First, you have to disable the sir system before replacing the shift lever. Move the shift lever seal up the shift lever, and take off the steering column trim covers if you have to. Unplug the shift lever from the base of the column and then take out the screw from the shift lever. Take the shift lever and seal out of the linear shift assembly, making sure you slide the seal towards the small end of the shift lever to remove it. Now, put the shift lever seal onto the narrow end of the shift lever assembly, and then connect the shift lever assembly to the linear shift assembly. Make sure the shift lever screw goes into the shift lever assembly, then tighten it carefully to 20 n.m (15 lb ft). Pull the shift lever seal along the shift lever to the base, making sure it sits correctly in the steering column trim covers. Should they have come off, put the steering column trim covers back in place, then enable the sir system.