Hummer Central Tire Inflation System.

Central tire inflation.

This unique feature allows you to inflate and deflate the tires on your Hummer while you are driving. Changing the tire inflation of your Hummer to accommodate different terrain greatly increases its mobility and comfort both off-road and on.

With the flip of a dash mounted switch, air is pumped to the front tires, the rear tires, or all four tires at once. Pressure is monitored by a dash mounted pressure gauge.