Questions & Answers for: gmc denali heater problems

...GMC Denali - rear heater generates only cold air when fan is on. Is it an operator problem or is there a specific switch that needs to be set or is there a machanical problem? The air conditioning ...

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GMC Yukon Denali My heated seats will not stay on in my 2004 GMC Yukon Denali. The lights will come on and you start to feel heat and then they go off. See GM TSB 05-08-143-001, If you have Adjustable

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Question about 2002 Yukon Denali

1 Answer

...denali is overheating, replaced thermostat and water pump and problem persists  I haethe truck at GMC and they belive there is air in system or head Gasket needs to be replace can you please ...

my hearter fans will not turn off. when i turn my truck off. Relay for the heater fan is the most likely problem, replace the relay and if that does not fix the issue the problem could also be in the ...

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)

Question about 2001 Yukon Denali

2 Answers

...GMC Denali XL. "Service Engine Soon" light goes on. My son checked it and it it reads on his gadget: Heater Bank Sensor 1 Bank 1. How important is this to have this fixed. Right away, no rush? How ...

...GMC 1500 truck with dual heater and A/C, will stop working on A/C on the drivers side and blows heater, yet the passenger side still has A/C blowing. If I stop and turn off the key, it resets itself ...

Question about 2005 Sierra Denali

1 Answer

...gmc denali heater blower wont turn off You need to replace the blower motor resistor module.It is located on the passengers side by the blower motor.There is a bulletin for this problem.I`m not sure ...

Question about 1999 Denali

1 Answer

...denali dummy gauge turned on, vehicleoverheating gauge started to show hot, attempted to turn heater on to releave heating but heater blew cold air only. Your coolant is to low to allow heating...not ...

Denali seat heater on driver's side come on upon start up. After shutting down it immediately restarts. Cannot seem to keep it off. Bad switch or control module. You could try swapping left and right ...

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