TSB Document:

• Sorry, the NHTSA has not posted this TSB document yet.

You can still get the detailed info from Buick for this TSB. Call your local Buick dealer's service department & ask for a copy of TSB# 3447.

Affected Component: POWER TRAIN

Summary

4T40E OR 4T45E WILL NOT SHIFT NO DIAGNOSTIC TROUBLE CODES. *TT

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