Complete removal and replacement of the steering column assembly, including disconnection of electrical components, intermediate shaft coupling, and all mounting hardware.

Warnings

Tools required

Parts

• Steering column assembly × 1 — Use OEM specification or quality aftermarket
• Intermediate shaft coupling bolt (if reuse not permitted) × 1 — GM 11589191 or equivalent
• Steering column mounting bolts (if replacement needed) × 4 — Check service manual for reuse allowance

Preparation

1. Park vehicle on level ground, set parking brake, and place transmission in Park
2. Turn ignition to OFF position and remove key
3. Center the steering wheel in the straight-ahead position and verify front wheels are pointed straight
4. Disconnect negative battery terminal and wait minimum 2 minutes for airbag system capacitor discharge
5. Secure the steering wheel in centered position using wire tie through wheel spoke to seat frame to prevent rotation
6. Remove driver's side knee bolster panel and lower trim panels below steering column for access
7. Remove steering wheel using appropriate puller tool per manufacturer procedure (separate job - may require airbag module removal)
8. Document or photograph all electrical connector positions before disconnection

Procedure

1. 1

   Mark shaft alignment and disconnect intermediate shaft
   Working from inside the cabin at the base of the steering column near the firewall, use white paint marker to mark the relationship between the intermediate shaft coupling and the steering column shaft (make alignment marks on both sides of the coupling). Remove the intermediate shaft upper coupling pinch bolt. Carefully separate the coupling from the column shaft by sliding downward. Do NOT allow the intermediate shaft to rotate or the lower coupling to separate at the steering gear.
   ⚠️Alignment marks are CRITICAL. Misalignment during reassembly can cause steering bind, uneven tire wear, or steering wheel off-center condition.
   Torque spec

   Pinch Bolt30 Nm (22 lb-ft)
2. 2

   Disconnect electrical connectors
   Locate and disconnect all electrical connectors from the steering column assembly. This typically includes: ignition switch connector, multifunction switch connectors (turn signal/wiper), PRNDL indicator connector (if equipped), shift interlock solenoid connector, and steering angle sensor connector. Press release tabs fully and pull connectors straight off to avoid pin damage. Use pick tools if needed to release secondary locks on weatherpack connectors.
   ⚠Some connectors have secondary locking tabs that must be released before main connector will separate. Forcing connectors can break locking tabs or bend pins.
3. 3

   Disconnect shift cable and BTSI
   For column shift models: Locate the shift cable attachment at the column shift lever mechanism. Press the cable end retaining clip and pull cable end from shift lever pin. Release the cable housing from the column bracket by pressing retaining tabs. Disconnect the brake-transmission shift interlock (BTSI) cable if equipped by releasing the cable housing from the column housing and disconnecting the cable end from the shift lock mechanism.
4. 4

   Remove steering column covers
   Remove the upper and lower steering column cover halves. These are typically secured by Phillips or Torx screws (T30) located on the underside of the lower cover. Remove all visible screws, then carefully separate the cover halves by releasing any remaining snap clips. Set covers aside with screws organized for reassembly.
   Torque spec

   Cover Screws14 Nm (10 lb-ft)
5. 5

   Remove ignition lock cylinder and switch
   If transferring to new column or if ignition switch is integrated: Turn ignition to RUN position (or use a small screwdriver in the access hole if no key available) and press the lock cylinder release tab located in the access hole on the column housing. Pull the lock cylinder straight out. Remove the ignition switch mounting bolts and disconnect the switch from the column housing. Note the actuator rod position for reassembly.
   ℹ️Some replacement columns come with new ignition components. Verify what is included with your replacement part before removal.
   Torque spec

   Ignition Switch Bolts5 Nm (4 lb-ft)
6. 6

   Remove column mounting fasteners
   Support the steering column with one hand or a suitable stand. Locate the steering column mounting bolts at the instrument panel bracket (typically 4 bolts - 2 upper and 2 lower). Remove all mounting bolts while maintaining support of the column. The column is now only held by its own weight and any remaining wire harness routing.
   ⚠The steering column assembly weighs approximately 15-20 lbs and can drop suddenly when the last bolt is removed. Maintain positive control throughout removal.
   Torque spec

   Steering Column Bolts30 Nm (22 lb-ft)

   Mounting Bolts34 Nm (25 lb-ft)
7. 7

   Remove steering column assembly
   Carefully guide the steering column assembly out of the instrument panel opening, feeding the wiring harness through as needed. Tilt and maneuver the column as necessary to clear the instrument panel and dash structure. Once clear, place the old column on a protected workbench. Inspect the intermediate shaft upper coupling and firewall boot for damage or wear.
8. 8

