NHTSA Complaint #11587778 — 2020 GMC SIERRA 1500

ELECTRICAL SYSTEM issue reported to NHTSA

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Complaint Details

ODI Number	11587778
Vehicle	2020 GMC SIERRA 1500
Component	ELECTRICAL SYSTEM
Date of Incident	April 28, 2024
Date Filed	May 9, 2024
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	LA

Consumer Description

My wiring harness which affects all systems. I was on the Interstate when out of nowhere any and all warning lights came on. The power was cut and rapidly slowed down. I also pulled into traffic and the truck just lost power. The problem was confirmed by dealership. The vehicle was inspected by dealership and wiring harness was the issue. The issues appeared out of nowhere. All the warnings lights came on at once. There has been numerous issues with this part and it’s even recognized by just.

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