What does the REST in a car mean?

[DelReed]

REST button is the residual heat utilization function of the air conditioning system, which can provide heating for a period of time after the engine is turned off, and then automatically shut down. It is a kind of heat preservation for the car. When the vehicle is started again, there is no need to turn on the air conditioning system, just heat the interior temperature. The following are the precautions for driving in winter: 1. Be sure to warm up the car before driving in winter. The engine oil flows back to the bottom due to gravity. If the car is suddenly started, the oil cannot flow up in time, and the engine cannot be fully lubricated, causing wear. 2. Check the remaining amount of engine oil on time. If it is found to be inexplicably missing, repair it in time, because in winter, the engine is prone to burning oil, which causes a large amount of carbon deposits in the engine. 3. The tire pressure in winter should be about 0.2 higher than the standard pressure, because the thermal expansion and contraction in winter will cause tire wear or insufficient tire pressure, which will affect tire wear and driving experience.