NHTSA Complaint #11632370 — 2021 CHEVROLET SILVERADO 3500

FUEL/PROPULSION SYSTEM issue reported to NHTSA

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Complaint Details

ODI Number	11632370
Vehicle	2021 CHEVROLET SILVERADO 3500
Component	FUEL/PROPULSION SYSTEM
Date of Incident	November 23, 2024
Date Filed	December 26, 2024
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	OH

Consumer Description

Injector #4 connector harness issue- Known issue on the 6.6L duramax. Driving with my children for Christmas pickup and power reduction occurred while passing another car on the road. Causing us to hit the breaks as the truck wouldn’t allow us to pass timely. Known harness issue by GM and instead of covering I had to pay to have a new connector spliced in. Multiple warning lights. Check engine, Emissions warning, Reduced power, Traction control, parking brake

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