How to protect iPhone from Heat Damage?

While I have not seen here where the back glass cracks due to heat, there is significant damage to your phone that can occur if left in a car that is over 113 degrees F. Apple clearly states to not leave the phone in a car where the temperature could exceed that limit. It is expected to shorten your battery life.

Store your device where the temperature is between -20º and 45º C (-4º to 113º F). Don’t leave your device in your car, because temperatures in parked cars can exceed this range.

If your iPhone or iPad gets too hot or too cold - Apple Support

iPhone operating temperature is 32-95 degrees Fahrenheit.

Cars can reach 180-200 degrees Fahrenheit.

it is why you shouldn’t leave babies, pets or iPhones in cars.

Hello~ It’s entirely possible and not recommended for many reasons. To view some others…click on below…

If your iPhone or iPad gets too hot or too cold - Apple Support

~Katana-San~