The fix: GM dealer technicians are instructed to reprogram the K33 HVAC Control Module with updated software in order to correct the issue. Affected components: HVAC Control Module (RPO code K33).

Hard reset as in disconnecting the 12-volt battery or replacing the HVAC control module. The number of warranty claims grew to 75 as of September 21st.

Affected components: HVAC control module software. Affected vehicles: 2018 Chevy Equinox Number of affected vehicles: GM did not say how many vehicles are affected by this problem.

According to Chrysler, the problem only afflicts vehicles with dual-zone or three-zone manual temp systems built on or before May 23, 2014, and is most likely due to software gremlins in the HVAC ...

Corrective action: Dealers will reprogram the heating, ventilating, and air conditioning control module. If a door actuator is found to be damaged, it will be replaced, as well.

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