Most likely loss of refrigerant.
my drive and 3rd not working what is causing this promblem is their a a promblem with the transmission
My 2002 Olsmobile Intrique cruise control works some times when you set it, why?
cruise control went first. then the heater controls started working one minute and then off the next. It would come on and wouldn't shut off. Then the next item that started about the same time was the headlights flashing. change the ignition switch and solved all problems.
check fuse. they are all conected.
It's not fused separately - it's on the same circuit as the identification lights. If it's not working, and changing the bulb hasn't corrected the issue, then you have either a faulty light or faulty wiring.
Why is the electric coolant fan in your 1989 Oldsmobile cutlass cierra not working?
If the heater fan works on all speeds, then the blower motor, blower fuse, blower relay, and blower motor resistor pack are all good. If the fan runs but nothing comes out of the vents, you have a 'mode door' issue (which might include a bad control head).
air conditioner not working on off switch
If your wipers were froze down or stuck down when you tried to use them. It maybe the wipers are designed so that the bolt which is fastened to the fire wall backs off. try tightening that bolt and see if they do not been working again! From LHZ
Fuse, wiring, connector, drivers side window control switch.
If system was either opened or totally empty it will need to be evacuated prior to charging Is compressor running? Are control cables working properly?
Well, you can open it to find out. But mostly, you will know they are not working if the air conditioner blows hot air, or stops working all together.