Some owners of 2014-2015 Buick Verano vehicles may complain that the HVAC intermittently only blows cold air at operating temperatures, even when the controls are set in the warmest position. On dual-zone vehicles, this concern could only be on one side or both sides.
Start the engine and warm to operating temperature. Adjust the controls to the coldest position for 20 seconds. Then adjust to the warmest setting. Cycle the temperature from coldest to hottest position three to four times. If this corrects the concern, replace the affected temperature valve actuator. If this does not correct the concern, inspect the HVAC temperature door for any binding or obstruction. If the temperature actuator valve must be replaced, use P/N 13372987.
About the Author
Mike Mavrigian
Motor Age Editor
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.
Information courtesy of Mitchell 1
Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.