Whenever you lose your keyless entry remote and buy a new one, you have to program it for your particular car. You may also have to reprogram your remote if it's been reset by interference from an electronic device such as a toll booth signal or other electronic signal. Don't panic, it's relatively easy for you to program your device, provided you own a car that has a self programming system. If not, you'll need to have it programed by the dealership or a qualified automotive locksmith. Either way, you're not far from a solution.
Check the batteries on your remote. If the signal has stopped working, it might be time for a new set. You can buy them at an auto parts dealer, electronics store as well as most drug and department stores. Buy a watch battery, such as a CR 2025, remove the remote cover and exchange batteries. Test your remote to see if this solves the problem.
Consult your owner's manual which will have the procedure for programming both your car's keyless entry remote and any extra coded keys you may need to program as well. Programming remote entries and keys varies from brand to brand, so if you cannot find the instructions in the owner's manual, call the dealership and ask or consult an online database such as Program your Remote.com.
Enter your car and follow the programming directions. Most involve putting the key into the ignition and turning it to the "On" position and back again in a specific time-related sequence to set up the programming mode. When in this mode, you need to press the buttons on your keyless remote and wait for the car to signal that it is programmed with a chime.
