Chevrolet Express 2010–2020 — technical service bulletin
Bulletin PIP4912G · NHTSA communication 10178350 · issued Jun 26, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2010–2020
model years
34
vehicle entries
Official summary
This Preliminary Information communication provides information to the technician on vehicles that may have an intermittent high idle. If a technician has duplicated, or the customer description aligns with the speeds mentioned in the idle speed description tables, the idle speed should be considered a normal characteristic of current vehicle design.
Vehicles covered
- 2010 Chevrolet Express
- 2011 Chevrolet Express
- 2012 Chevrolet Express
- 2013 Chevrolet Express
- 2014 Chevrolet Express
- 2015 Chevrolet Express
- 2016 Chevrolet Express
- 2011 Chevrolet Silverado 1500
- 2012 Chevrolet Silverado 1500
- 2013 Chevrolet Silverado 1500
- 2014 Chevrolet Silverado 1500
- 2017 Chevrolet Silverado 1500
- 2018 Chevrolet Silverado 1500
- 2019 Chevrolet Silverado 1500
- 2015 Chevrolet Silverado 2500
- 2016 Chevrolet Silverado 2500
- 2020 Chevrolet Silverado 2500
- 2010 GMC Savana
- 2011 GMC Savana
- 2012 GMC Savana
- 2013 GMC Savana
- 2014 GMC Savana
- 2015 GMC Savana
- 2016 GMC Savana
- 2012 GMC Sierra 1500
- 2013 GMC Sierra 1500
- 2014 GMC Sierra 1500
- 2017 GMC Sierra 1500
- 2018 GMC Sierra 1500
- 2019 GMC Sierra 1500
- 2015 GMC Sierra 2500
- 2016 GMC Sierra 2500
- 2020 GMC Sierra 2500
- 2011 GMC Sierra 3500
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.