On Cryptids Island to let the air out you must first offer to help the gentleman. Click on the truck tire and click down on it til enough air comes out. He will then reward you for your kind being and thoughtfulness.
let some air out of the tire
If you're talking about the guy on Cryptids island, then click on hhis left tire and let all the air out.
talk to the guy by the truck, then click the tire and press down the valve and let the air go out and that's all.
The time it takes to let air out of a tire depends on the size of the tire's valve and the pressure inside the tire. Generally, it can take a few seconds to a minute to fully deflate a tire.
deflate
Stand outside vehicle with remote in hand. Remove all the valve stem caps from all 4 tires. Push the door unlock and lock buttons at the same time until you hear the horn beep. Moving rather quickly, start to let the air out of the drivers front tire by depressing the air valve until you hear the horn beep, then move on to the passenger front tire and do the same, then the passenger rear tire, then the drivers rear tire, then you are done with the reset procedure. Refill tires with the correct air pressure as stated on the drivers door jamb.
let the air out of his tires
Press down on the small needle in the center of the valve (the little tube that sticks out of the tire) to let air out, you can do this with a screwdriver, just be careful not to puncture it.
Click on the left front tire and then click on the knobish thingo and it will let air out.
Deflate is to allow air to escape from a balloon.
deflate
The tire will go flat.