A/T Controls - Downshift Bump On Deceleration: Overview

Group: AUTOMATIC TRANSMISSION

Number: 09-AT-020

Date: DECEMBER, 2009

Model: 2007 VERACRUZ

Subject
ECM & TCM UPDATE - DOWNSHIFT BUMP WHEN DECELERATING TO A STOP

DESCRIPTION:

This TSB provides the procedure to update the ECM and TCM with the most recent engine and transmission calibration for 2007 Veracruz vehicles.

APPLICABLE VEHICLES:
Model: 2007 Veracruz (EN) 3.8L vehicles.

Verify the version of the ECM and TCM ROM ID before attempting to update the vehicles software.

ECM ROM ID INFORMATION TABLE:





Verify the version of the ECM and TCM ROM ID before attempting to update the vehicles software. If the ECM already has the new ROM ID, go to 2-1. TCM Update.





TCM ROM ID INFORMATION TABLE





WARRANTY INFORMATION