How to Replace a Seat Control Switch

 A seat control switch is designed to move the seat in all directions, this is done by controlling two or three electric motors underneath the seat which are attached to the seat rails by drive cables. On advanced models the seat will have a module which monitors and remembers the seat position which accommodates multiple drivers or passengers. This is done by counting the revolutions of the motor in any particular position and then returning to that position when the memory button is pushed.

What Goes Wrong?

As you can imagine the electric motors that drive the seat controls draw a significant amount of amperage to operate, because of this the seat control switch contacts can become overworked and heat up melting the switches construction which causes the electrical contacts inside to stop working. Most of the time the switch will fail in one direction only, also these switches can become contaminated with dirt or liquids over time which can cause it to stick in one position creating a draw that drains the battery down.

What's the Cost?

Most seat control switches are fairly easy to replace with some exceptions on high end cars. The switch itself will run between $25.00 and $85.00 (US) on Amazon or RockAuto.com. Labor time can be between .5 and 2.5 hours at a shop or dealer. If exact times or repair procedures are needed you can ask our experts to supply you with the information (free), or consult an online resource such as AllData DIY (pay) but this guide and video will be sufficient in most cases.

Let's Jump In!

1. Start by identifying the seat switch that is not working, which should be on the outward side or front of the seat bottom. This switch may have additional controls beside the bottom cushion and seat position control.

2. There will be a set of mounting screws that hold the switch in place, or to remove the plastic bezel cover that will expose the seat switch mounting screws.

3. After removing the cover screws, grasp the cover and pull it outward from the seat, there could be plastic clips holding the cover so be careful not to break it.

4. Next, turn the cover over to expose the switch mounting screws, use a screwdriver to remove the screws. Also, the seat control switch could be mounted to the seat frame rail which can be removed in the same manner.

5. The switch will now be loose from its mounting, but will still be attached to the wiring harness. Some applications allow you to remove the wiring connector before this step.

6. Release the wiring harness connector and pull upward to remove the switch from the harness.

7. This is what the seat position control switch looks like when removed.

Watch the Video!

Please watch this video of the job being done, then continue down the guide to glean additional helpful information.

8. Match the new seat position control switch to the old unit, they should match identically for a proper installation.

9. Reinstall and tighten the switch mounting screws, do not over tighten, these threads are made of plastic and can strip out easily.

10. Reinsert and connect the wiring harness connector into the new switch, there should be an audible click when fully installed.

11. Once the switch is mounted and connected to the wiring harness, reposition the seat side cover.

12. Then, install and tighten the seat side cover mounting screws.

13. Once the job is complete, work the switch in each direction to check its operation and you are all set. If you have additional problems or questions with how to replace the seat control switch or if the switch is not working, our experts will help you for free.

Questions?

Our certified technicians are ready to answer seat control switch questions for free. We hope you saved money and learned from this guide. We are creating a full set of car repair guides. Please subscribe to our 2CarPros YouTube channel and check back often for new videos which are uploaded regularly.