Air conditioner compressor shut-off when engine is heavily loaded

Subaru Forester / Subaru Forester 2012-2019 Owners Manual / Climate control / Operating tips for heater and air conditioner / Air conditioner compressor shut-off when engine is heavily loaded

To improve acceleration and gas mileage, the air conditioner compressor is designed to temporarily shut off during air conditioner operation whenever the accelerator is fully depressed such as during rapid acceleration or when driving up a steep incline.