1998 Cadillac Deville Service A/C System

Tiny
MACKB
  • MEMBER
  • 1998 CADILLAC DEVILLE
  • V8
  • 2WD
  • AUTOMATIC
  • 95,000 MILES
How Do I Re-Set the Service A/C System Message
Saturday, August 29th, 2009 AT 5:25 PM

1 Reply

Tiny
FACTORYJACK
  • MECHANIC
  • 4,159 POSTS
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.
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Sunday, August 30th, 2009 AT 11:08 AM

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