2021 Chevrolet Silverado 1500 Electrical System Problems
NHTSA component category: ELECTRICAL SYSTEM · data through 07/14/2026
Source: U.S. NHTSA complaint data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
How electrical system ranks on this vehicle
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
“2021 Chevy Silverado durmax brought it in three times now for starting issues 2nd time found data module was bad two weeks later brought it…”NHTSA complaint 11468038 — filed 06/07/2022
“Can't pull a trailer without the SERVICE TRAILER BRAKE SYSTEM LIGHT coming on a dinging over and over. Had my trailer completely rewired only to…”NHTSA complaint 11467579 — filed 06/05/2022
“The ESC, parking light, traction control, and engine light came on while driving home. The engine started to shake. There was an issue with braking…”NHTSA complaint 11446085 — filed 01/03/2022
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Electrical System complaints by year filed
Frequently asked questions
Does the 2021 Chevrolet Silverado 1500 have electrical system problems?
Electrical System is the #3 most-reported problem area on the 2021 Chevrolet Silverado 1500: 99 of 759 complaints on file (13%). 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 electrical system category include?
NHTSA assigns each complaint to standard component categories; this page reports the ELECTRICAL SYSTEM category exactly as NHTSA defines and records it.
