Here's a general outline of the steps involved, but remember this is not a substitute for a proper repair manual:
1. Preparation:
* Disconnect the battery: This is crucial to prevent electrical shocks and short circuits. Disconnect both the positive (+) and negative (-) terminals.
* Gather tools: You'll need a variety of tools, likely including:
* Screwdrivers (Phillips and possibly flathead)
* Socket set (metric)
* Possibly a ratchet and extensions
* Possibly a security bit (Torx or other) depending on your Alero's model year.
* Wire strippers/crimpers (if you need to splice wires)
* A new ignition switch (ensure it's the correct one for your Alero's year and model)
2. Accessing the Ignition Switch:
* Steering column removal (possibly): This is the most challenging part. You may need to remove the steering column shroud (the plastic cover around the steering column). The procedure for this varies by year. The repair manual will show you how to safely remove it without damaging anything. You may need to remove the steering wheel (a specialist task requiring tools to hold the steering wheel in place) as well as disconnecting the airbag system.
* Accessing the ignition switch itself: Once the shroud is removed, you'll have access to the ignition switch. It will likely be held in place by screws or a retaining clip. The switch might be located under a plastic bezel or cover.
3. Replacing the Ignition Switch:
* Disconnect the wiring harness: Carefully disconnect the wiring harness from the old ignition switch. Take photos or make notes of the wire connections before disconnecting to avoid confusion during reassembly.
* Remove the old switch: Once the harness is disconnected, remove the old ignition switch from its mounting location.
* Install the new switch: Carefully install the new ignition switch, ensuring it's securely seated in its mounting location.
* Reconnect the wiring harness: Reconnect the wiring harness to the new ignition switch, making sure each wire goes to the correct terminal. Refer to your notes or photos.
* Reassembly: Carefully reassemble the steering column shroud and steering wheel (if removed), making sure all parts are properly secured. Pay close attention to the airbag system connector if you disconnected it.
* Reconnect the battery: Reconnect the battery terminals.
4. Testing:
* Test the ignition: Turn the ignition key to verify the new switch works correctly. Check all the positions (accessory, start, etc.).
Disclaimer: This is a general guide only. Incorrectly performing this repair could result in damage to your vehicle, injury, or even airbag deployment. The steps may vary considerably depending on your Alero's model year. Always consult a repair manual specific to your vehicle before attempting this repair. If you're not comfortable performing this repair yourself, take your Alero to a qualified mechanic.
