2020 LEXUS RX450H alarm

6878-2. Steps to take in an emergency
8
When trouble arises
RX350/RX350L_U
If you have a set of jumper (or booster) cables and a second vehicle with a bat-
tery, you can jump start your vehicle by following the steps below.Confirm that the electronic key is
being carried.
When connecting the jumper (or
booster) cables, depe nding on the situa-
tion, the alarm may activate and doors
locked. (
P. 78)
Open the hood ( P. 592)
If the vehicle battery is discharged
The following procedures may be used to start the engine if the vehicle’s bat-
tery is discharged.
You can also call your Lexus deal er or a qualified repair shop.
1
2

754What to do if... (Troubleshooting)
RX350/RX350L_U
●The seat belt reminder light is flashing
Are the driver and the passengers wearing the seat belts?
( P. 656, 656)
●The parking brake indicator is on
Is the parking brake released? ( P. 247)
Depending on the situation, other types of warning buzzer may also sound.
( P. 654, 661)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 77)
Do one of the following to stop the alarms:
• Unlock the doors.
• Turn the engine switch to ACCESSORY or IGNITION ON mode, or start the engine.
●Is the message displayed on the multi-information display?
Check the message on the multi-information display. ( P. 661)
●When a warning light turns on or a warning message is displayed, refer to
P. 654, 661.A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed

757Alphabetical index
RX350/RX350L_U
Alarm ............................................................. 77
All-wheel drive lock mode ................377
Anchor brackets ...................................... 57
AntennaRadio ........................................................ 423
Smart access system with push-button start ................... 146
Anti-lock Brake System (ABS)....... 378 Warning light ...................................... 654
Approach warning...............................308
Armrest .................................................... 555
Assist grips .............................................. 556
Audio system (with Lexus Display Audio System) ................... 394 Antenna .................................................. 423
Audio input........................................... 403
AUX port.............................................. 403
Bluetooth
® audio ..............................453
CD player .............................................. 427
iPod ...........................................................434
MP3/WMA disc ............................... 427
Optimal use ........................................... 413
Portable music player ...................... 442
Radio ........................................................420
Setup menu .......................................... 406
Steering wheel audio switches .............................................. 400
USB memory ...................................... 438 Audio system
(with navigation system)
*
Automatic air conditioning system .......................................... 503, 518 Air conditioning filter ........................ 618
S-FLOW mode..................................... 511
Automatic headlight leveling system .....................................................254
Automatic High Beam ....................... 256
Automatic light control system .......252
Automatic transmission.......... 236, 240 If the shift lever cannot be shifted from P ....................... 239, 244
M mode .................................................. 242
Paddle shift switches.............. 241, 242
S mode.....................................................237
AUX port ................................................ 403
Auxiliary boxes ......................... 535, 540
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

773Alphabetical index
RX350/RX350L_U
Tachometer ............................................... 86
Tail lightsLight switch ........................................... 252
Replacing light bulbs ....................... 630
Talk switch ....................................465, 487
Telephone switch.................................. 465
Theft deterrent system Alarm........................................................... 77
Engine immobilizer system.............. 74
Tire inflation pressure Maintenance data ..............................704
Warning light ...................................... 656
Tire information ..................................... 709 Glossary ...................................................716
Size .............................................................. 712
Tire identification number................. 711
Uniform Tire Quality Grading.................................................714
Tire pressure warning system Initializing............................................... 605
Installing tire pressure warning valves and transmitters ............... 605
Registering ID codes ...................... 606
Warning light ...................................... 656 Tires ........................................................... 604
Chains .....................................................385
Checking ...............................................604
Glossary................................................... 716
If you have a flat tire ..........................666
Inflation pressure......................613, 704
Replacing ...............................................666
Rotating tires ........................................604
Size ........................................................... 704
Snow tires ..............................................386
Spare tire....................................666, 704
Tire identification number ................. 711
Tire pressure warning system .... 605
Uniform Tire Quality Grading ................................................ 714
Warning light .......................................656
Tools ........................................................... 667
Top tether strap ........................................70
Total load capacity............................... 698
Touchless power back door .............. 132
Towing Dinghy towing ..................................... 230
Emergency towing ........................... 646
Towing eyelet ...................................... 649
Trailer Sway Control ....................... 378
Trailer towing............................. 215, 229
TRAC (Traction Control)................. 378
Traction Control (TRAC)................. 378
Trailer Sway Control .......................... 378
Trailer towing ................................215, 229
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