Anti-Theft - Passive Anti-Theft System (PATS)

Anti-Theft

NOTE: The Smart Junction Box (SJB) is also known as the Generic Electronic Module (GEM).

The Passive Anti-Theft System (PATS) uses radio frequency identification technology to deter a drive-away theft. Passive means that it does not require any activity by the user.

The vehicle is equipped with Integrated Keyhead Transmitter (IKT) keys.

Passive Anti-Theft System (PATS) Function





This vehicle is equipped with 2 IKT PATS keys. The IKTs operate as a standard PATS key with a Remote Keyless Entry (RKE) transmitter incorporated into the keyhead. The IKTs require batteries for the RKE transmitter to operate. The IKT battery is not necessary for PATS operation. A maximum of 4 IKT keys can be programmed to operate the vehicle. If more than 4 IKT keys are programmed, the RKE portion of the additional keys do not operate and the SJB (and the Instrument Panel Cluster (IPC)) sets a DTC and INT KEY COULD NOT PROGRAM is displayed in the message center. These additional keys start the vehicle, but cannot operate the RKE system. If additional PATS keys are desired, a standard PATS key (a non-IKT key) can be used. For the purposes of this system, the PATS portion of the IKT key is referred to as a PATS key.

PATS consists of the following components:

- Anti-theft indicator (located in the IPC and depicts a vehicle with a padlock covering part of it)
- IKT key(s) (the key contains a PATS transponder and an RKE transmitter)
- PATS transceiver (located around the ignition lock cylinder)
- IPC
- PCM

PATS is not compatible with aftermarket remote start systems, which allow the vehicle to be started from the exterior of the vehicle. These systems can reduce the security of the vehicle, and also can cause no-start concerns. Remote start systems must be removed from the vehicle before any PATS-related no-start concerns are investigated.

PATS disables the vehicle from starting if there is:

- a damaged IKT key.
- an unprogrammed IKT key.
- a non-encoded (non-PATS) key (a conventional key or one that does not have any electronics).
- damaged wiring.
- a damaged transceiver.
- a damaged IPC.
- a damaged PCM.

The vehicle is originally equipped with IKTs manufactured by Huf. Replacement IKTs made by Strattec works correctly, but may look and feel different. It is recommended that IKTs be replaced with the same manufacturer's keys. Rotunda supplies matching keys by the same manufacturer if they are ordered by vehicle.