Five Things Everyone Makes Up On The Subject Of Key Repair

How to Repair a Remote Key
Although most remote key fobs come with an impressive battery lifespan, they eventually degrade. Sometimes it's simple to replace the batteries in the device but sometimes the problem can be more serious.
Remove the remote from the unit and clean the buttons. Then, flex them out and in. car key and repair may be all you require to get your key fob working again.
Battery
If the fob is still functioning you can replace the CR2025 or CR2032 battery. If not, you can look at the battery terminals and buttons to determine if they are any parts that are loose. try what she says can usually connect the terminals and buttons back into place. However, you'll be required to know which type of battery is installed in your fob.
If you're not sure if the battery is the issue Try using a backup key fob and see whether you are able to unlock or start your car using it. If you're able to do so, it's probably time to replace your primary fob. If it doesn't then you'll require a professional to examine it to find the problem. It could be as simple as reprogramming, or it could require other types of repair. You might also discover that your car has lost the fob. This isn't something you can fix by yourself.
Case
The case of a remote key is the outer plastic housing and typically comes with the button pad that is replaced. It is essential to choose a new case, as the original will probably be pretty grungy and it is crucial that the circuit board is placed correctly in the case. The circuit board is responsible for controlling the function of the key fob. You can test it by using a multimeter set to RF (radiofrequency) mode, and a radio scanner that is tuned to the same frequency as the key fob.
Another thing to examine is the contact points for buttons on the keypad, which could have become loose or broken over time. Soldering them back into place will often allow them to return to full functionality, except if they break completely.
Buttons
IF your key fob buttons no longer work or are difficult to press you may need a dorman or motormite key housing replacement for your remote can be bought inexpensively online for the year, make and model of your. Then, you can slide the circuit board out of your old case into the new. On some models you may have to move the board slightly. The black contact points of buttons can be adhered to using aluminum foil and double-sided tape.
Programming
The key fob and receiver in your car are linked, but this connection can be damaged. A professional will inspect the vehicle to determine the make model, year and model. They will use specialist equipment to re-pair or program a blank fob or transponder chip (or make a key replica should this be possible). They will then test the remote to ensure that it functions.
When reprogramming blank keys it is crucial to take care. The process is complicated and each manufacturer offers distinct instructions. It is easy to miss a crucial step or wait too long before exiting the programming mode. To minimize the risk of causing damage to your vehicle it is recommended to hire a professional who has extensive knowledge of the security system in your vehicle. Certain key programming tools can also be capable of reading diagnostic trouble codes from your vehicle, which could help repair or troubleshoot additional issues.