Question about 2005 GMC Yukon

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2005 GMC Yukon air conditioning

The vehicle has a two-zone heating/air system. With the a/c on, the rear vents are producing cool air while the front vents produce only heat.

What is the solution to this problem? Thanks.

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  • mrtprop Aug 04, 2008

    A/C One side blows hot at 60 degrees set, other side blows cold at 60 degrees?? 2004 GMC truck

  • cadcom Aug 08, 2008

    I have a 2004 Yukon - same problem. Has anyone found the cause?

  • YCOUG Aug 12, 2008

    I have the same problem with my 2004 yukon xl. The battery died and I replaced with a new battery and then the a/c develop this problem. I don't think that has anything to do with it.

  • cddfamily Aug 25, 2008

    2001 yukon - same thing - ac blows only max heat independent of settings. have pulled the fuse and disconnected the battery in the past to fix the condition, but it seems to be random whether this resets the controller or not.

  • manetta30 Sep 02, 2008

    My 2004 Yukon will blow ice cold everywhere except the driver's side blows HOT! This happens randomly and I have to pull over and turn off my car. When I start it back up it is fine.

  • johnnyyukon Sep 05, 2008

    I woke up to a dead battery this morning in a 2005 yukon, no idea why....replaced it & no I have cold in drviers, hot in passenger....restarted....left for a while....set to auto....adjusted all setting nothing helped....

  • bns66charger Sep 21, 2008

    ON my wife 2005 Yukon xl the a/c will go from blowing cold air to hot. After shutting off the vehicle and restart it the problem goes away. Plus just yesterday when she turned on the heater barely warm air came out. Any help out there with this problem wouldbe greatly appreciated.

  • Anonymous Dec 16, 2008

    My '03 Envoy only blows hot air through driver side dash vents, everywhere else is ice cold including when I put the vent on dash and floor for driver side or any other combination. Also when other dash vents are open the air flow is really low no matter what the flow setting is

  • tanlin Dec 22, 2008

    Periodically the drivers side compartment blows cold air (2005 YukonXL), while rest of the vehicle is in 70 degree confort, my legs/feet are frozen. What gives?

  • komtek Dec 30, 2008

    2001 Yukon heater blew cold air today. I turned the fan up full blast and the heater worked, turned the fan down and it was cold air what gives? Something wrong with a valve or something. Anybody know?

  • Anonymous Apr 25, 2009

    2004 2500 chevy blows hot air drivers side cold air pass. side

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5 Answers

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This just happen to me 2005 denali; dead battery in the morning, replaced it...and I have cold on drivers & screaming hot on passenger...is there a fix posted....& I just dont see it?? what gives?

Posted on Sep 05, 2008

  • bcombs171 May 04, 2011

    I have the same problem...dead battery was charged and now I have heat on drivers side that cannot be shut off.

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In the middle of the passenger side just under the dash on the heater there is a motor that adjust the air flow. Take it out and manually open the flap. Both sides get the same temperature but I can drive mine in the winter now.

Posted on Mar 15, 2009

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I have an 04 yukon, same issue, the quick fix someone else spoke about does work, but for how long, i dont know, quick fix: remove 40 watt green box looking fuse from under the hood for at least 10 minutes, check owners manual, should say blower, i also took out the heater/ac and hvac fuses from the side dash fuse box, mine were 30 and 10 watt, after 10 minutes, i replaced these fues and for now my ac has been working fine, but now i cant get the heater to work on the driver side, but honestly, i live in louisiana, so no heat is not an issue for me,

Posted on Sep 06, 2008

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I have 2004 sierra 3500 and I'm having truble getting the heat to the floor or face it seems like it's not dividing any answer for me please and thank u

Posted on Nov 18, 2011

Hey folks, my understanding is there is a 'technical bulletin' for erractic AC vent behavior for 2004-2005 Yukons. This is not necessarily a warranty repair, so ask your dealer for further details.

Posted on Sep 17, 2008

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Tips for operating Air conditioning system on Toyota Hilux and someother...


To cool off your Toyota after it has been parked in the hot sun, drive with the windows open for a few minutes. This vents the hot air, allowing the air conditioning to cool the interior more quickly.

Make sure the air intake grilles in front of the windshield are not blocked (by leaves or snow, for example).

On humid, do not blow cold air on the windshield. The windshield could fog up because of the difference in air temperature on the inside and outside of the windshield.

Keep the area under the front seats clear to allow air to circulate throughout the vehicle.

On cold days, set the fan speed to high for a minute to help clear the intake ducts of snow or moisture. This can reduce the amount of fogging on the windows.

When driving on dusty roads, close all windows. If dust thrown up b the vehicle is still drawn into the vehicle after closing the windows, it is recommended that the in intake be set to FRESH and the fan speed to any setting except "OFF".

If following another vehicle on a dusty road, or driving in windy and dusty conditions, it is recommended that the air intake be temporarily set to RECIRCULATE, which will close off the outside passage and prevent outside air and dust from entering the vehicle interior.

HEATING

For best results, set controls to;
Fan speed ---- Any setting except "OFF"
Temperature----Towards WARM (red zone)
Air intake ---- FRESH (outside air)
Air flow ---- FLOOR
Air conditioning ---- OFF

For quick heating, select recirculated air for a few minutes. To keep the windows from fogging, select fresh after the vehicle has been warmed.

Press the "A/C" button on for dehumidified heating.

Choose floor/windshield air flow to heat the voltage interior while defrosting or defogging the windshield.

AIR CONDITIONING

For best results, set controls to;

Fan speed --- Any setting except 'OFF"
Temperature --- Towards COLD (blue zone)
Air intake --- (outside air)
Air flow --- PANEL
Air conditioning --- ON

For quick cooling, move the air intake selector to recirculate for a few minutes.

VENTILATION

For best results, set controls to;

Fan speed --- Any setting except 'OFF"
Temperature --- Towards COLD (blue zone)
Air intake --- (outside air)
Air flow --- PANEL
Air conditioning --- ON

DEFOGGING

The inside of the windshield

For best results, set controls to:

Fan speed --- Any setting except 'OFF"
Temperature --- Towards WARM (red zone) to heat; COLD (blue zone) to cool
Air intake --- FRESH (outside air)
Air flow --- WINDSHIELD
Air conditioning --- ON

The outside of the windshield

For best results, set controls to:

Fan speed --- Any setting except 'OFF"
Temperature --- Towards WARM (red zone)
Air intake --- FRESH (outside air)
Air flow --- WINDSHIELD
Air conditioning --- OFF

On humid days, do not blow cold air on the windshield. The windshield could fog up because of the difference in air temperature on the inside and outside of the windshield.

DEFROSTING

The outside of the windshield

For best results, set controls to:

Fan speed --- Any setting except 'OFF"
Temperature --- Towards WARM (red zone)
Air intake --- FRESH (outside air)
Air flow --- WINDSHIELD
Air conditioning --- OFF

To heat the vehicle interior while defrosting the windshield, choose floor/windshield air flow.

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2001 gmc yukon dual ac only ocold air coming out of front vent rear vents not blowing cold air


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