Question about 2004 GMC Envoy

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Seat Heaters in 2004 Yukon turn off after a few minutes

The seat heater in the drivers seat has started to turn off after only being on for a few minutes. I was messing with it this morning and it started to turn off as soon as I would press the button....after I turned the car off and back on it stayed on longer but still went off on its own....any ideas??

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  • 73 Answers

Check your personal settings. my brothers did the same until he reset the personal settings

Posted on Feb 03, 2009

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  • 162 Answers

SOURCE: why would both electrical seats including the seat

Check Fuses, also could be a problem with BCM ( Body control module)

Posted on Apr 03, 2010

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Posted on Jan 02, 2017

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Seat heater comes on by itself in 2004 yukon denali


Heated Seat Components
The heated seat system consists of the following components:
• Driver and passenger heated seat switches
• Driver and passenger seat back heater elements
• Driver and passenger seat cushion heater elements
• Driver and passenger seat back temperature sensors
• Driver seat module
• Driver door module
• Passenger door module
When there are modules involved in the operation of any componet that's acting up , the module's electronic's could be the culprit ! But without testing who's to say what the problem could be !
I would have it check for DTC'S
DTC B2425 or B2430
The driver and passenger seat heaters are controlled by the driver seat module. Power is supplied to the driver seat cushion and back heater elements through individual voltage supply circuits. Power is supplied to the passenger seat cushion and back heater elements through a common voltage supply circuit. All of the driver and passenger seat heater elements are grounded by the driver seat module through individual low side drive control circuits. The heater element control circuits are pulse width modulated to ground by the driver seat module in order to control the seat temperatures by regulating the current flow through the heater elements.
DTC B2435 or B2440
The driver seat module relies on inputs from thermistors installed in the driver and passenger seat backs to control heated seat temperatures. The thermistors are 2-wire sensors supplied with a 5-volt referenced signal circuit and low reference circuit from the driver seat module. Resistance through the thermistors varies with temperature causing the heated seat sensor signal circuit voltage levels to decrease as the seat back temperatures rise.
Install a scan tool.
Start the engine.
Turn the heated seat ON.
With a scan tool, observe the Heated Seat Sensor parameter in the data list for the driver seat module.
Does the scan tool indicate that the heated seat sensor parameter is within the specified range?
0.078-4.94 V

Dec 08, 2016 | GMC Yukon Denali Cars & Trucks

1 Answer

Electric seat heaters don't work, both driver and passenger.


try operating one at a time and see if they still cut out

Dec 10, 2015 | 2000 Jeep Grand Cherokee Limited

1 Answer

Seat heater


some seat heaters have thermostats-could be a bad thermostat and finally it burned out. also check your fuses first

Dec 05, 2013 | 2004 Lincoln Town Car

1 Answer

Why would both electrical seats including the seat heaters not work on my 2004 gmc yukon denali?


Check Fuses, also could be a problem with BCM ( Body control module)

Apr 03, 2010 | 2004 GMC Yukon

1 Answer

My power seat stopped working in my 2003 Yukon XL. The heated seats stopped working as well.


Try this remove the ckt breaker for the power seats the ckt breaker is located in the fuse box inside down by the drivers left foot. leave breaker out for about 10 seconds then reinstall it and see if the seat starts moving. If it does there is a reprogram for this and needs to be done by a dealer or someone who has access to be able to reprogram your vech.
several things could cause your heated seats to not work. If the seat and heated seat seat stopped at the same time could be the reprogram could fix it. If the heated seat quit working at a differant time it could be the seat heater element. get a schematic of the heated seat and ohm the wires for the element. If either element tests open then the element will need to be replaced. You might as well replace both of them at the same time since the seat covers have to come off to replace the seat heaters.(back and bottom ) If one element is bad then both heaters quit working.

Feb 20, 2010 | 2003 GMC Yukon XL

2 Answers

2004 yukon driver seat motor stays on when you turn off the


May have a bad door switch or bad relay.... Get the seat where you want it and disconnect the harness under the seat till you can get it repaired....

Feb 14, 2010 | 2004 GMC Yukon

1 Answer

Our Driver Seat Heaters and passenger seat will turn on for 2 sec


When this was happening on my Envoy it ended up being the seat heaters control module that was going out. About $600 a seat on mine. Just wish my repair center found that out before they replaced the seat heaters twice.

Nov 13, 2009 | 2003 GMC Yukon Denali

1 Answer

SEAT HEATERS WONT STAY ON


The seat heaters are designed to heat up and once they hit a preset temp, they turn off. That said, if your won't stay on for even two minutes then you will have to replace the seat heater relay. The part is available at GMC dealerships and some auto parts stores.

Nov 13, 2009 | 2005 GMC Yukon

4 Answers

Heated seats won't stay on in 2004 GMC Yukon Denali


See GM TSB 05-08-143-001, If you have Adjustable pedals, especially if they don't work with the memeory buttons, but function with thier own buttons. Its the Brake Pedal Position Sensor is shorted and mesing up the seat module which controls the heaters too. My 05 Suburban had the same issue

Jan 30, 2009 | 2001 GMC Yukon Denali

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