Special Coverage
Chevrolet technical service bulletin 15114A for 2011-2012 Chevrolet Silverado 1500, 2010-2012 GMC Sierra 1500 and 2011-2012 Chevrolet Silverado 2500 and others.
- Bulletin number
- 15114A
- Component
- Engine
- Summary
- Special Coverage. On some vehicles equipped with a 6.6L Duramax Diesel engine (RPO LML, LGH) the malfunction indicator lamp (MIL) may illuminate due to a condition with the glow plugs. When diagnosed, replacement of one of the engines glow plugs may be required. No drivability issues are generally associated with this issue, but harder starting in cold ambient temperatures may be noted. Dealers are to replace the affected glow plug. The repairs will be made at no charge to the customer.
Owners of these vehicles have filed 159 complaints in the engine category.
Vehicles covered
- Chevrolet Silverado 1500 2011-2012 20112012
- GMC Sierra 1500 2010-2012 201020112012
- Chevrolet Silverado 2500 2011-2012 20112012
- GMC Sierra 2500 2010-2012 201020112012
- Chevrolet Silverado 3500 2011-2012 20112012
- Chevrolet Express 2010-2012 201020112012
- GMC Sierra 3500 2010-2012 201020112012
- GMC Savana 2010-2012 201020112012
- GMC Sierra Denali 2010-2012 201020112012
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