TSB Document:

Affected Component: POWER TRAIN:AUTOMATIC TRANSMISSION

Summary
2017 ARMADA; SHIFT SHOCK WITH DOWN SHIFT IF YOU CONFIRM Transmission shift shock when accelerating enough to create a 7th gear to 3rd gear down shift. ACTION 1. Refer to step 6 in the SERVICE PROCEDURE to confirm TCM reprogramming applies. 2. If it applies, reprogram the TCM.

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Date Published
FEB 17, 2017
NHTSA TSB #
10119188
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