This light goes on and off nearly all the time when I'm driving. The only thing I can think of is maybe a faulty tire pressure sensor or it because I've turned the TPMS off with an AEV Pro-Cal? I do believe I had a faulty sensor in one of the tires, which is one of the reasons I shut off the TPMS.




Anyway, does anyone have any knowledge of what this light does? I've always seen it flash when the Jeep is off and locked, so I assumed it was for the factory alarm system.

Thanks!

 

page 16.
The Sentry Key Immobilizer System does not need to be
armed or activated. Operation of the system is automatic
regardless of whether or not the vehicle is locked or
unlocked. During normal operation, the “Security Alarm
System Indicator Light” will come on for 3 seconds
immediately after the ignition switch is turned on for a
bulb check. Afterwards, if the bulb remains on, this
indicates a malfunction in the electronics. If the bulb
begins to flash immediately after the ignition switch is
turned on, this indicates that an invalid key is being used
to start the vehicle. Both of these conditions will result in
the engine being shut down after 2 seconds of running.
Keep in mind that a key which has not been programmed
is also considered an invalid key even if it is cut to fit the
ignition for that vehicle.
If the “Security Alarm System Indicator Light” comes on
during normal vehicle operation (it has been running for
longer than 10 seconds) a fault has been detected in the
electronics and the vehicle should be serviced as soon as
possible.

 

Thank you! That means mine has the last situation. It runs fine, so I'm not going to worry about it. It has been doing this for several years. As long as the doors lock properly, I'm good. I do know the alarm works. I have an aftermarket key cut just for getting into the doors and it sets the alarm off. I'd be curious to know the fault, but not curious enough to pay money to have it diagnosed.

Thanks again!