Smart keys are not uncommon from new models of foreign cars, and many have already become possessors of this extremely comfortable thing. However, like any electronic equipment, such keys need energy, and therefore in its source, that is, the battery. And, despite the fact that energy they spend at least, sooner or later the question of replacing the battery. And here many are waiting for not too pleasant opening - the key is not so easy to open, as it may seem at first glance.
1
Carefully read the instructions for a smart key, if any. Many keys have the necessary opening compartments to shift the batteries. If you do not have instructions, then carefully inspect the key to the presence of clamps, levers or buttons that can open the key. In the folding keys, such a button can be in the inside, then you can press it with a screwdriver. After performing this action, open the roof and replace the nutrient element - most often it is a flat round battery.
2
Some keys do not provide an independent replacement of batteries. Their manufacturers prefer to change the key entirely that there are considerable money - about 4-5 thousand. But in this case, the battery in the key can be replaced. True, most likely the key after the discovery will have to glue. Take a flat knife, tear it into the line, on which the parts of the key are connected, and carefully break the sash. You may be able to open the key, not breaking the clamps, but if it happened, after changing the battery, just glue parts of the key back.
3
Most often in smart keys are used conventional lithium batteries, flat, round, reminiscent tablets. True, they can be different diameter, so if you are not sure which battery is in your way, it is worth buying a new one, having the original to compare in place. There are keys with a battery that is charging directly in the car, this function allows not to replace the batteries for a very long time.
4
There is a danger that after changing the battery, the smart key "will forget" settings. And it will have to re-"bind" to the car. And this is possible only if there is a second smart key, whose relationship is not broken with the car. In order to "register" the key, you need to produce simple actions: Insert the work key in the ignition and turn, delay the key for a couple of seconds, turn it back. Pull out the ignition, click the "Anlok" button, and then the "Lock" button three times. Take the key that has lost the "binding" and do the same procedure in the reverse order. That is, first press the "Unlok" and "Lock" buttons, and then insert the key to the ignition lock, turn it up for a couple of seconds, return to the original position and pull out from the ignition. After that you will have two programmed keys.
5
If after inspecting the key still did not understand how it can be opened, refer to the help of the Internet. Dial the name and year of release of your car in the search engine and enter the request, how can I replace the battery on your specific smart key model. If you do not find a response, and you also have no second key for programming the discharge, then you should contact the car service or to the dealership for replacing the key completely.
Smart keys are an extremely useful thing, at the moment, the most efficient protection against theft. Therefore, do not forget to change the nutrient elements on time, it will allow you to protect the car, and to avoid unpleasant moments yourself when you suddenly cannot open and start the car.
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