, every year on file →

In owners’ own words

Source: NHTSA complaint database

Filed with NHTSA by the people who own these cars, about the engine. Quoted as written, with anything identifying removed; unverified reports — what was said, not a finding that it was true.

Engine began to shudder, vibrate and lose power on the highway. Multiple codes were eliminated - check engine, service park brake, service ESC, service emissions system. Loss of motive power is a safety issue. Vehicle currently at the dealer for service. I have been notified it is a lifter issue and major engine repair required.

Engine Oct 7, 2021 NHTSA owner report

while stopped,engine running,in gear,foot on brake the truck lurched forward approx 2-3 feet. when i tried to pull forward the engine was revving a much higher rpm's. moved down road approx.

Engine Sep 28, 2021 NHTSA owner report

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 65 MPH, the vehicle inadvertently stalled. Several unknown warning lights including the check engine warning light and the transmission warning light were illuminated.

Engine at 15,000 miles Aug 25, 2021 NHTSA owner report

The lifters in the truck are failing, a brand new truck 12,000 miles on it and the lifters have failed. Which is also leading to an oil problem. They are trying to only fox one bank of lifters instead of replacing both. Due to them wanting to wait until the fail.

Engine Jul 22, 2021 NHTSA owner report

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving at various speeds, the vehicle would not accelerate when the accelerator pedal was depressed. The contact also stated that a loud knocking sound was coming from the bottom of the vehicle while reversing.

Engine at 2,500 miles Jul 7, 2021 NHTSA owner report

What is on file about the engine

Source: NHTSA recalls, investigations and manufacturer communications

Recall filed under this heading

25V274000 High
Apr 24, 2025 · 597,571 vehicles
General Motors LLC (GM) is recalling certain 2021-2024 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles equipped with a 6.2L V8 gas engine. The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure.

NHTSA investigations

EA26005 Loss of motive power due to engine failure post recall remedy
opened Aug 20, 2026 · open
On January 16, 2026, the Office of Defects Investigation (ODI) opened Recall Query RQ26001. This investigation was opened to assess the remedy effectiveness of Recall 25V-274. ODI has received complaints alleging engine failure in vehicles after the recall remedy had been completed, whether that remedy involved an oil viscosity change or a complete engine replacement. General Motors (GM) issued R…
RQ26001 Loss of motive power due to engine failure post recall remedy
opened Jan 16, 2026 · closed Aug 20, 2026
On January 16, 2026, the Office of Defects Investigation (ODI) opened Recall Query RQ26001. This investigation was opened to assess the remedy effectiveness of Recall 25V-274. ODI has received complaints alleging engine failure in vehicles after the recall remedy had been completed, whether that remedy involved an oil viscosity change or a complete engine replacement. General Motors (GM) issued R…
EA25007 Loss of motive power due to engine failure
opened Oct 23, 2025 · open
The Office of Defects Investigation (ODI) has received 1,157 reports of engine bearing failure failures in the L87 6.2L engine produced by General Motors (GM). Of the 1,157 reports received, 173 are outside of the scope of recall 25V-274. These engines are installed in Model Years (MY) 2019–2024 Chevrolet Silverado 1500 and GMC Sierra 1500, and 2021-2024MY Chevrolet Suburban and Tahoe, GMC Yukon/Y…
PE25001 Loss of motive power due to engine failure
opened Jan 16, 2025 · closed Oct 23, 2025
On January 16, 2025, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE25001 after receiving complaints and field reports concerning engine failures in MY2019-2024 GM’s full-size truck and SUV T1XX platform equipped with the L87 6.2L V8 engine. These complainants alleged engine bearing failures resulting in knocking and growling noises from the engine’s bottom end and in so…

955 manufacturer bulletins filed under this heading

The 0 newest are listed; every one is on the model year’s page. Quote the document number at a service desk — it is a diagnosis the maker has already written down.

Trouble codes named on this system

P0300 P2463 P12A6 P0442 P0455 P0106 P0308 P0016

Codes a bulletin or an owner’s complaint about the 2021 Chevrolet Silverado names on this model year; a code with a record of its own links it.

Other systems with a record on the 2021 Chevrolet Silverado

Source: the same files

transmission and drivetrain problems 239 complaints
electrical problems 112 complaints

From here

Every 2027 model on file, by price Compare two vehicles, trim vs trim See what a VIN was priced at See what owners reported

Common questions

Source: NHTSA complaint database, recalls and manufacturer communications

Are engine problems common on the 2021 Chevrolet Silverado?

They are documented: NHTSA holds 437 owner complaints naming the engine on this model year (52% of everything owners filed about it), and 955 manufacturer bulletins, 1 recall, 4 NHTSA investigations are filed under the same heading. Whether it is a problem on one particular car is a diagnosis, not a count, and a count says nothing about how many were sold.

Is there a recall for the engine on the 2021 Chevrolet Silverado?

Yes — one campaign is filed under this heading: 25V274000. A recall is matched by VIN; check yours at nhtsa.gov/recalls.

When do engine problems show up on the 2021 Chevrolet Silverado?

Owners who gave an odometer reading reported it at a median of 62,248 miles; half of them between 22,000 and 92,000. That is when reports cluster, not the life of a part.

What does NHTSA's "Engine" heading cover?

The engine and its cooling system. Owners choose the heading when they file, so it says which area of the vehicle the complaint is about, not which part failed.