Chevrolet Silverado 2007–2018 — technical service bulletin
Bulletin PIT4745D · NHTSA communication 10157021 · issued Sep 20, 2017
Technical service bulletin
communication type
Structure
component
2007–2018
model years
24
vehicle entries
Official summary
This Preliminary Information communication provides information to the technician about vehicles that have raised dents or ripple appearance in the side outer panel of the cargo box around the perimeter of the wheel house opening. Technician should first access the rear of the inner wheelhouse area through the tail lamp cavity and the front of the wheelhouse from under the vehicle, and coat the inner hem of the wheel house to side outer panel with 3M Rust Fighter I. After allowing the 3M Rust Fighter I to dry then apply several coats of Nox Rust X-121B undercoating.
Vehicles covered
- 2017 Chevrolet Silverado
- 2007 Chevrolet Silverado 1500
- 2008 Chevrolet Silverado 1500
- 2009 Chevrolet Silverado 1500
- 2010 Chevrolet Silverado 1500
- 2011 Chevrolet Silverado 1500
- 2014 Chevrolet Silverado 1500
- 2012 Chevrolet Silverado 2500
- 2015 Chevrolet Silverado 2500
- 2016 Chevrolet Silverado 2500
- 2018 Chevrolet Silverado 2500
- 2013 Chevrolet Silverado 3500
- 2017 GMC Sierra
- 2007 GMC Sierra 1500
- 2008 GMC Sierra 1500
- 2009 GMC Sierra 1500
- 2010 GMC Sierra 1500
- 2014 GMC Sierra 1500
- 2015 GMC Sierra 1500
- 2016 GMC Sierra 1500
- 2012 GMC Sierra 2500
- 2011 GMC Sierra 3500
- 2013 GMC Sierra 3500
- 2018 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.