Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Precaution
PRECAUTION
PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL
NOTICE:
When disconnecting the cable from the negative (-) auxiliary 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) |
SERVICE MODE
NOTICE:
-
Before servicing, enter service mode to restrain telematics communication functions and prevent the following while servicing:
- Remote door lock and unlock operations
- Remote power start and stop operations
- Warning notification function.
- Service mode can be entered by using the Techstream or operating the remote touch.
HINT:
When a warning is generated due to a vehicle malfunction, the DCM (Telematics Transceiver) receives warning information from the combination meter assembly and sends a warning notification to the service center.
(a) Service mode
(1) Enter service mode (Method 1)
- Turn the engine switch off.
- Connect the Techstream to the DLC3.
- Start the engine.
- Turn the Techstream on.
- Enter the following menus: Body Electrical / Telematics
(2) Enter service mode (Method 2)
-
w/ Navigation System:
Enter diagnostic mode of navigation system.
Click here
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-
w/o Navigation System:
Enter diagnostic mode of audio and visual system.
for 12.3 Inch Display: Click here
for 8 Inch Display: Click here
HINT:
Use the Techstream to cancel communication function pausing mode (Service Mode).
Click here
PRECAUTION FOR TELEMATICS SYSTEM
(a) If replacing any of the following parts, refer to Initialization.
Click here
NOTICE:
If registration is not performed after replacing any of the following parts, the remote door lock and unlock and remote engine start and stop will not be available.
(1) Certification ECU (smart key ECU assembly)
(2) DCM (telematics transceiver)
(3) Main body ECU (multiplex network body ECU)
PRECAUTION FOR ACTIVATION
(a) When replacing the DCM (Telematics Transceiver), perform DCM activation.
Click here
PRECAUTION FOR TROUBLESHOOTING REMOTE SERVICE FUNCTION
(a) When troubleshooting symptoms such as when part of the remote service function does not operate normally, first check that there are no third party parts connected to the DLC3. If any such parts are connected to the DLC3, some parts of the remote service function may not operate normally.
Therefore, explain the situation to the customer, remove the parts and turn the engine switch off and on (IG) before proceeding with troubleshooting.
Parts Location
PARTS LOCATION ILLUSTRATION *1 TELEPHONE AND GPS ANTENNA (for Roof Side) - GPS - Telephone Main *2 MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) *3 AIR CONDITIONING AMPLIFIER ASSEMBLY * ...
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Lexus Display Audio system
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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