A/T - Slight Hesitation/Noise At Low Speeds In High Gear

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April 26, 2012

2029206





Vehicle Information

Condition

Update Programming, Slight Hesitation and or Driving Noise at Low Speeds in High Gear

Tip:
Only the transmission control module part number and software levels listed in the table below are able to be updated.

Note:
There are no fault codes associated with this concern. If fault codes are present in the engine control module/transmission control module, they must be diagnosed before performing this programming update.

Technical Background

Current transmission control module programming, shifts the transmission into the highest gear possible (even at lower speeds) for improved fuel economy.

Production Solution

Improved transmission control module software, to update the torque converter characteristics.

Service

Update-Programming Procedure:

Tip:
To Update-Programming using SVM, review and follow instructions in Technical Bulletin Instance 2014603 "Software Version Management".

The SVM Process must be completed in its entirety so the database receives the update confirmation response. A warranty claim may not be reimbursed if there is no confirmation response to support the claim.

Note:

Prior to launching VAS-PC application and starting control module update process, confirm tester screen saver and power settings in accordance with Special Tools and Equipment - Service Information Circular # VSE-08-18. Failure to do so may result in the tester entering power save mode during data transfer, and subsequent control module failure.

When using a VAS 6150/5051B or VAS 5052A tester in conjunction with a VAS 5054A wireless transmitter head for a flash procedure, please connect a USB cable between the transmitter head and the tester. Failure to do so
may lead to errors during the flash procedure.





^ Update the Transmission Control Module using the SVM Unit code as listed in the table

The procedure can be found in GFF under Functions/Component Selection, Software Version Management, Adapting Software.

WARNING:
Radiator Fan(s) may cycle ON high speed during the Update Process! There is a risk that personal injury may result if contact is made with spinning fan blades.

Keep hands and all objects away from Radiator Fan(s) during Update Process!

Tip:
The SVM Process must be completed in its entirety so the database receives the update confirmation response. A warranty claim may not be reimbursed if there is no confirmation response to support the claim or action is carried out that is not explicitly stated in the Technical Bulletin.





Ensure ECM/TCM Tuning Form has been completed and signed by customer as required in SVM Technical Bulletin Instance 2014603.





Warranty

Required Parts and Tools





No Special Parts required.

Additional Information

All part and service references provided in this Technical Bulletin are subject to change and/or removal.

Always check with your Parts Dept. and Repair Manuals for the latest information.