Defrost no longer working or switching modes - GMC Terrain Forum
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post #1 of 3 (permalink) Old 09-29-2019, 12:49 PM Thread Starter
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Defrost no longer working or switching modes

After having battery disconnected for a couple of months the heater setting don’t switch properly and especially the defrost
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post #2 of 3 (permalink) Old 09-29-2019, 01:05 PM
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See link in post #2

2014 Equinox LTZ FWD 3.6L. V-6 (LFX)
GM6T70 Transmission-Gen II(M7W)
Crystal Red Tintcoat-Brownstone Leather-(FE2) Suspension-18" Wheels
Build Date: Nov. 04, 2013-Delivery Date: Nov. 25, 2013
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post #3 of 3 (permalink) Old 09-29-2019, 03:04 PM
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Turn off the HVAC controls with key in run position, not start position. Then turn the key off. Disconnect the battery and wait 15 mins or so to discharge the RAP power. Reconnect the battery, start the car and retry the HVAC to see if it resynced.

2013 Nox 2.4L 1LT AWD from western PA.

Last edited by 13nox; 09-29-2019 at 11:23 PM. Reason: grammar
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