Duramax 3.0 Maintenance and Serviceability (LM2) YouTube

Service Emission System 2020 Duramax. 2020 Duramax Service DEF System Alert Chevy and GMC Duramax Diesel Forum The SES monitors and controls the exhaust gas recirculation (EGR) system and the diesel particulate filter (DPF) It's important to thoroughly diagnose and repair the issue before clearing the code and resetting the system, as clearing the code without fixing the problem.

2020+ LM2 Duramax Powertrain Service Emissions system and check engine light msg This issue often affects the Emission Control System and requires prompt attention

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It stayed on for about 40 miles of highway driving and then went away; The dealer picked it up and gave me a loaner vehicle It's important to thoroughly diagnose and repair the issue before clearing the code and resetting the system, as clearing the code without fixing the problem.

Faulty Emission Reduction Fluid Tank Heater, 2020+ 1500/2500/3500 Dura. The SES monitors and controls the exhaust gas recirculation (EGR) system and the diesel particulate filter (DPF) This issue often affects the Emission Control System and requires prompt attention

DEF service emission system r/Duramax. It stayed on for about 40 miles of highway driving and then went away; Last weekend I got the "Service Emission System" message and the Check Engine light came on