Cadillac: 91 el dorado, cadillac el dorado, compresor

Question
i have a 91 cadillac El dorado and am having problems with my a/c my "driver information center" is displaying the message LOW A/C REFRIGERANT-A/C COMPRESSOR OFF i've since fix the problem by refilling the refrigerant and replacing the compresor. But the message keeps displaying and the a/c is still not working what should i do i was told i had to reset the computer but i dont know how to can you help

Optional Information:
1991 Cadillac el dorado 4.9L v8

Already Tried:
replaced the refrigerant and compressor  

Answer
On your A/C - Heater control panel locate the OFF and WARMER buttons.

1. Ignition ON, Engine OFF.
2. Simultaneously push the OFF and WARMER buttons for 2
  seconds and then release them.

3. As soon as you start to see numbers appear push and
  hold the OFF and HIGH buttons simultaneously for 2
  seconds and release them.

4. wait 5 seconds and turn OFF the ignition.

5. restart the vehicle and see if the light has gone off.

Let me know.


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