Question

Underinflated tires flex too much and build up heat, which can lead to tire blowouts.

Answer 1

Driving on under-inflated tires is very dangerous. If tires pressure is too low, too much of the tire's surface area touches the road, which increases friction. The more friction you have, the more heat is applied to the tires. Then, too much heat will make them overheat which can cause tread separation and, yes, blowouts. Therefore, the answer is true.