Why does your phone get as hot as fire when you leave it in your car? Learn how to prevent it.
- bySherya
- 04 Aug, 2026
Tech Tips: If it is necessary to use the phone, then it can be kept near the AC vent of the car so that it gets mild cool air.

(Why does your phone get hotter when you leave it in the car?)
Tech Tips: Smartphones are essential for most people these days. People use them frequently, especially while traveling. Consequently, it's often observed that a phone overheats when placed in a car. In such an environment, if the smartphone is placed on the dashboard or charging, its temperature rises rapidly. Continued overheating can negatively impact the phone's battery, screen, and other hardware. In many cases, the risk of the battery swelling or damage also increases. However, with a few simple steps, you can avoid these problems.
Use AC air properly
If you absolutely must use your phone, place it near the car's AC vent to provide a mild cool breeze. This helps regulate the phone's temperature. However, avoid exposing the phone to very cold air continuously. Sudden temperature changes can cause moisture buildup, which can be harmful to the device.
Removing the thick cover can also be beneficial.
For your information, most mobile covers are made of silicone or plastic, which hinder the phone's heat dissipation. If your phone is overheating inside a car, removing the cover for a while can allow the heat to dissipate easily and the phone to cool down quickly.
Never expose your phone to direct sunlight.
The biggest mistake people make is placing their phone on a dashboard mount, where it's exposed to direct sunlight. The combination of bright sunlight from the windshield and the heat from the dashboard can quickly raise the phone's temperature.
If it is necessary to use the phone for navigation, then try to keep it in a place where direct sunlight does not reach it.
Avoid gaming or running heavy apps.
The temperature inside a car is already high. Playing games, editing videos, or running other heavy apps puts the phone's processor to work harder, further increasing the temperature. If you must use your phone while traveling, limit it to essential apps like maps or music.
Avoid charging in the car unless necessary.
Additionally, the phone itself heats up while charging. If the temperature inside the car is also high at the same time, the likelihood of overheating increases significantly. Wireless charging, in particular, generates more heat than regular cable charging. Therefore, it's best to avoid wireless charging inside a car during hot weather.
Keep the screen brightness low.
The phone's display also generates a lot of heat. If you're using navigation, keep the screen brightness as low as necessary. This will reduce battery consumption and reduce the phone's heat.
Turn off unnecessary features.
Now, let us tell you that when not needed, turn off Wi-Fi, Bluetooth, Hotspot, and any extra apps running in the background. This will reduce the pressure on the processor and reduce the heat loss of the phone.
Don't forget your phone inside your car when you leave it.
Just as it's not advisable to leave children or pets in a car during the summer, it's also not advisable to leave your phone inside. The temperature in a closed car can be extremely high, potentially damaging the phone's battery and other components.
What to do if the phone starts overheating
If your phone feels too hot, stop using it and place it in a cool place away from direct sunlight. If necessary, turn off your phone for a while. Avoid suddenly exposing your phone to the refrigerator or ice, as sudden temperature changes can damage the device.





