Software Upgrade May Fix Climate Control System Problems on Volvo XC90

There have been problems with the climate control system not working at times. Volvo has made a Software upgrade for the AC control module is available that can correct certain climate control system faults.

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Average mileage: 105,964 (59,000–217,000)
8 model years affected: 2004, 2005, 2006, 2007, more2008, 2009, 2010, 2011
29 people reported this problem
16 people shared problem details
2007 Volvo XC90127,000
heat will not engage. blowers work AC seems to work. No heat comes from vents. but the seats get hot. Also, oil leak from AWD. Two out of five problems on one car, this is not good
2006 Volvo XC90217,000
have had same trouble with fan speed control not responding or changing force of blower on its own - told I need new climate control module and software upgrade for approximately $1800 in part(s) and labor. Haven't done it yet as I as trying to find out if way of getting software upgrade without replacing climate control module to see if that fixes it (if you can even get such an upgrade without getting a new part/module??).
2006 Volvo XC9098,000
Fan stays on all time
2004 Volvo XC9080,000
blower motor stop working
2004 Volvo XC90124,000
fan speed button on the climate control stopped working
2005 Volvo XC9072,567
the climate control fan, i can not stop.
AC goes from blowing cold air to regular air then recently does not blow any air at all
2010 Volvo XC9078,000
Fan cuts on when the Volvo XC 90 is turned off. Not sure of precisely the scenario in terms of how the system was set prior to turning off the car, but this is clearly a bug somewhere.
2004 Volvo XC90175,000
Ace comes on blows cold air then starts blowing regular air. Ace is charge. no leaks
2008 Volvo XC9080,000
I have had the system recharged and then took car back for them to check again, they could not duplicate the problem.. so did nothing. Happening again now and will return to dealer this evening. No solution -
2004 Volvo XC90188,000
Fan will run when car is off climate control fan
2011 Volvo XC9059,600
Blower motor stopped working. Still get air thru ducts if car is moving and recirc is off. Hoping it's a software thing but not holding my breath. This Volvo was purchased overseas with the military purchase program and we've had multiple problems (The mirror computer was completely replaced TWICE within months of purchase, etc). This is the first major problem out of warranty.
2004 Volvo XC90152,000
Blower and A/C work Great. NOOOOO HEAT
2007 Volvo XC9080,000
Ac stops at times and comes back randomly
2004 Volvo XC9091,000
After driving 2 hours on highway in very hot day 100+ F. Blower speed control stop working. Blower start working in two stages off or full speed. During couple hours stop, after ignition off, blower did not stop and was working all time (2 hours). While next 1 hour drive temperature control stop working. Was stuck on cold. AC on/off button was working.
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