Trans reprogram.

[ripdog28]

I have a 2010 and i am sick of the trans. It jumps around and sometimes takes its time deciding what gear to kick down into. Just feels jerky. It is a 6 speed. What programmers are available?

[clinebarger]

Originally Posted by ripdog28

I have a 2010 and i am sick of the trans. It jumps around and sometimes takes its time deciding what gear to kick down into. Just feels jerky. It is a 6 speed. What programmers are available?

If the truck is still under warranty, You might consider leaving it alone.

Heres a TSB on the subject.

Bulletin No.: 09-06-04-026B

Date: April 07, 2010

Subject: Identifying Non-GM (Aftermarket) Engine and Transmission Calibrations for V8 Gas Engines Using Tech 2(R) or Global Diagnostic System (GDS)

Models:
2006-2010 GM Passenger Cars and Light Duty Trucks (Excluding Saab 9-7X)
2006-2009 HUMMER H2
2006-2010 HUMMER H3
Equipped with V8 Gas Powered Engines Only

Attention:
This bulletin applies to V8 gas powered engines ONLY..

Supercede:
This bulletin is being revised to add the 2010 model year and information about retrieving calibrations on a Global A vehicle.

General Motors is identifying an increasing number of engine, transmission and catalytic converter part failures that are the result of non-GM (aftermarket) engine and transmission control calibrations being used.

When alteration to the GM-released engine or transmission control calibrations occurs, it subjects powertrain and driveline components (engine, transmission, transfer case, driveshaft and rear axle) to stresses that were not tested by General Motors. It is because of these unknown stresses, and the potential to alter reliability, durability and emissions performance, that GM has adopted a policy that prevents any UNAUTHORIZED dealer warranty claim submissions to any remaining warranty coverage, to the powertrain and driveline components whenever the presence of a non-GM (aftermarket) calibration is confirmed - even if the non-GM control module calibration is subsequently removed.

Warranty coverage is based on the equipment and calibrations that were released on the vehicle at time of sale, or subsequently updated by GM. That's because GM testing and validation matches the calibration to a host of criteria that is essential to assure reliability, durability and emissions performance over the life of the warranty coverage and beyond. Stresses resulting from calibrations different from those tested and released by GM can damage or weaken components, leading to poor performance and or shortened life.

Additionally, non-GM (aftermarket) issued engine control modifications often do not meet the same emissions performance standards as GM issued calibrations. Depending on state statutes, individuals who install engine control module calibrations that put the vehicle outside the parameters of emissions certification standards may be subject to fines and/or penalties.

This bulletin outlines a procedure to identify the presence of non-GM (aftermarket) calibrations. GM recommends performing this check whenever a hard part failure is seen on internal engine or transmission components, or before an engine assembly or transmission assembly is being replaced under warranty. It is also recommended that the engine calibration verification procedure be performed whenever diagnostics indicate that catalytic converter replacement is indicated.

The PQC has a process to confirm the ECM/PCM calibration is GM issued. The PQC will require a picture of the engine calibration verification screen, as outlined in this bulletin, before authorizing any V8 gas powered engine replacement.

If a non-GM calibration is found and verification has taken place through GM, the remaining powertrain and driveline warranty will be blocked and notated in GMVIS and the dealership will be notified. This block prevents any UNAUTHORIZED warranty claim submission.

[spudz]

there is a GM recalibration to help with this.. Bring it to your dealership and have em reflash it. They all shift funny