Chevrolet Express 2011–2012 — technical service bulletin
Bulletin PB-12050 · NHTSA communication 10044218 · issued May 1, 2015
Technical service bulletin
communication type
Suspension
component
2011–2012
model years
10
vehicle entries
Official summary
Chevrolet/gmc: see document search button for owner letter. On some 2011-2012 trucks, a grinding noise and vibration would be noticeable due to the rear axle right hand side bearing adjuster clip and bolt may come loose inside of rear axle. *pe updated 9/6/12. *pe updated 7/18/14. *pe updated 11/6/15. *pe
Vehicles covered
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.