Chevrolet Express 2011–2016 — technical service bulletin
Bulletin PI0235K · NHTSA communication 10137346 · issued Feb 1, 2018
Technical service bulletin
communication type
Fuel System, Other
component
2011–2016
model years
28
vehicle entries
Official summary
This preliminary informational bulletin provides repair information to correct customer concerns of an exhaust leak or vibration/rattle noise at approximately 900 RPM, fuel smell/white smoke noted intermittently (usually after coming to a stop), and/or an oily substance noted on exhaust downpipe.
Vehicles covered
- 2011 Chevrolet Express
- 2012 Chevrolet Express
- 2013 Chevrolet Express
- 2014 Chevrolet Express
- 2015 Chevrolet Express
- 2016 Chevrolet Express
- 2011 Chevrolet Silverado 1500
- 2011 Chevrolet Silverado 2500
- 2012 Chevrolet Silverado 2500
- 2013 Chevrolet Silverado 2500
- 2014 Chevrolet Silverado 2500
- 2015 Chevrolet Silverado 2500
- 2013 Chevrolet Silverado 3500
- 2011 GMC Savana
- 2012 GMC Savana
- 2013 GMC Savana
- 2014 GMC Savana
- 2015 GMC Savana
- 2016 GMC Savana
- 2011 GMC Sierra 2500
- 2012 GMC Sierra 2500
- 2013 GMC Sierra 2500
- 2014 GMC Sierra 2500
- 2015 GMC Sierra 2500
- 2011 GMC Sierra Denali
- 2012 GMC Sierra Denali
- 2013 GMC Sierra Denali
- 2015 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.