NHTSA Complaint #11593045 — 2021 GMC YUKON XL ENGINE AND ENGINE COOLING

Complaint Details

ODI Number	11593045
Vehicle	2021 GMC YUKON XL
Component	ENGINE AND ENGINE COOLING
Date of Incident	January 30, 2024
Date Filed	June 7, 2024
Mileage	16,448 miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	WA

Consumer Description

The contact owns a 2021 GMC Yukon XL. The contact stated that while driving at various speeds, the check engine warning light illuminated, and the Diesel Exhaust Fluid (DEF) message was displayed. During the failure the vehicle decelerated. The vehicle was taken to the local dealer who replaced the NOX sensor, but the failure persisted. The vehicle was taken back to the local dealer who was unable to determine the cause of the failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 16,448.

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