TSB Document:

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

You can still get the detailed info from Volvo for this TSB. Call your local Volvo dealer's service department & ask for a copy of TSB# 4318.

Affected Component: POWER TRAIN:AUTOMATIC TRANSMISSION

Summary

SUBJECT REGARDING NEW SOFTWARE DEVELOPED TO IMPROVE SHIFT QUALITY ON VEHICLES EQUIPPED WITH THE AW 55-50 FIVE SPEED AUTOMATIC TRANSMISSION. THIS SOFTWARE WILL REDUCE HARSH 4-2 AND 3-2 DOWNSHIFTS, GIVE MORE CONSISTENT SHIFT QUALITY AND PROVIDE ENGINE BRAKING IN FIRST GEAR WITH THE GEAR SELECTOR IN POSITION L. *TT

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