Sentry Key - RAM 2013 CHASSIS CAB 3500 Owner's Manual

SENTRY KEY

The Sentry Key Immobilizer System prevents unauthor-
ized vehicle operation by disabling the engine. The
system does not need to be armed or activated. Operation
is automatic, regardless of whether the vehicle is locked
or unlocked.
The system uses a Key Fob with a factory-mated Remote
Keyless Entry (RKE) transmitter and an Ignition Node
Module (IGNM) to prevent unauthorized vehicle opera-
tion. Therefore, only Key Fobs that are programmed to
the vehicle can be used to start and operate the vehicle.
The system will not allow the engine to crank if an
invalid Key Fob is used to start and operate the vehicle.
The system will shut the engine off in two seconds if an
invalid Key Fob is used to start the engine.
NOTE: A Key Fob that has not been programmed is also
considered an invalid key.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 19
During normal operation, after turning on the ignition
switch, the Vehicle Security Light will turn on for three
seconds for a bulb check. If the light remains on after the
bulb check, it indicates that there is a problem with the
electronics. In addition, if the light begins to flash after
the bulb check, it indicates that someone used an invalid
Key Fob to try to start the engine. Either of these
conditions will result in the engine being shut off after
two seconds.
If the Vehicle Security Light turns on during normal
vehicle operation (vehicle running for longer than 10 sec-
onds), it indicates that there is a fault in the electronics.
Should this occur, have the vehicle serviced as soon as
possible by an authorized dealer.
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