Transmission Control Module Replacement

WARNING: This page is about a different car, the 2006 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Locating Transmission Control Module

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
NOTE: Refer to Fastener Notice . Fastener Tightening Specifications: Refer to Fastener Tightening Specifications .
1	Transmission Control Module (TCM) Tip: Disconnect the TCM electrical connector. A new TCM requires programming. Refer to Transmission Control Module Programming and Setup . It is recommended that transmission adaptive pressure (TAP) information be reset. Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, the engine control module (ECM), powertrain control module (PCM) or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned. Reset the TAP values. Twisting or tilting of the transmission control module electrical connector while disconnecting may result in bent or misaligned electrical terminal pins.
2	TCM Bracket Nuts (Qty: 2) Tighten: 10 N.m (89 lb in)
3	TCM Bracket Refer to Control Module References for programming and setup information.