15801
Chevrolet technical service bulletin GCUS-3-553 for 2011 Chevrolet Silverado 1500, 2012, 2015-2016 Chevrolet Silverado 2500 and 2013 Chevrolet Silverado 3500 and others.
- Bulletin number
- GCUS-3-553
- Component
- Engine
- Summary
- 15801 - Customer Satisfaction Program. (2012 model year repair suspended) Vehicles equipped with Duramax Diesel Engine (RPO LGH or LML) and Ambulance Upfitter or Fire Truck Upfitter (RPO YF2 or ANM), may have a condition in which the emission control system as designed will limit speed under certain conditions. The EPA has approved General Motor?s request to remove the emission control system speed limitations on these emergency vehicles where applicable. Dealers are to reprogram the Engine Control Module (ECM) with new calibration for emergency vehicles, which will remove the emission control system speed limitations, and also provide an earlier warning for Diesel Particulate Filter (DPF) regeneration.
Owners of these vehicles have filed 99 complaints in the engine category.
Vehicles covered
- Chevrolet Silverado 1500 2011 2011
- Chevrolet Silverado 2500 2012, 2015-2016 201220152016
- Chevrolet Silverado 3500 2013 2013
- Chevrolet Express 2010-2016 2010201120122013201420152016
- GMC Savana 2010-2016 2010201120122013201420152016
- GMC Sierra Denali 2011-2012, 2015 201120122015
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