One problem related to air conditioner has been reported for the 2012 Honda CR-V. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Honda CR-V based on all problems reported for the 2012 CR-V.
The heater/defroster failed to operate as it had in the past on December 6, 2013. Previous to that date the air conditioner failed to cool properly starting in August, 2013. Hazy white material coated the inside of the windshield requiring constant wiping so we ceased using the air. Over a several week period in fall 2013 the left side heater/defroster failed to heat the left side of the car and the windshield defroster failed requiring us to stop the car and wipe the outside of the left side of the windshield. The right side of the cabin heater blew some hot air and some hot air reached the inside of the windshield. The dealer service manager at schaumburg Honda listened to my complaint and after severral minutes returned to tell me all operations were normal and I needed to use the recirculation to equalize cabin temperature. I immediately traded the car since the windshield was unable to defrost and cabin to heat. Search google under " heater on Cr-v doesn't work" to see multiple stories of same an videos of attempts like mine to work heater/defroster complaints.