Reasons for the hybrid system not starting vary depending on the situation.
Check the following and perform the appropriate procedure:
The hybrid system will not start even though the correct starting procedure is being followed.
One of the following may be the cause of the problem:
Refuel the vehicle.
The interior lights and headlights are dim, or the horn does not sound or sounds at a low volume.
One of the following may be the cause of the problem:
The interior lights and headlights do not turn on, or the horn does not sound.
One of the following may be the cause of the problem:
Contact your Lexus dealer if the problem cannot be repaired, or if repair procedures are unknown.
Emergency start function
When the hybrid system does not start, the following steps can be used as an interim measure to start the hybrid system if the power switch is functioning normally.
Do not use this starting procedure except in cases of emergency.
1. Turn the power switch to ON mode and check that the parking brake is set.
2. Shift the shift lever to P.
3. Turn the power switch to ACCESSORY mode.
4. Press and hold the power switch for about 15 seconds while depressing the brake pedal firmly.
Even if the hybrid system can be started using the above steps, the system may be malfunctioning. Have the vehicle inspected by your Lexus dealer.
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Pre-collision System: Parts Location
PARTS LOCATION ILLUSTRATION *1 FORWARD RECOGNITION CAMERA *2 MILLIMETER WAVE RADAR SENSOR ASSEMBLY *3 BRAKE ACTUATOR ASSEMBLY - SKID CONTROL ECU *4 ECM ILLUSTRATION *A w/o VDIM *B w/ VDIM *1 AIRBAG SENSOR ASSEMBLY - YAW RATE SENSOR *2 YAW RATE SENSOR ASSEMB ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Electrical Key Oscillator(for Luggage Compartment): Removal
REMOVAL PROCEDURE 1. REMOVE TONNEAU COVER ASSEMBLY Click here 2. REMOVE DECK BOARD ASSEMBLY Click here 3. REMOVE REAR DECK FLOOR BOX Click here 4. REMOVE REAR NO. 4 FLOOR BOARD Click here 5. REMOVE FRONT DECK FLOOR BOX Click here 6. REMOVE NO. 3 INDOOR ELECTRICAL KEY ANTENNA ...