【Car owner's car knowledge]Car tires are a kind of auto parts that consume a lot of money and have great uncertainty. Therefore, every qualified car will be equipped with a spare tire for "contingency." However, because the utilization rate of spare tires is very low, many people do not change spare tires. Once a tire failure occurs, it is very difficult to replace the spare tire. Based on the principle of knowledge popularization, we will do a practical exercise on replacing the spare tire, and also popularize the knowledge of replacing the spare tire for the majority of car owners.
At present, some of the better models are equipped with a "tire pressure alarm" system. Once the tire pressure is insufficient while driving, the words "Please check the tire pressure (X side)" and a yellow color will appear on the front instrument panel. A warning sign surrounded by an exclamation mark (this is the case for the Audi series, and other brands are similar).
Once such an alarm message appears, you should immediately turn on the double flashing lights, and then pull over to the side to park safely. If you are on a high speed, you should park in the emergency lane or the boat-type emergency parking belt, and immediately place a safety parking warning sign behind you after getting off the car.
After stopping the vehicle, you should first check the basic condition of the alarm tire to see if it is a false alarm. If there is an obvious loss of air, it can generally be seen. If necessary, you can also call after-sales service of major brands to consult.
The warning triangle that comes with the vehicle is generally in the trunk, but the location is different. Some are placed with the spare tire, some have a concave storage compartment above the rear tailgate, and some It is also in the inner concave box on both sides of the trunk, if you look carefully, you can find it.
Although it is a little difficult to fold the warning triangle, people with a little bit of hands-on ability will have no problem. Generally, two points of the three lines are fixed. It is enough to stand up and then buckle the third point. Then fold the four brackets of the triangle, so that the warning triangle is folded. But the last point must be kept in mind, that is, the reflective side must be facing away from the vehicle, otherwise it will be meaningless.
Most vehicles do not carry rulers with them, but it doesn't matter. Didn't our ancestors teach us to use our own steps to measure very early? It can come in handy at this time. Adults are generally 0.75 meters per step, so calculate it like this 50 meters should be about 67 steps.
During the day on the general urban ring road, the warning sign should be erected 50 meters behind the car, and if it is a highway, it should be erected 150 meters behind the car (about 200 steps for adults); if it is dark, In case of vehicle failure on the urban ring road, the warning sign needs to be set up 100 meters behind the car, while on the expressway, it should be set up at 250 meters (about 300 steps for an adult).
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