KNOW YOUR VEHICLE

SENTRY KEY

~1min read

The Sentry Key immobilizer system prevents unauthorized vehicle operation and engine shutdown. The system does not need to be armed or activated. The operation is automatic, regardless of whether the vehicle is locked or unlocked.

The system uses a key fob, keyless ignition and a radio frequency (RF) receiver to prevent unauthorized vehicle operation. For this reason, only key fobs programmed to the vehicle can be used to start and operate the vehicle. The system cannot reprogram a key fob obtained from another vehicle.

After the ignition switch is turned to the ON/RUN position, the vehicle security light will illuminate for three seconds as a bulb check. If the light remains on after the bulb check, this indicates a problem with the electronics. Also, if the light starts flashing after the bulb check, this means someone has attempted to start the engine with an invalid key fob. If a valid key fob is used to start the engine but there is a problem with the vehicle electronics, the engine will start and then shut off after two seconds.

If the vehicle security light comes on during normal vehicle operation (vehicle running for more than 10 seconds), this indicates a malfunction in the electronics. If this occurs, have the vehicle serviced at an authorized dealer as soon as possible.

All key fobs supplied with your new vehicle are programmed to the vehicle electronics.

Test yourself

A quick Dodge Charger quiz: every answer comes with an explanation and a link to the manual page.