NHTSA Complaint #11674021 — 2020 CHEVROLET SILVERADO 1500

ENGINE issue reported to NHTSA

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Complaint Details

ODI Number	11674021
Vehicle	2020 CHEVROLET SILVERADO 1500
Component	ENGINE
Date of Incident	July 14, 2025
Date Filed	July 16, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	VA

Consumer Description

About 3 months after the 5 year 100000 mi warranty with only 70000 miles on the duramax diesel engine the exhaust brake part of the engine emissions/exhaust split along the weld. Have seen a number of these reported on the internet as well. Sounds like a manufacturing problem. The vehicle's check engine light came on and it's now at the dealership getting a new exhaust brake housing and bracket replaced. If this was in California or the 12 states listed would be covered for 8yrs/100000 miles.

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