Page 3 of 652

1
2
3
4
5
6
RX350/270_EE
3
2-1. Driving procedures
Driving the vehicle ........................ 168
Engine (ignition) switch .............. 180
Automatic transmission.............. 186
Turn signal lever ............................ 193
Parking brake ................................. 194
Horn.................................................... 195
2-2. Instrument cluster
Gauges and meters ..................... 196
Indicators and warning
lights................................................. 198
Multi-information display.......... 203
Head-up display ............................ 212
2-3. Operating the lights and
windshield wipers
Headlight switch ............................. 217
Fog light switch ............................. 222
Windshield wipers and
washer............................................ 223
Rear window wiper and
washer............................................ 227
Headlight cleaner switch .......... 2292-4. Using other driving systems
Cruise control ............................... 230
Dynamic radar cruise
control............................................ 234
Lexus parking
assist-sensor................................ 248
Electronically modulated
air suspension ............................. 256
Rear view monitor system ........ 263
Driving assist systems................... 271
All-wheel drive lock switch ...... 277
Hill-start assist control ............... 278
Pre-Crash Safety system ......... 280
2-5. Driving information
Utility vehicle precautions ........ 289
Cargo and luggage ..................... 293
Winter driving tips ....................... 296
Trailer towing (RX350)........... 300
Trailer towing (RX270) ............... 311
2When driving
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Page 14 of 652
RX350/270_EE
14
Pictorial indexInstrument panel
Headlight switch
Turn signal lever
Fog light switch P. 217
P. 193
P. 222
Windshield wipers and washer switch
Rear window wiper and washer switch P. 223
P. 227
Power back door main
switch
∗ P. 62
Tilt and telescopic steering control switch P. 94
Parking brake pedal P. 194
Hood lock release
lever
P. 465
Gauges and meters
Multi-information display P. 196
P. 203
Glove box P. 421
Horn P. 195
Engine (ignition) switch P. 180
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Page 167 of 652

2When driving
167
RX350/270_EE
2-1. Driving procedures
Driving the vehicle ................. 168
Engine (ignition) switch ........ 180
Automatic transmission........ 186
Turn signal lever ...................... 193
Parking brake ........................... 194
Horn ........................................... 195
2-2. Instrument cluster
Gauges and meters ................ 196
Indicators and warning
lights......................................... 198
Multi-information
display .................................... 203
Head-up display ...................... 212
2-3. Operating the lights and
windshield wipers
Headlight switch ...................... 217
Fog light switch ....................... 222
Windshield wipers and
washer .................................... 223
Rear window wiper and
washer ..................................... 227
Headlight cleaner
switch...................................... 2292-4. Using other driving
systems
Cruise control ........................ 230
Dynamic radar cruise
control.................................... 234
Lexus parking
assist-sensor.......................... 248
Electronically modulated
air suspension ....................... 256
Rear view monitor
system ..................................... 263
Driving assist systems ............ 271
All-wheel drive lock
switch ...................................... 277
Hill-start assist control.......... 278
Pre-Crash Safety
system .................................... 280
2-5. Driving information
Utility vehicle
precautions .......................... 289
Cargo and luggage................ 293
Winter driving tips ................. 296
Trailer towing (RX350)....... 300
Trailer towing (RX270) .......... 311
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Page 195 of 652
195
2-1. Driving procedures
2
When driving
RX350/270_EE
Horn
To sound the horn, press on or
close to the mark.
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Page 254 of 652

254
2-4. Using other driving systems
RX350/270_EE
■Sensor detection information
●Certain vehicle conditions and the surrounding environment may affect the
ability of a sensor to correctly detect an obstacle. Particular instances where this
may occur are listed below.
• There is dirt, snow or ice on a sensor.
• A sensor is frozen.
• A sensor is covered in any way.
• The vehicle is leaning considerably to one side.
• On an extremely bumpy road, on an incline, on gravel, or on grass
• The vicinity of the vehicle is noisy due to vehicle horns, motorcycle engines,
air brakes of large vehicles, or other loud noises producing ultrasonic waves.
• There is another vehicle equipped with parking assist sensors in the vicinity.
• A sensor is coated with a sheet of spray or heavy rain.
• The vehicle is equipped with a fender pole or radio antenna.
• Towing eyelets are installed.
• A bumper or sensor receives a strong impact.
• The vehicle is approaching a tall or right-angled curb.
• In harsh sunlight or intense cold weather.
• A non-genuine Lexus suspension (lowered suspension, etc.) is installed.
In addition to the examples above, there are instances in which, because of their
shapes, signs and other objects may be judged by a sensor to be closer than they
are.
●The shape of the obstacle may prevent a sensor from detecting it. Pay particular
attention to the following obstacles:
• Wires, fences, ropes, etc.
• Cotton, snow and other materials that absorb sound waves
• Sharply-angled objects
• Low obstacles
• Tall obstacles with upper sections projecting outwards in the direction of your
vehicle
■If a message is displayed
→P. 5 5 2
■Customization
Settings (e.g. buzzer volume) can be changed.
(Customizable features →P. 6 2 2 )
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Page 507 of 652
507
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX350/270_EE
Fuse layout and amperage ratings
■Engine compartment
FuseAmpereCircuit
1RDI FAN NO. 180 AElectric cooling fans
2RR DEF50 ARear window defogger
3AIR SUS50 AElectronically modulated air suspen-
sion
4HEATER50 AAir conditioning system
5SPARE30 A
6SPARE40 A
7ABS NO. 230 AVehicle stability control
8H-LP CLN30 AHeadlight cleaner
9PBD30 APower back door
10ST30 AStarter system
11PD50 A
A/F, H-LP RH HI, H-LP LH LO, H-LP
RH LO, H-LP LH HI, HORN, S-
HORN, EFI MAIN NO. 2
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Page 511 of 652
511
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX350/270_EE
*1:RX270
*2:RX350
45TOW IN G30 ATr a i l e r l i g h t s
46FILTER10 A
47IG1 MAIN30 AECU-IG1 NO. 6, BK/UP LP, ECU-
IG1 NO. 5, ECU-IG1 NO. 4
48H-LP RH HI15 ARight-hand headlight (high beam)
49H-LP LH HI15 ALeft-hand headlight (high beam)
50BIXENON10 A
51H-LP RH LO15 ARight-hand headlight (low beam),
manual headlight leveling system
52H-LP LH LO15 ALeft-hand headlight (low beam)
53HORN10 AHorn
54
EFI MAIN
NO. 2
*120 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
A/F*2
55S-HORN7. 5 AS-HORN
FuseAmpereCircuit
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Page 587 of 652

5
587
5-2. Steps to take in an emergency
When trouble arises
RX350/270_EE
If the engine will not start
If the engine will not start even though correct starting procedures are
being followed (→P. 180), consider each of the following points.
■The engine will not start, even though the starter motor operates
normally.
One of the following may be the cause of the problem:
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●The engine may be flooded.
Try to restart the engine again following correct starting proce-
dures. (→P. 1 8 0 )
●There may be a malfunction in the engine immobilizer system.
(→P. 115)
■The starter motor turns over slowly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low vol-
ume.
One of the following may be the cause of the problem:
●The battery may be discharged. (→P. 5 9 4 )
●The battery terminal connections may be loose or corroded.
■The starter motor does not turn over.
The engine starting system may be malfunctioning due to an electri-
cal problem such as an open circuit or a blown fuse. However, an
interim measure is available to start the engine. (→P. 588)
RX350_270_EE_48D77E.book 587 ページ 2014年1月24日 金曜日 午前10時4分