Prius L4-1.8L (2ZR-FXE) Hybrid (2010)
4. BUB (BACK-UP BATTERY) OUTLINE
(a) The BUB (Back-Up Battery) is a non-rechargeable battery.
(b) When ACN (Automatic Collision Notification) occurs, the BUB (Back-Up Battery) provides power to the DCM (Telematics Transceiver).
NOTICE:
*
After ACN is performed, the BUB (Back-Up Battery) must be replaced.
*
The BUB (Back-Up Battery) must not be replaced while an ACN call is in progress.
HINT
When a Manual Emergency Call is made, the BUB (Back-Up Battery) is not used as the power source.
(c) When it is time to replace the BUB (Back-Up Battery), the manual (SOS) switch red indicator will come on. The DCM (Telematics
Transceiver) will also store a DTC.
5. INDICATOR CONTROL FUNCTION DURING DCM (TELEMATICS TRANSCEIVER) SELF CHECK MODE
HINT
Every time after the power switch is turned on (IG), the DCM (Telematics Transceiver) will enter into a self check mode. The manual
(SOS) switch red indicator will illuminate for 2 seconds and then turn off and then the manual (SOS) switch green indicator will
illuminate and will stay on throughout normal operation. The following chart indicates the possible scenarios.