NHTSA Complaint #11685203 — 2020 CHEVROLET SILVERADO 1500

ELECTRICAL SYSTEM issue reported to NHTSA

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Complaint Details

ODI Number	11685203
Vehicle	2020 CHEVROLET SILVERADO 1500
Component	ELECTRICAL SYSTEM
Date of Incident	August 8, 2025
Date Filed	September 5, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	NC

Consumer Description

Truck experienced reduce power mode. Took to have codes ran and it showed 24 separate codes when engine light comes on. While riding down the road, truck will go into reduce power mode, shift automatically into 4x4, and several other notifications will appear. Taking to dealership and was told the electrical wiring harness was shorting out causing this issue. Cost around $700 for repair, happened one month later, took it back and no charge for the 2nd time. It is currently in reduced power now. Dealership stated to replace the wiring harness would cost over $3,000. Dealership stated this was a manufactures defect, but no recall was issued so all cost is on the owner.

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