A phone connected to CarPlay or Android Auto doesn't just send images to the car's screen. It builds a route, updates maps, receives data over the network, plays sound and maintains a connection with the car. If wireless and wireless charging are turned on at the same time, the device generates more heat. WIRED has compiled practical ways to reduce your workload. The simplest thing is to remove your phone from direct sun and do not leave it in a hot car. If a cable is available, a wired connection may be cooler than a wireless one, but continuous charging can also heat up the battery.
It is useful to download maps, music and podcasts in advance: then on the road the phone has less access to the mobile network, especially where the connection is weak. When connecting wirelessly, you can dispense with the charging pad if the battery capacity allows it. When charging is necessary, it is worth monitoring the temperature and location of the phone; The flow of cool air from the deflector sometimes helps. Charge Limit is supported on some models, but the location of the setting varies by device. This is not a new feature of CarPlay, nor is it evidence of a breakdown: the heat is caused by a combination of several common tasks. If your phone gets so hot that it issues a warning or stops charging, it's best to stop the load and let it cool down without taking your eyes off the road.