Remote Controls

The power supply for the remote controls is provided by a non-replaceable re-chargeable battery.

• Charging: The battery is charged when the remote control is engaged in the ignition switch. Charging takes place via a 125 kHz interface in the ignition switch.
• Monitoring: The re-chargeable battery voltage is monitored by the remote control. At low voltage a Check Control message is output to the instrument cluster.

Each remote control is individually coded. As a result, different memory functions can be saved for each key: for example, seat adjustment, outside mirror adjustment, steering column adjustment etc.

The operating radio frequency of the remote controls in the U.S. is now 868.4Mhz.

No initialization procedure is required for the Remote Controls, once the CAS has recognized the key as valid it is automatically initialized.