GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1999 🢒 Grand Prix 🢒 Steering 🢒 Steering Wheel and Column - Tilt 🢒 Ignition Lock Cylinder Replacement - On Vehicle

Removal Procedure
  1. Disconnect the negative battery cable from the battery. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Remove the upper and lower shrouds. Refer to Steering Column Trim Covers - Disassemble - Off Vehicle .

    3. Object Number: 373859 Size: SH
  3. Put the key in the steering column lock cylinder set (1).
  4. Turn the key to the "START" position.
  5. Install a 1/16 allen wrench (2) into the hole on top of the lock module assembly to release the steering column lock cylinder set retaining pin.
  6. Turn the steering column lock cylinder set (1) into the "RUN" position.
  7. Pull the steering column lock cylinder set (1) out from the lock module assembly.
  8. Remove the key from the steering column lock cylinder set (1).

Installation Procedure

    Object Number: 373862 Size: SH
  1. Insert the key into the steering column lock cylinder set (1).
  2. Line up the locking tab (2) and the positioning tab (3) of the steering column lock cylinder set with the locking tab slot (5) and the positioning tab slot (4) in the lock module assembly (6).
  3. Push the steering column lock cylinder set (1) into the lock module assembly (6).
  4. Rotate the steering column lock cylinder set (1) in the lock module assembly (6) into all positions.
  5. Install the upper and lower shrouds. Refer to Steering Column Trim Covers - Assemble - Off Vehicle .
  6. Connect the negative battery cable to the battery. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.