TSB Document:

• 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# 050844026A.

Affected Component: EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

Summary

NAVIGATION RADIO LOSES SOME OPTIONS, DIMS OR GOES BLANK AFTER A FEW HOURS OF USE (BULLETIN CANCELLED-NO ACTION REQUIRED). *TT

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