1998 Cadillac Deville Service A/C System

1998 CADILLAC DEVILLE
95,000 MILES • V8 • 2WD • AUTOMATIC
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MACKB
  • MEMBER
  • 1 POST
How Do I Re-Set the Service A/C System Message
Aug 29, 2009 at 5:25 PM
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FACTORYJACK
  • ✓ASE Certified Mechanic
  • 4,159 POSTS
  • ASE Certified Mechanic
Has the fault that triggered the message been addressed? Pressing off and warmer on the climate panel will display codes after the segment check. ACM codes are for HVAC system. To clear, press fan down until ACM? is displayed, and press fan up. Press fan down until 'ACM clear codes?' is displayed, and press fan up one more time. That should do it, cycle the key to exit.
Aug 30, 2009 at 11:08 AM
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