"How reliable is the 2021 Chevrolet Silverado 3500?"

"Based on 52 NHTSA complaints, the 2021 Chevrolet Silverado 3500 has a median complaint mileage of 24760 miles. The most common issue is ELECTRICAL SYSTEM."

"What are common problems with the 2021 Chevrolet Silverado 3500?"

"The most frequently reported component in NHTSA complaints for the 2021 Chevrolet Silverado 3500 is ELECTRICAL SYSTEM, accounting for a significant portion of the 52 total complaints filed."

2021 Chevrolet Silverado 3500: Reliability Data

Source: NHTSA — 52 complaints

Total Complaints

24,760mi

Median Mileage

ELECTRICAL SYSTEM

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

5,728 25th Percentile

24,760 Median Mileage

49,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ELECTRICAL SYSTEM

POWER TRAIN

SERVICE BRAKES

UNKNOWN OR OTHER

LATCHES/LOCKS/LINKAGES

STRUCTURE:BODY

FUEL/PROPULSION SYSTEM

ENGINE

AIR BAGS

FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: RADAR

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"I GOT MY TRUCK IN MAY AND AFTER TWO MONTHS THE BATTERY WENT COMPLETELY DEAD WITHOUT WARNING SO HAD DEALERSHIP TOW IT TO SERVICE KEPT TWO WEEKS SAID IT WAS BATTERY. NOW SAME THING HAPPENED AGAIN. CALLED ROADSIDE ASSISTANCE FROM PHONE BECAUSE ON STAR WOULDN'T EVEN WORK. THEY COME OUT AND JUMPED IT. TH..."

"THE NEW GM 2021 TRAILER LIGHTING MODULE AND/OR SYSTEM IS DEFECTIVE. IT FAILS A PRE-CONNECTION TEST WITH TESTER, GIVES "CHECK TRAILER WIRING" WARNING ON DASH WITHOUT A TRAILER CONNECTED AND TURNS OFF ANY TRAILER LIGHTING CONNECTED WITHOUT WARNING ON THE ROAD, WITHOUT BLOWING A FUSE. THIS PROBLEM IS M..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28