Do you have a question about the GMC Duramax Diesel 2018 and is the answer not in the manual?
Details on various warning lights, gauges, and indicators in the instrument cluster.
Procedures for starting the diesel engine and operating the vehicle.
Information on the DPF system, its cleaning, and related warnings.
Overview of the maintenance section and the importance of regular servicing.
Outlines required services and intervals for normal and severe driving conditions.
Lists recommended fluids, lubricants, and replacement parts for the vehicle.