How to Replace an Ignition Switch in 15 Easy Steps

How to Replace an Ignition Switch
Table of Contents

If you’ve ever experienced a car that won’t start or has difficulty turning over, you may need to replace the ignition switch. Replacing an ignition switch is a fairly straightforward procedure that can be done in just 15 steps. Follow below for a step-by-step guide on how to safely and quickly replace your ignition switch.

Step 1: Disconnect the Negative Terminal of the Battery
Disconnecting the negative terminal of the battery prevents any electrical shock or short circuit from occurring when removing the old ignition switch and installing the new one.

Step 2: Locate the Ignition Switch
The ignition switch is usually located underneath the dashboard on the driver’s side of the vehicle.

Step 3: Remove the Nut/Bolt and Panel/Cover
Use a wrench or pliers to remove the nut or bolt that holds the ignition switch in place. Some vehicles may have a panel or cover that needs to be removed to access the ignition switch.

Step 4: Disconnect the Wiring Harness from the Back of the Ignition Switch. Using a flathead screwdriver, disconnect the wiring harness from the back of the ignition switch by releasing the locking tabs on the connector.

Step 5 – 7 (Repeat Steps 4-6): Varies by Vehicle Model Remove bolts, screws, clips, etc., as necessary for your specific vehicle model to remove the mounting bracket for the old ignition switch and prepare for the installation of a new one.

Step 8 – 12 (Repeat Steps 7-11): Varies by Vehicle Model Install the mounting bracket, reconnect the wiring harness and secure it with locking tabs, and install nut/bolt and panel/cover as necessary for your specific vehicle model.

Step 13: Test New Ignition Switch Turn the key to the “on” position several times to ensure proper operation before reinstalling the battery’s negative terminal.

Step 14: Reinstall the Negative Terminal of the Battery. Reconnect the battery’s negative terminal once you are confident there are no other loose connections.

Step 15: Start the Engine and Enjoy! Start the engine and enjoy your newly installed ignition switch! You did it! You replaced your own car’s ignition switch!


If done correctly, replacing an ignition switch is an easy task that can save you time and money at repair shops. Following these 15 steps should provide you with all you need to know about replacing an ignition switch safely and efficiently so you can get back on track with no fuss! Good luck! West Phoenix Locksmith is always here to help if you need assistance with your ignition switch or any other locksmith needs!

(623) 258-4648


7850 W McDowell Rd, Phoenix, AZ