How to Install a Keyless Entry System

A remote keyless entry system lets you lock and unlock your doors, open your trunk, or even turn your engine on, all from a distance.  Increasingly popular, it won’t be long before a keyless entry system will be standard on all automobiles. If you do not already have one, it is moderately easy to install, although some believe only a qualified professional should attempt the procedure.

Before attempting to install your remote keyless entry system, you should research the make and model of your car. You can find out which systems work best with your car, and see if installing a system voids any warranty you may have. Every car is different and you should not skip this step. Professionals recommend contacting your dealer to see about factory installation.  Experts also suggest the technical demands may be above the capabilities of most drivers. Look for an encrypted system as these are less vulnerable to thieves. This is especially important for systems that will start your car's engine.

After getting your remote keyless entry system, read the instructions.  This is important!  Every system comes with them or can be found online. 

The keyless entry system can then be implemented into a key or can be a separate remote control.  Most drivers carry this remote control, usually referred to as a fob, on their keychain because it is responsible for the various functions. The keyless entry works by sending radio frequency signals from the fob to the receiver in your car. The car system receives the signals as small pulses, interprets and then performs the task.

Basic Instructions for Keyless Entry

• Put the key in the ignition and turn the key rapidly from off to on eight times within 10 seconds, ending in the on position.  The electric doors should lock and unlock to confirm the car is in programming mode.


• Press any button on the original keyless entry remote. The electric locks will again lock and unlock to confirm the remote is in program mode.  


• Press any button on the new remote you are programming.  The electric locks will lock and unlock a third time confirming the new remote has been synced to the car.


• Turn the ignition to off. The electric locks will lock and unlock a final time to confirm the end of programming mode.