The ignition switch removal and installation procedure is given in
, under steering, because the steering wheel must be removed for
access to the ignition switch.
To remove the ignition lock:
You must remove the steering wheel
when replacing the ignition lock. On vehicles with a Supplemental
Inflatable Restraint (SIR) system, you must temporarily disable the SIR
system and remove the inflator module when removing the steering wheel.
Leaving the SIR system on could result in deployment of the air bag and
possible personal injury.
- Disconnect the negative battery cable, and remove the steering
- Remove the bumper and the carrier snapring retainer from the
- Use a lock plate compressor screw tool to install the lock plate
compressor screw in the upper steering shaft. To keep the shaft from
telescoping, tighten it to 40 inch lbs.
- Using the lock plate compressor tool, install on the upper steering
shaft, tighten it to depress the shaft lock. Remove the shaft lock
retainer, the compressor tool and the steering shaft lock.
- Remove the turn signal canceling cam assembly. Put the turn signal
switch in the "N" position and remove the upper bearing spring.
- Position the turn signal switch so the mounting screws can be
removed through the holes in the switch and remove the turn signal
- Remove the turn signal switch-to-steering column screws and lift the
turn signal switch. Remove the wire protector and disconnect the turn
signal switch connector.
- Use a terminal remover tool to disconnect the buzzer switch wires
from the turn signal switch connector. Remove the buzzer switch assembly
with needle-nose pliers.
- Place the lock cylinder in the ACC position, then remove the lock
retaining screw and the lock cylinder set.
- To install the new cylinder lock, reverse the removal procedures.
- Tighten the lock retaining screw to 22 inch lbs., the turn signal
switch screws to 59 inch lbs. and turn the turn signal lever screw to 53
- As part of the final replacement procedures, check the operation of
the switches and the steering column.
The steering wheel is splined to the steering
column and held in place by a nut. Courtesy of General Motors
Corporation - Service Operations.
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