What does rear mean in car air conditioning?
2 Answers
In car air conditioning, rear refers to the rear windshield defogging function. Here are the methods for defogging the rear windshield: 1. Open windows for convection - slightly opening both side windows creates air convection between inside and outside the vehicle, reducing temperature difference and gradually eliminating fog; 2. Use the air conditioning system - simply select the appropriate gear to utilize the air blown from the AC for defogging; 3. Apply professional defogging spray - spraying it on the inner surface of the car glass and wiping clean can remove dirt while forming a protective film to prevent moisture condensation; 4. Use dishwashing liquid to prevent fogging.
REAR on a car's air conditioning system refers to the rear-facing AC unit. Taking my SUV as an example, there's a REAR button on the AC panel—pressing it turns the rear vents on or off. When driving with family, kids and elderly passengers in the back often complain about being too hot or cold. Activating the REAR function allows the rear fan to operate independently, providing more targeted airflow than the front AC. Especially during long summer trips, not using REAR can make the rear seats stuffy, leading to passenger complaints that distract the driver. Operation is simple: after starting the car, press the REAR button and adjust the fan speed—no need to tweak front temperature settings. Most car models have this feature, with MPVs and SUVs being more likely to include it. I find this function incredibly practical for maintaining even cabin temperature, preventing constant complaints from rear passengers. Regular use incurs no extra maintenance cost—just avoid pressing the button too forcefully. Overall, it significantly enhances comfort during family trips.
