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# 040421004.

Affected Component: POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)

Summary
4WD SWITCH INDICATOR LIGHTS FLASHING, 4WD INOPERATIVE, DIAGNOSTIC TROUBLE CODES C0327, P0550 SET. *TT

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Date Published
DEC 01, 2004
NHTSA TSB #
10017442
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