Car key is very important for cars，Without it, there is no way to open the door，But such a mini -car key can not only lock and unlock the car，It also has many hidden functions，Let's take a look together。

1. Only open the door of the cab

The remote control keys of many cars are just pressed，Can only open the door of the cab，Only press 2 times，Only open all doors。Some female drivers pick up cars in remote parking lots，Because you can only open the door of the cab，It can prevent bad people from getting on the car from the back seat of the vehicle or the door of the co -pilot seat。So say，This life -saving function is really precious。

2. Close the car window after the fire

After the car is stopped，Direct flameout，Then pull the hand to brake and get out of the car。But looking back at，seabet myBut it is found that the window or sunroof is not related。What will you do at this time? It must be back in the car，Open the ignition switch，Then close the window、Sky window，Re -lock the car away。Is it troublesome?

In fact, after the car is turned off，As long as the lock key of the remote control key is long pressed，The glass of the car、The sunroof will be closed automatically! There are also cars，Just use the remote control lock function，All windows will automatically rise and close。Is this function too practical，It is simply the gospel of Ma Daha!

3, automatically open trunk

There will be a trunk button on the remote control key of many models (can also be said that most models are equipped with this function)，Long press the trunk unlock key (some cars are pressed two times)，The trunk will open automatically。If it happens to be shopping from the supermarket，Holding a big bag on my hand，It will be very practical at this time，You can provide a lot of convenience。

4. Find a car in the parking lot

If the car loves the car for a while，There is a key on the car key to help you。For example, go to the mall to shop，Park the car in the underground parking lot，Results Come back to pick up the car，Need to look for the world，How can I find the dim light。Don't panic at this time，Want to find your own car，Just find a red button on the car key，Press it to make the car make a sound，This is easy to get back to love the car。

5, remote control opening

In the hot summer，The car is parked under the sun，The temperature in the car will be as high as 60 ° C，If you can enter the car，Open seabet loginthe windows and heat up，That will feel much better。Of course，Some luxury models，It is the function of remote control to start the engine and even air conditioners，Don't be discouraged，Your ordinary household car，Maybe it can also。Try it，Long press the unlock key for several seconds，Will 4 windows open together?

6. Children's safety lock

If you have a child, you must take a good look at，Especially for the active children，Simple car locks are still unsatisfactory factors。If you take your young children out，It is best to use a child safety lock，It is mostly located on the back door of the car，Some also need your mechanical key to lock。Lock the door like this，It cannot be opened from the inside; you outside the car，You can open the door with a pull，Convenient to take care of children at any time。

Precautions for the use of car key

A, ordinary key :

1、After the fire，To open the key immediately, don't twist again，Otherwise, it will damage the engine leather bar。

2、Do not with other keys、The jewelry hangs together，Otherwise, if you drive back and forth when you drive, the gap between the keyhole will gradually become larger，Starting vehicle is prone to problems。

b: Smart key:

1、Don't put together with the electronic device，Smart key uses low -strength radio waves,With a magnetic field interference, it may not work properly。

2、Don't throw it around，Smart Key internal lines are weaker in resistance,It is easy to damage when encountering a fierce collision。