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2021 Chevrolet Silverado 1500 Engine And Engine Cooling Problems

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

46Engine And Engine Cooling complaints
6.1%Of all 759 complaints
#5Most-reported category

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

How engine and engine cooling 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

“The contact owned a 2021 Chevrolet Silverado 1500. The contact stated that approximately 35 minutes after parking and turning the vehicle off he was notified…”NHTSA complaint 11466720 — filed 05/31/2022

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

Engine And Engine Cooling complaints by year filed

1202212024322025122026

Frequently asked questions

Does the 2021 Chevrolet Silverado 1500 have engine and engine cooling problems?

Engine And Engine Cooling is the #5 most-reported problem area on the 2021 Chevrolet Silverado 1500: 46 of 759 complaints on file (6.1%). 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 and engine cooling category include?

NHTSA assigns each complaint to standard component categories; this page reports the ENGINE AND ENGINE COOLING 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.