PRECAUTION
PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL
NOTICE:
When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the terminal is reconnected.
System Name | See Procedure |
---|---|
Lane Control System | |
Pre-collision System | |
Intelligent Clearance Sonar System | |
Parking Assist Monitor System | |
Panoramic View Monitor System | |
Lighting System (w/ Automatic Headlight Beam Level Control System) | |
Power Door Lock Control System | |
Power Back Door System (w/ Outside Door Control Switch) |
WHEN DISCONNECTING BATTERY CABLE
(a) After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.
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WHEN AUTOMATIC COLLISION NOTIFICATION HAS ACTIVATED
(a) Perform "ACN CALL END" with the Techstream to terminate ACN (Automatic Collision Notification) with the call center.
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WHEN DISCONNECTING CONNECTORS FROM DCM (TELEMATICS TRANSCEIVER)
(a) The engine switch must be off.
WHEN REPLACING DCM (TELEMATICS TRANSCEIVER)
(a) After installing a new DCM (telematics transceiver), perform "DCM ACTIVATION" with the Techstream. This allows the Telematics service provider to register the new DCM (telematics transceiver) and to delete the old DCM (telematics transceiver) information from their database.
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NOTICE:
Do not replace the DCM (telematics transceiver) with one from another vehicle.
WHEN UNABLE TO CONTACT WITH CALL CENTER BUT NO DTC
(a) This may occur when the cellular signal strength was very weak. Check "DCM OPERATION HISTORY" with the Techstream.
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WHEN DIAGNOSING DCM (TELEMATICS TRANSCEIVER)
(a) While attempting to diagnose the DCM (telematics transceiver), do not use a DCM (telematics transceiver) from another vehicle. Each DCM (telematics transceiver) is registered to a specific VIN and should not be tested in another vehicle.
PRECAUTION FOR DCM (TELEMATICS TRANSCEIVER)
(a) The DCM (telematics transceiver) uses a LTE (Long Term Evolution) type radio wave signal. The radio wave signals and communication lines may occasionally be unstable depending on time or location factors. Therefore, network access errors may occur intermittently because of radio wave signal conditions. To determine if there is a problem, it may be necessary to make a judgment based on the frequency of the phenomenon or by making a comparison with a comparable type of cell phone.
(b) With the exception of replacing the mobilephone battery, the DCM (telematics transceiver) cannot be disassembled (the DCM [telematics transceiver] case must not be opened). Replace parts.
PRECAUTION FOR MOBILEPHONE BATTERY
(a) The mobilephone battery is a Lithium-ion type battery and can be charged from the DCM (telematics transceiver).
(b) When ACN (Automatic Collision Notification) is performed, the mobilephone battery provides power to the DCM (telematics transceiver).
NOTICE:
The mobilephone battery must not be replaced while an ACN call is in progress.
HINT:
When a Manual Emergency Call is made, the mobilephone battery is not used as the power source.
(c) When it is time to replace the mobilephone battery, the manual (SOS) switch red indicator will come on. The DCM (Telematics Transceiver) will also store a DTC or specific vehicle control history (RoB) code.
PRECAUTION FOR REGISTRATION
(a) If replacing any of the following parts, refer to Initialization.
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(1) DCM (telematics transceiver)
(2) Mobilephone battery
Lexus RX (RX 350L, RX450h) 2016-2025 Owners Manual > Do-it-yourself
maintenance: Windshield wiper inserts
Replacing a windshield wiper insert
1. Change the rest position of the windshield wipers to the service position
using
the wiper lever and then lift a windshield wiper.
2. While pressing and holding the
wiper blade lock release button,
remove the wiper blade.
When performing this operation ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Smart Access System With Push-button Start (for Entry Function): Entry Unlock and Unlatch Functions do not Operate Using Kick Sensor
DESCRIPTION If the hands free power back door operation does not operate, it could indicate the certification ECU (smart key ECU assembly) did not transmit a power back door open request signal, or a malfunction in the power back door system. CAUTION / NOTICE / HINT NOTICE:
The smart access syste ...