Which is for cooling, HI or LO on a car?

[AriannaLynn]

LO is for cooling. Here are the details: LO is the abbreviation of the English word 'LOW,' meaning 'low.' Therefore, when the car's air conditioning panel displays LO, it indicates that the air conditioning is in the lowest temperature cooling state, and the vehicle's air conditioning system is working at full capacity to cool. On the other hand, HI is the abbreviation of the English word 'HIGH,' meaning 'high.' When the air conditioning panel displays HI, it means the air conditioning is working at full capacity to heat, typically at 30 degrees Celsius. In this state, the air conditioning transfers heat from the engine coolant into the car's interior. Of course, if the vehicle is in a cold state, heating may be affected, but once the water temperature rises, heating will return to normal.