We removed a mouse nest and replaced cabin air filter. The problem developed around that time
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2003 Toyota Highlander Question: Driver's side AC does not blow cold air. Passenger's side does
Answer #1Chevy Power August 08, 2012, 12:51Journeyman
The mouse may have damaged the vent control door or module.
Answer #2ziptie12 August 09, 2012, 21:17Master
Not sure about toyota , but if it has 'dual zone' temp controls low refrigerant can cause that problem in some vehicles.Would be a strange coincidence. Did you find any mice high on R-134?