GM 25736471
Gear Shift Assembly

The first step for shift control replacement involves removing console trim plates followed by detaching the Shift Cable from the shifter pin with its terminal snapped off. Proceed by taking out the Shift Cable bolt and cable from the shifter then disconnect the automatic transmission shift lock actuator wire harness connector from the solenoid before you remove the locking tab from the park lock cable so it can be lifted out of the shifter slot. To extract the shifter assembly begin by removing the console trim plate and unsnapping the Shift Cable terminal from the shifter pin before removing the Shift Cable bolt and disconnecting the automatic transmission shift lock actuator wire harness connector from the solenoid while lifting out the park lock cable from its slot on the shifter. Unhook the park lock cable from the park lock cam followed by removing shifter fasteners to spread the console side panels apart for shifter assembly removal. The installation process requires users to spread console side panels while installing the shifter assembly but they need to follow fastener notice in service precautions. Screw shifter fasteners to 9 nm (79 inch lbs.) while inserting the park lock cable into the park lock cam before sliding it into the shifter as the cable locking tab should be fully engaged. The automatic transmission shift lock actuator wire harness connector needs attachment followed by terminal snapping onto the shifter pin and cable fastening to shifter assembly at 25 nm (18 ft. Lbs.). The Shift Cable should be adjusted while the shifter sits in n (neutral) by first loosening and then tightening the shifter adjuster nut to 25 nm (18 ft. Lbs.). The last step is to install the console trim plate.

The first step in shifter A/T repair and service should start with gathering the specific tool J 43146 Tamper Proof Bit (J 43146). Proceed with the removal of console trim plates beginning with the one on the console and the one on the left side. Use the J 43146 tamper proof bit to remove the anti-theft plate along with the tamper proof fastener from the shifter when the vehicle carries RPO Code (T1A). The beginning of the shifter A/T service and repair process involves unfastening the shift cable terminal from the shifter pin and taking out the shift cable bolt with its wire from the shifter followed by unlinking the BTSI wire harness connector from the BTSI solenoid. The locking tab on the cable park lock needs to be released before lifting the cable away from the slot in the shifter and removing it from the park lock cam of the shifter. Remove the shifter fasteners by disconnecting the wire harness connector for the backlight function. The shifter assembly will become accessible after separating the console side panels. The installation process requires you to spread the console side panels again before installing the shifter assembly while securing each shifter fastener at 9 Nm (79 inch lbs.). The shifter backlight wire harness connector should be connected and then the park lock cable must be inserted into the park lock cam located on the shifter before sliding the park lock cable into the shifter while ensuring the cable locking tab stays fully engaged. Join the BTSI solenoid wire harness connector then snap the shift cable terminal on the shifter pin before fastening the shift cable to the shifter while tightening the fastener to 25 Nm (18 ft. lbs.). The shift cable adjustment requires putting the shifter into the N position followed by unfastening and then re-tightening the adjuster nut to 25 Nm (18 ft. lbs.). Users with T1A RPO Code need to install the anti-theft plate and tamper proof fastener on the shifter through the usage of J 43146 tamper proof bit. Finish by adding the console trim plate from the left side together with the other console plate.