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Heated seats

Tiny
CARIDIOT99
  • MEMBER
  • 2003 BUICK RENDEZVOUS
Electrical problem 6 cyl All Wheel Drive Automatic 60000 miles

Im pretty much a car idiot, but was hoping to get some advice. Recently, my 2003 Buick Rendezvous, heated seats just stopped working. No light on panel switch button and no heat from seats.

Could this be as simple as a fuse? Or has anyone else experienced this same problem? Any input would be welcome.

Thanks
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Friday, November 28th, 2008 AT 10:36 AM

11 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,640 POSTS
Hello,

The system is amazingly simple they have a fuse a switch and a control module. Lets check the power source which is a 30 amp breaker and then go from there. Here is a guide to help you see how to check for power and ground along with a guide on how to check the fuse.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

and

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Here are some heated seat wiring diagrams and the fuse locations (below).

Please let us know what happens.

Cheers, Ken
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Monday, November 13th, 2017 AT 8:10 PM
Tiny
JOHN PLUARD
  • MEMBER
  • 2 POSTS
  • 2003 BUICK RENDEZVOUS
  • 0.5L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 190,000 MILES
Driver side heated seat does not work. Light on switch does not come on. Where is the fuse located?
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Monday, November 13th, 2017 AT 8:11 PM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
If the passenger seat works, then the fuse is not your issue. You will have to troubleshoot by following the wiring diagram and testing with a test light.

https://www.2carpros.com/images/external/105720980.gif
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Monday, November 13th, 2017 AT 8:11 PM (Merged)
Tiny
JOHN PLUARD
  • MEMBER
  • 2 POSTS
Thank you.
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Monday, November 13th, 2017 AT 8:11 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,640 POSTS
Please let us know what you find so it will help others.

Best, Ken
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Monday, November 13th, 2017 AT 8:11 PM (Merged)
Tiny
JMCEAHERN
  • MEMBER
  • 1 POST
  • 2003 BUICK RENDEZVOUS
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 65,000 MILES
Electrical problem
2003 Buick Rendezvous 6 cyl All Wheel Drive Automatic 65000 miles

The driver side seat heater quit working all of a sudden. The switch indicator light still comes on when the switch is activated but no heat follows. The passenger side has continued to work without problems. I assume they are on separate fuses? Checked under the seat to see if any wires were visibly damaged or disconnected. None found. Any ideas on how to trace down the problem with a multi-meter (Unfortunately I have no schematic).

Cold b>?#Nns in Colorado,

Joe
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Monday, November 13th, 2017 AT 8:11 PM (Merged)
Tiny
DENNYP
  • MECHANIC
  • 1,824 POSTS
You need to replace the seat heater elements in the driver seat.
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Monday, November 13th, 2017 AT 8:11 PM (Merged)
Tiny
KEVIN HEBRANK
  • MEMBER
  • 1 POST
  • 2005 BUICK RENDEZVOUS
Electrical problem
2005 Buick Rendezvous 6 cyl All Wheel Drive Automatic

The drivers side seat does not heat up but the passenger side does. The light on the switch comes on after waiting a while but the seat does not heat up. Is there a fuse in the seat?
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Monday, November 13th, 2017 AT 8:11 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
If the light comes on, it is getting power. Make sure there are no damaged wires or anything disconnected.
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Monday, November 13th, 2017 AT 8:11 PM (Merged)
Tiny
PAPAGREG
  • MEMBER
  • 1 POST
  • 2003 BUICK RENDEZVOUS
  • 3.4L
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 121,000 MILES
The driver seat heated up fine and then the next time it was driven, it didn't heat up at all.
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Monday, November 13th, 2017 AT 8:12 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Most of the time the heater element in the seat goes bad. Do you have a multi meter to do some testing?
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Monday, November 13th, 2017 AT 8:12 PM (Merged)

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