NHTSA Complaint #11690942 — 2025 CHEVROLET SUBURBAN 1500

ENGINE issue reported to NHTSA

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Complaint Details

ODI Number	11690942
Vehicle	2025 CHEVROLET SUBURBAN 1500
Component	ENGINE
Date of Incident	September 16, 2025
Date Filed	October 2, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	WA

Consumer Description

Cause unknown, however, I have discovered that the engine in my Suburban, the Engine code LZO 3.0L Duramax, has damaged itself internally. I have been told that there is a large batch of engines that have this same problem, and the dealership I sent my car to has several cars in the same position. This problem is causing the engine to lock up or completely quit. This could be serious depending on when this failure happens. Currently, they are telling me that I am months away from getting a new engine due to a back order. Vehicle still in shop, so I do not have records yet, but I will be happy to give them once I have them.

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