HVAC Control Knobs Inoperative After Remote Start - keywords ac a/c air code condition control controls diagnostics head HVAC inoperative knobs remote RVS start

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

HVAC control knobs become inoperative following the remote start event. This condition may result from HVAC control locking up at key entry.

To resolve this issue, reprogram HVAC control module with the latest calibrations.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.