GM 25778925
Shift Knob, Titanium

The procedure to replace the Shift Knob begins by using the parking brake then taking out the floor console left extension panel. To access the electrical connector for the tap up/tap down switch disconnect it while positioning the key at run without vehicle start. Carefully insert a flat-bladed tool under the trim ring of the Shift Knob to apply pressure which will drop it down by 13.0 mm (0.5 in) to reveal the Shift Knob retaining screw. The Shift Knob screw must be removed so the technician can guide the transmission tap up/tap down switch electrical harness and connector through the shift control indicator when removing the Shift Knob. The installation process begins with applying gm p/n 88861426 (Canadian P/N 88861442) lubricant to the shift lever tip. Then install the Shift Knob on the shift lever while directing the electrical harness in the right path. Install the knob screw after you tighten it to 4 nm with a torque value of 35 lb in. Press the Shift Knob trim ring upward until a distinct sound indicates its secure placement on the knob. Users should first place the shift lever in park mode and disconnect the transmission tap up/tap down switch electrical connector before turning off the key. The technician should check the shift control operates correctly across all gear settings followed by reinstalling the floor console left extension panel before letting go of the parking brake.

The first step for enclave Shift Knob replacement requires you to activate the parking brake before removing the floor console left extension panel. Tap up/tap down transmission switch connector must get disconnected while having the key turned to run mode with the auto start function disabled. A flat-headed tool should be inserted underneath the trim ring of the Shift Knob while moving the lever backward to create a space for separating trim ring pieces. Downward pressure will free the ring pieces from the knob which will lower 13.0 mm (0.5 in) below to show the knob retainer screw. Proceed by removing the Shift Knob screw then guide the transmission tap up/tap down switch electrical harness and connector through the shift control indicator while taking out the Shift Knob. Use lubricant (P/N 88861426) on the shift lever tip before installing the Shift Knob by guiding the electrical harness properly. Secure the knob screw by applying torque to 4 n.m (35 lb in). Pull the Shift Knob trim ring up until it clicks into place to indicate proper securing onto the Shift Knob. The park position must be selected for the shift lever before turning off the key and reattaching the electrical connector for the transmission tap up/tap down switch. Complete shift operation verification through all ranges before reattaching the floor console left extension panel while releasing the parking brake.

First users must engage the parking brake and remove the floor console left extension panel to access the Shift Knob on the Enclave. Disconnect the transmission tap up/tap down switch electrical connector then position the key at RUN mode without engine startup. Use a small flat-bladed tool to separate the trim ring from the shift knob by inserting it between the pieces with downward pressure. This step reveals the shift knob retaining screw which will drop down approximately 13.0 mm (0.5 in). You can disconnect the shift control knob screw to guide the transmission tap up/tap down switch electrical harness and connector past the shift control indicator during the shift control knob removal from the shift control lever. Use GM lubricant part number 88861426 (Canadian equivalent 88861442) at the shift control lever tip before installing the shift control knob onto the lever while you guide the electrical wiring into position. Fasten the control knob screw together with a torque of 4 Nm (35 lb in). The trend ring of the shift control knob releases when you pull it until it produces an audible click to show full attachment of the shift knob. Use the PARK position on the shift control lever while turning the key to off so you can reattach the electrical connector of the transmission tap up/tap down switch. Adjust the shift control knob for all gear ranges through inspection while installing the floor console left panel extension and releasing the parking brake.