* Overdrive Off button: This is the most common button associated with the shifter.
* Other buttons (less common): Depending on options, there might be buttons for traction control or other features integrated into the shifter assembly.
There's no single, universal procedure. You'll need to identify the specific button and its location on your shifter to provide a more precise answer.
However, a general approach for most shifter buttons involves these steps:
1. Identify the Button: Determine exactly which button needs replacing. Take a picture for reference.
2. Disconnect the Battery: This is crucial to prevent accidental short circuits.
3. Remove the Shifter Surround/Bezel: This usually involves carefully prying off the plastic trim around the shifter. Start at one corner and gently work your way around. Use plastic trim tools to avoid scratching the plastic. There might be clips or screws holding it in place. Consult your vehicle's repair manual (if you have one) for specific instructions.
4. Access the Button: Once the surround is removed, you should have better access to the button. The button may be held in place by a clip, screw, or simply friction fit.
5. Remove the Old Button: Carefully examine how the button is attached. Use a small flathead screwdriver or similar tool to gently pry it loose if necessary. Be cautious not to break any tabs or damage the surrounding plastic. Take pictures as you disassemble to help with reassembly.
6. Install the New Button: Install the replacement button, ensuring it's securely fastened. Follow the reverse of the removal procedure.
7. Reassemble: Put the shifter surround/bezel back in place, making sure all clips are properly engaged.
8. Reconnect the Battery: Reconnect the battery.
9. Test the Button: Test the new button to ensure it's functioning correctly.
Important Considerations:
* Repair Manual: A factory repair manual for your specific year and model Alero is highly recommended. It will provide detailed diagrams and instructions. You can find these online (often for a fee) or through automotive parts stores.
* Replacement Button: You'll need to find a replacement button. This might involve contacting a salvage yard, an online parts retailer (like eBay or Amazon), or a dealership. Specify your year and model Alero when ordering to ensure compatibility.
* If Unsure, Seek Professional Help: If you are not comfortable performing this repair yourself, take your vehicle to a qualified mechanic.
Without knowing the specific button you need to replace, this is the best general guidance I can offer. Providing more details about the button will allow for a more precise answer.
