Most Jeep Grand Cherokees now come with a feature known as “Sentry Key Immobilizer System” (SKIS). This feature sends a signal to the chip embedded in your car key, which is for for authentication and activation of your engine. Your Grand Cherokee comes with two preprogrammed keys, but programing an additional key is advised. If you do not have both of the original keys, you will have to have them programmed at the dealership by a specialty locksmith. With the right instruction, you can program up to six additional keys in just a few minutes. Tips Warnings Writer Bio
