For 1990-2009 cars

### Removal Procedure

1. Pull the control assembly boot down to disengage the boot from the knob.
2. Using a screwdriver, remove the control lever knob retainer.
3. Remove the control lever knob.

### Installation Procedure

1. Install the control lever knob and knob retainer.
2. Install the control assembly boot onto the knob so the O-ring in the top of the boot is seated in the groove on the bottom of the knob.