Handset Battery Replacement

NOTE: Petrol vehicles use a signal to the MEMS control unit on the W/O wire to control immobilisation. Only RHD diesel vehicles are fitted with the immobiliser facility, see Charging, Starting and Engine Immobilisation, TUD Diesel..

Handset Battery Replacement

Dependent on usage, the CR2032 type battery in the handset should last for three years. When the battery is near the end of its life, a reduction in the operating range of the handset may be noticed, the handset buttons will only work every other press and the alarm indicator will continue to flash for approximately 10 seconds when the vehicle is unlocked.

To change the battery, first carefully prise open the handset casing at the key ring end, taking care not to damage the seal. Slide the battery out, without bending the clip or touching any of the contact surfaces. Press and hold each handset button for five seconds, to allow residual power to discharge.

Without touching the contact surfaces, carefully slide a new battery into the clip, ensuring that the side marked ’+’ faces the clip. Snap together the two halves of the handset case.

Ensure that the vehicle is unlocked using the key. Operate the RH (lock symbol) button at least four times, until the vehicle is locked. The vehicle can then be unlocked with the handset and will operate normally.

The system will not arm if the ignition is switched on and will only partially arm if any of the following conditions exist:

• any door is not properly closed;
• the bonnet or boot are not properly closed;
• models without CDL, either of the front doors is not locked.

Partial arming is indicated by the warning indicator failing to flash quickly for the 10 second period. However, after 10 seconds have elapsed the warning indicator will flash once every second as a visual deterrent even though the system is not fully armed.

NOTE: The alarm system will not protect the incorrectly secured entry point and passenger doors will not be protected if any passenger door is not closed.