   Transfer components to new column
   If your replacement column does not include all necessary components, transfer the following from the old column to the new one: multifunction switch assembly, ignition lock cylinder and switch, shift lever and cable bracket (column shift models), steering angle sensor (if separate), and any other vehicle-specific components. Follow reverse disassembly procedure and use original hardware unless replacement is specified.
   Torque spec

   Ignition Switch Bolts5 Nm (4 lb-ft)
9. 9

   Install new steering column assembly
   Position the new steering column assembly and guide it into the instrument panel opening, routing the wiring harness through properly. Align the column with the mounting bracket holes at the instrument panel. Thread all mounting bolts by hand first to ensure proper alignment, then tighten in a cross pattern (alternating upper and lower bolts) to prevent binding. Torque all mounting bolts to specification.
   ⚠Do not fully tighten any single bolt until all bolts are started. Uneven tightening can cause column misalignment and binding.
   Torque spec

   Steering Column Bolts30 Nm (22 lb-ft)

   Mounting Bolts34 Nm (25 lb-ft)
10. 10

    Connect intermediate shaft coupling
    Ensure the steering wheel is still secured in the centered position and the intermediate shaft has not rotated. Align the marks made during disassembly on the intermediate shaft coupling and steering column shaft. Slide the coupling onto the column shaft, ensuring the coupling seats fully (you should feel it bottom out on the shaft). Install the new pinch bolt and torque to specification. Verify alignment marks are still matched after tightening.
    ⚠️Shaft alignment is CRITICAL for proper steering function. Misalignment will cause steering wheel to be off-center and may damage the clockspring or cause steering binding.
    Torque spec

    Pinch Bolt30 Nm (22 lb-ft)
11. 11

    Reconnect shift cable and electrical connections
    For column shift models: Reconnect the shift cable to the shift lever and secure the cable housing in the column bracket. Reconnect the BTSI cable if equipped. Reconnect all electrical connectors to the steering column in the reverse order of removal: ignition switch, multifunction switches, PRNDL indicator, shift interlock solenoid, and steering angle sensor. Ensure all connectors click into place and secondary locks are engaged.
12. 12

    Install ignition lock cylinder
    If removed, install the ignition lock cylinder: Rotate the cylinder to the RUN position, align with the column housing opening, and push firmly until the retaining tab clicks into place. Test that the cylinder rotates smoothly through all positions (LOCK, ACC, ON/RUN, START) and returns properly.
13. 13

    Reinstall column covers and test functions
    Position the lower steering column cover half, then install the upper cover. Secure with all cover screws torqued to specification. Before reinstalling knee bolster trim: Reconnect the battery negative terminal. Turn ignition to ON position (do not start) and verify PRNDL indicator operation, turn signal indicator lights, and all column switch functions. For column shift: Verify shift lever moves through all gear positions and column lock operates correctly in Park.
    ℹ️The SRS light will likely be illuminated due to system interruption. This is normal and will be addressed in verification steps.
    Torque spec

    Cover Screws14 Nm (10 lb-ft)

Reassembly

1. Reinstall steering wheel using proper torque specification and reconnect airbag module per manufacturer procedure (separate from this job)
2. Reinstall driver's side knee bolster panel and all lower trim panels removed during preparation
3. Remove the wire tie securing the steering wheel and verify wheel rotates smoothly through full lock-to-lock travel without binding
4. Double-check that all electrical connectors are fully seated and locked, with no loose wiring that could interfere with column operation or pedal movement

Verification

• With engine off, verify steering wheel is centered when front wheels are pointed straight ahead. If off-center, DO NOT drive - recheck intermediate shaft alignment marks
• Start engine and verify power steering assist is functioning normally with no unusual noises
• Turn steering wheel lock-to-lock slowly and verify smooth operation with no binding, clicking, or resistance
• Test all column-mounted switches: turn signals, wipers, high beams, cruise control (if equipped) - all should function normally
• For column shift: Verify smooth shifting through all gear positions and that vehicle will not shift out of Park without brake pedal depressed
• Verify ignition key rotates smoothly through all positions and steering wheel locks when key is removed and wheel is rotated
• Use OBD-II scan tool to check for any SRS (airbag) fault codes. Clear any codes present from battery disconnect. If codes return after clearing, diagnose before driving
• Test drive vehicle at low speed in a safe area to verify proper steering function, centering, and no unusual vibrations or noises
• After test drive, recheck all mounting bolts and intermediate shaft pinch bolt for proper torque
• Schedule a professional wheel alignment check, as steering component replacement can affect alignment settings

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