"Underinflated tires" means that the air pressure inside the tires is too low or not enough.
Sentences with «underinflated tires»
Why risk accidents, accelerated tire wear, wasted gasoline and overall safety by driving on underinflated tires. (myimprov.com)
It was thought that many of these Ford Explorer crashes were a result of underinflated tires. (bestride.com)
Because underinflated tires increase the risk of a car crash, Goodyear has recalled the tires to prevent potential automobile accident injuries. (cochranfirm.com)