Electric seat won't go back - Kia Forum
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post #1 of 11 (permalink) Old 10-08-2009, 11:24 AM Thread Starter
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Default Electric seat won't go back

The electric control on the driver's seat ('05 Sorento) works in all ways except going back. I wouldn't know if it can got forward as is stuck in the full forward position. I can hardly even fit in it to take it to the dealer to fix it!

Anybody know if/how I can fix myself? I read that maybe I can remove the assembly and spray something on it. How would I do that? Just take a screwdriver and try to pry the plastic cap off? What would I spray on it?

Thanks for any help.
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post #2 of 11 (permalink) Old 10-08-2009, 11:54 AM
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well it's either going to be the track motor or the switch. If your good with electrical you can figure out which wires go to the reverse motor and jumper them.

-J
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post #3 of 11 (permalink) Old 10-09-2009, 07:23 AM
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Originally Posted by kiaron View Post
The electric control on the driver's seat ('05 Sorento) works in all ways except going back. I wouldn't know if it can got forward as is stuck in the full forward position. I can hardly even fit in it to take it to the dealer to fix it!

Anybody know if/how I can fix myself? I read that maybe I can remove the assembly and spray something on it. How would I do that? Just take a screwdriver and try to pry the plastic cap off? What would I spray on it?

Thanks for any help.
There are 2 known issues.
Broken wire at the motor. The seat base was replaced on mine under warranty. I believe now that Kia have issued instructions on repairing/replacing the wiring but I don't have any details. (involves slightly longer wires I think to prevent the problem happing again.)

Broken switch. Replacement of switch.

Either way I think you have to remove the seat to verify/fix.
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post #4 of 11 (permalink) Old 10-23-2009, 08:29 AM
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Default Trevor Sorento

I have been today to my local Kia as my 2005 has started doing the same.

They have ordered a new switch however the guy gave it a reasonable belt towards the seat and then gave it a fairly rough push in all directions and it is now working fine. He said be rough with it and it might solve the problwem it certainly has with mine at the moment.

Cheers.







QUOTE=kiaron;262000]The electric control on the driver's seat ('05 Sorento) works in all ways except going back. I wouldn't know if it can got forward as is stuck in the full forward position. I can hardly even fit in it to take it to the dealer to fix it!

Anybody know if/how I can fix myself? I read that maybe I can remove the assembly and spray something on it. How would I do that? Just take a screwdriver and try to pry the plastic cap off? What would I spray on it?

Thanks for any help.[/QUOTE]
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post #5 of 11 (permalink) Old 10-23-2009, 07:09 PM
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FYI... If there is a chance there is a warranty on the vehicle do not attempt a fix and then take it to the dealer. If they suspect you tried to work on it they can and most likely will deny the claim. Tow it there if you have to.
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post #6 of 11 (permalink) Old 01-30-2010, 11:41 AM
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I have the exact same issue right now with my 2005 Sorento. Everything but back works. The car has an inservice date of 11/05 and has ~47000 miles. That's 4.25 years and less then 50Kmiles. Does anyone know if this would still be covered under the factory warranty?

Thanks in advance.....

Oh....this is my first post and I just found this site. I'll have to go introduce myself later.....thanks again....

Last edited by toycar; 01-31-2010 at 04:24 AM.
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post #7 of 11 (permalink) Old 01-30-2010, 07:18 PM
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You should be covered under the 5yr/60,000mi BtB.
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post #8 of 11 (permalink) Old 01-31-2010, 04:23 AM
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Thanks..I did confirm that with a local dealer.

While waiting, I was able to do a little playing around with the wiring. The switch is definitely not the problem. I removed it and bench tested with a meter. I reinstalled the switch and then disconnected the power wire to the motor. There are only two wires in that connection to the motor. I put a dc volt meter in the connector and I confirmed that the voltage reverses from +12V to -12V when I push the seat back switch forward and back. For some reason the motor will only respond to the +12V. It seems like one of the wires inside the motor must have broken off.

I won't be able to get the car to the dealer till March. My daughter needs it to go back to school.

Anyone have ideas in the meantime?
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post #9 of 11 (permalink) Old 01-31-2010, 05:51 AM
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Originally Posted by toycar View Post
For some reason the motor will only respond to the +12V. It seems like one of the wires inside the motor must have broken off.
That doesn't sound quite right. There is no internal grounding (by design) in the motor. One wire live, one wire ground. Reversing switch reverses polarity on wires. If a wire was broken and (say) shorting to ground (allowing one function), reversing polarity would blow a fuse surely?

Have you tried applying battery voltage direct to motor in both directions?

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I won't be able to get the car to the dealer till March.
You're kidding? Unless you mean because your daughter has it at school. There is the perfect means of educating daughter in dealing with car servicing Get her to take it to a local dealer.

Last edited by gee6; 01-31-2010 at 05:58 AM.
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post #10 of 11 (permalink) Old 01-31-2010, 05:11 PM
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Originally Posted by gee6 View Post
That doesn't sound quite right. There is no internal grounding (by design) in the motor. One wire live, one wire ground. Reversing switch reverses polarity on wires. If a wire was broken and (say) shorting to ground (allowing one function), reversing polarity would blow a fuse surely?

Have you tried applying battery voltage direct to motor in both directions?
Didn't get a chance to try applying direct voltage. We got snow yesterday and my daughter had to get back to school.

What If one of the wires was 'opened' in the motor? Would it then make any difference? Say the motor's casing itself could supply the grounding necessary to make the circuit in one direction but not the other?

Something has to be going on inside the motor south of the connection! The motor works going in one direction (forward) but not the other (backward), AND..... I am definitely getting a reversing of the 12v voltage supply to the motor...... confirmed with a DVM.
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