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GETTING TO KNOW YOUR VEHICLE 19
SENTRY KEY
The Sentry Key Immobilizer system prevents unauthorized
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 ignition keys which have an embedded elec-
tronic chip (transponder) to prevent unauthorized vehicle
operation. Therefore, only keys that are programmed to the
vehicle can be used to start and operate the vehicle.
NOTE:
A key which has not been programmed is also considered an
invalid key, even if it is cut to fit the ignition switch lock
cylinder for that vehicle.
If the vehicle security light is on after the key is placed in the
MAR (ACC/ON/RUN) position, it indicates that there is a
problem with the electronics.
All of the keys provided with your new vehicle have been
programmed to the vehicle electronics.
Replacement Keys
Only keys that have been programmed to the vehicle elec-
tronics can be used to start the vehicle. Once a Sentry Key has
been programmed to a vehicle, it cannot be programmed to
any other vehicle.
When having the Sentry Key Immobilizer System serviced,
bring all vehicle keys with you to an authorized dealer.
The Vehicle Identification Number (VIN) is required for
authorized dealer replacement of keys. Duplication of keys
may be performed at an authorized dealer.
CAUTION!
• Always remove the Sentry Key from the vehicle and
lock all doors when leaving the vehicle unattended.
• The Sentry Key Immobilizer system is not compatible
with some aftermarket remote starting systems. Use of
these systems may result in vehicle starting problems
and loss of security protection.
2
2020_RAM_PROMASTER_CITY_OM_USA=GUID-7B6A7FCA-79B0-423F-95C5-ED2A949C3D13=1=en=.book Page 19
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