Car tire belongs to a large and consume a great uncertainty auto parts, therefore, a qualified factory every car will be equipped with a spare tire to prepare for "contingencies." But just because the car's spare tire utilization is very low, so many people will not change a spare tire, but once the tire failure, have been very simple to replace the spare tire becomes a very difficult thing. The principle of universal knowledge, we have to make a practical exercise to replace the spare tire, but also for the majority of owners to popularize knowledge to replace the spare tire under the car.

Currently, some of the better models are equipped with a "tire pressure warning" system, once the vehicle is traveling lack of tire pressure occurs, there will be "Check the tire pressure (X side)" and the words yellow front dashboard surrounded by half exclamation mark warning label (Audi series is so, other brands are also similar).

Once such a warning appears and should immediately open double flash, then pull over secure parking, if it is at high speed, with a stop in the emergency lane should ship or an emergency stop, and get off immediately secure parking warning signs placed at the rear.

After a parked vehicle, you should first check the basic conditions under alarm tires to see whether it is a false alarm, if there is a significant loss of gas, general can look out. If necessary, you can play all major brands of telephone counseling service.

The vehicle comes to a general warning triangle in the trunk, but the location is not the same, and some spare tire and put together, and some have a concave down over the storage compartment in the rear door, and some also on both sides of the trunk recessed box, carefully looking for it, you can be found.

Warning triangle folding although a bit difficult, but little practical ability of people no problem, there are two general three lines are fixed, then put up the third point buckle up on the line. Then Triangle of four folding stand open, so warning triangle on the fold as well. But the last thing we must remember the simplicity that is reflective side facing away from the vehicle must be, otherwise it does not make sense.

Vehicles are not generally carry a ruler, but this does not matter, we are not very early ancestors taught us to use his feet to measure it? This time we can come in handy, adults generally every step is 0.75 meters, which calculate 50 meters should take about 67 steps.

During the day when the general city ring road warning signs should stand at 50 meters to the car, if it is the highway will have to establish a place in the 150 meters (about 200 steps from the adults) the car; if it is in the dark days, city ??loop trouble with your vehicle, you need to set up warning signs at 100 meters to the car, while the highway will have to set the location of 250 meters (about 300 steps away from the adults).