Chevrolet Express 2010–2016 — technical service bulletin
Bulletin PI1214B · NHTSA communication 10126345 · issued Oct 2, 2015
Technical service bulletin
communication type
Engine and Engine Cooling
component
2010–2016
model years
60
vehicle entries
Official summary
This preliminary informational bulletin provides service personnel with a guide to determine which SI documents and scan tool parameters to reference when encountering an: Exhaust Fluid Quality Poor message displayed, and a Reductant Fluid Quality Test status that will Pass, Time Out, Fail or Interrupt and other DEF messages that maybe observed.
Vehicles covered
- 2010 Chevrolet Express
- 2011 Chevrolet Express
- 2012 Chevrolet Express
- 2013 Chevrolet Express
- 2014 Chevrolet Express
- 2015 Chevrolet Express
- 2016 Chevrolet Express
- 2010 Chevrolet Silverado 1500
- 2011 Chevrolet Silverado 1500
- 2012 Chevrolet Silverado 1500
- 2013 Chevrolet Silverado 1500
- 2014 Chevrolet Silverado 1500
- 2015 Chevrolet Silverado 1500
- 2016 Chevrolet Silverado 1500
- 2010 Chevrolet Silverado 2500
- 2011 Chevrolet Silverado 2500
- 2012 Chevrolet Silverado 2500
- 2013 Chevrolet Silverado 2500
- 2014 Chevrolet Silverado 2500
- 2015 Chevrolet Silverado 2500
- 2016 Chevrolet Silverado 2500
- 2010 Chevrolet Silverado 3500
- 2011 Chevrolet Silverado 3500
- 2012 Chevrolet Silverado 3500
- 2013 Chevrolet Silverado 3500
- 2014 Chevrolet Silverado 3500
- 2015 Chevrolet Silverado 3500
- 2016 Chevrolet Silverado 3500
- 2010 GMC Savana
- 2011 GMC Savana
- 2012 GMC Savana
- 2013 GMC Savana
- 2014 GMC Savana
- 2015 GMC Savana
- 2016 GMC Savana
- 2010 GMC Sierra 1500
- 2011 GMC Sierra 1500
- 2012 GMC Sierra 1500
- 2013 GMC Sierra 1500
- 2014 GMC Sierra 1500
- 2015 GMC Sierra 1500
- 2016 GMC Sierra 1500
- 2010 GMC Sierra 2500
- 2011 GMC Sierra 2500
- 2012 GMC Sierra 2500
- 2013 GMC Sierra 2500
- 2014 GMC Sierra 2500
- 2015 GMC Sierra 2500
- 2016 GMC Sierra 2500
- 2010 GMC Sierra 3500
- 2011 GMC Sierra 3500
- 2012 GMC Sierra 3500
- 2013 GMC Sierra 3500
- 2014 GMC Sierra 3500
- 2015 GMC Sierra 3500
- 2016 GMC Sierra 3500
- 2010 GMC Sierra Denali
- 2011 GMC Sierra Denali
- 2012 GMC Sierra Denali
- 2013 GMC Sierra Denali
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.