GMC TSB #4389
2007 GMC Sierra 2500
Affected Component: TRAILER HITCHES
- TSB Document
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- Sorry, the NHTSA has not posted this TSB document yet.
You can still get the detailed info from GMC for this TSB. Call your local GMC dealer's service department & ask for a copy of TSB# 4389.
- Summary
- TRAILER HITCH INSERT - PRODUCT UPDATE. *KB