Chevrolet Silverado 2017–2018 — technical service bulletin
Bulletin 17456 · NHTSA communication 10137162 · issued Jan 29, 2018
Technical service bulletin
communication type
Wheels
component
2017–2018
model years
5
vehicle entries
Official summary
17456 - Customer Satisfaction Program. Certain vehicles may have a condition in which the rear wheel hub nut could become loose due to the rear wheel hub nut retainer not being formed properly. If the hub nut loosens, the StabiliTrak message may be displayed in the driver information center (DIC) and the traction control indicator may illuminate, axle fluid may leak from the axle seal area, and rear axle housing damage could occur. Replace the hub nut retainer. Inspect the axle tube threads for damage and repair if necessary.
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.