2021 Chevrolet Silverado 1500 Engine Problems

NHTSA component category: ENGINE · data through 07/14/2026

340Engine complaints

44.8%Of all 759 complaints

#1Most-reported category

Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.

How engine ranks on this vehicle

ENGINE340 · 44.8%

POWER TRAIN214 · 28.2%

ELECTRICAL SYSTEM99 · 13%

Unspecified / other67 · 8.8%

ENGINE AND ENGINE COOLING46 · 6.1%

Share of the 759 complaints citing each category; one complaint can cite several. Full breakdown on the 2021 Chevrolet Silverado 1500 overview page.

What owners report

“Lifters blew in my brand new engine with only 18k miles while driving. Engine was shaking & knocking & lost power when trying to accelerate.”NHTSA complaint 11477865 — filed 08/05/2022

“At 7,316 miles my 2021 Silverado 5.3 V8 had lifter failure while driving, the truck would not accelerate correctly and I was forced to pull…”NHTSA complaint 11474873 — filed 07/20/2022

“This 2021Chevrolet Silverado 1500 LT Trail Boss I purchased new April 2021. Since I have owned it the check engine light would flash randomly with…”NHTSA complaint 11474820 — filed 07/19/2022

Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.

Engine complaints by year filed

Frequently asked questions

Does the 2021 Chevrolet Silverado 1500 have engine problems?

Engine is the most-reported problem area on the 2021 Chevrolet Silverado 1500: 340 of 759 complaints on file (44.8%). Complaints are unverified owner reports, not confirmed defects.

How many complaints does the 2021 Chevrolet Silverado 1500 have in total?

759 complaints were on file with NHTSA as of 07/14/2026. Across all categories, 18 involved a crash, 11 involved a fire, 17 reported injuries, and none reported deaths.

What does NHTSA's engine category include?

NHTSA assigns each complaint to standard component categories; this page reports the ENGINE category exactly as NHTSA defines and records it.

About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/14/2026.