Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Precaution
PRECAUTION
PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL
NOTICE:
When disconnecting the cable from the negative (-) battery terminal, initialize the following system(s) after the cable is reconnected.
| System | 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) |
TROUBLESHOOTING PRECAUTIONS
(a) When inspecting the rear brakes, disconnect the connector or disconnect the cable from the negative (-) battery terminal in order to shut off the supply of electrical power.
CAUTION:
- Do not perform the rear brake inspection while either the connector or the negative (-) battery terminal are connected.
- The rear disc brake piston could operate, resulting in an accident such as hands being caught.
(b) The electric parking brake may still operate for 20 seconds* after the engine switch is turned off.
- *: The electric parking brake may still operate up to 60 minutes depending on the state of the vehicle after the engine switch is turned off, so be sure to perform the work procedures with the vehicle on a level surface.
(c) When any parts have been removed or installed, check for DTCs after completion of installation to confirm that the system is operating correctly.
HINT:
After performing work procedures such as installation, if the parking brake indicator light (red) is blinking, the parking brake must be released.
HANDLING PRECAUTIONS
(a) When tilting the vehicle to perform work after parking the vehicle on a level surface, the braking force may not be sufficient. Make sure to pull the electric parking brake switch (electric parking brake switch assembly) to the lock side 2 times (2 lock operations).
HINT:
-
The electric parking brake system determines the amount of force used to operate the parking brake according to the tilt angle detected by the deceleration sensor (airbag ECU assembly). (for Optitron Meter Type)
The electric parking brake system determines the amount of force used to operate the parking brake according to the tilt angle detected by the deceleration sensor (yawrate sensor assembly). (for TFT Meter Type)
- When the parking brake indicator (red) is illuminated after the electric parking brake switch (electric parking brake switch assembly) has been pulled to the lock side, the maximum amount of braking force is applied if the electric parking brake switch (electric parking brake switch assembly) is pulled to the lock side one more time.
(b) The parking brake indicator light blinks (red) when the engine switch is turned on (IG) after replacing the skid control ECU (brake actuator assembly). Operate the electric parking brake switch (electric parking brake switch assembly) to turn off the parking brake indicator light.
PRECAUTIONS FOR TOWING VEHICLES
(a) For towing precautions: Click here .gif)
PARKING BRAKE FORCED RELEASE METHOD
(a) For the parking brake forced release method: Click here
Parts Location
PARTS LOCATION ILLUSTRATION *1 SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) *2 ECM *3 ENGINE ROOM RELAY BLOCK AND JUNCTION BLOCK ASSEMBLY - ABS NO. 2 FUSE - ECU-IG1 NO. 5 FUSE - - ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Vehicle Stability Control System: Vehicle Control History
VEHICLE CONTROL HISTORY DESCRIPTION
Vehicle Control History is a function that captures and stores ECU data when triggered by specific vehicle behavior.
It may be possible to determine the cause of the malfunction by checking the vehicle history information and freeze frame data.
The number o ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Wiper And Washer System: Headlight Cleaner Motor and Relay Circuit
DESCRIPTION The headlight cleaner motor and pump assembly is controlled by the headlight ECU sub-assembly RH. When the headlight ECU sub-assembly RH receives the washer switch operation signal 5 times with the low beam headlights on, it operates the H-LP CLN relay once. WIRING DIAGRAM CAUTION / NOT ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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