NHTSA Complaint #11644144 — 2021 CHEVROLET SILVERADO 1500

ENGINE issue reported to NHTSA

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Complaint Details

ODI Number	11644144
Vehicle	2021 CHEVROLET SILVERADO 1500
Component	ENGINE
Date of Incident	September 21, 2023
Date Filed	February 21, 2025
Mileage	15,253 miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	MI

Consumer Description

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at approximately 35 MPH, the engine started to misfire. There was an unknown service warning light illuminated. The vehicle was taken to the local dealer, where it was diagnosed that left side valve lifters needed to be replaced. The codes displayed were 0329 (Engine/Fuel Exhaust) and 6581 (Modular Component) registering incorrectly. The vehicle was repaired. The manufacturer was not contacted. The failure mileage was approximately 15,253.

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