cruise control LEXUS RX450h 2018 Owners Manual

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RX450h_RX450hL _U_OM48F85U 654-1. Before driving
Driving the vehicle ......................212
Cargo and luggage .................. 220
Vehicle load limits ..................... 223
Trailer towing (vehicles
with towing package)............ 224
Trailer towing (vehicles
without towing
package)..................................... 237
Dinghy towing ............................. 238
4-2. Driving procedures
Power (ignition) switch............ 239
EV drive mode ............................ 244
Hybrid transmission.................. 246
Turn signal lever ......................... 252
Parking brake .............................. 253
Brake Hold ................................... 256
4-3. Operating the lights and
wipers
Headlight switch ........................ 258
Automatic High Beam............. 262
Fog light switch ........................... 266
Windshield wipers and
washer ......................................... 267
Rear window wiper and
washer ..........................................272 4-4. Refueling
Opening the fuel tank cap ......274
4-5. Using the driving support
systems
Lexus Safety System+ .............. 279
PCS
(Pre-Collision System) ......... 286
LKA
(Lane-Keeping Assist).......... 297
Dynamic radar cruise
control with full-speed
range ............................................ 306
BSM (Blind Spot Monitor).......319
• BSM function......................... 323
• RCTA function...................... 327
Intuitive parking assist.............. 332
Intelligent Clearance Sonar
(ICS)............................................. 342
Lexus parking assist
monitor........................................ 363
Driving mode select
switch ........................................... 379
Driving assist systems .............. 382
4-6. Driving tips
Hybrid vehicle driving tips .....388
Winter driving tips..................... 390
Utility vehicle precautions ..... 3944
Driving

22 Pictorial index
RX450h_RX450hL _U_OM48F85UAudio remote control switches
* 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 406, 471
Paddle shift switches
* 2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 247, 248
Meter control switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 103
Vehicle-to-vehicle distance switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 312
Cruise control switch Dynamic radar cruise control with full-speed rang e . . . . . . . . . . . . . . . . . . . . P. 306
LKA (Lane-Keeping Assist) switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 297
Talk switch
* 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 493
Telephone switches
* 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 407, 4711
2
3
4
5
6
7
8

92 2. Instrument cluster
RX450h_RX450hL _U_OM48F85U* 1
: These lights turn on when the power switch is turned to ON mode to indicate that a
system check is being performe d. They will turn off after the hybrid system is on, or
after a few seconds. There ma y be a malfunction in a system if a light does not come
on, or turn off. Have the vehicl e inspected by your Lexus dealer.
* 2
: This light flashes to indicate a malfunction.
* 3
: This light flashes or illumina tes to indicate a malfunction.
* 4
: This light illuminates on the center panel.
* 5
:RX450h
* 6
:RX450hL
The indicators inform the driver of the op erating state of the vehicle’s various sys-
tems. Low fuel level warning light
( → P. 662)
* 4,6
Rear passengers’ seat
belt reminder light
( → P. 662)
Driver’s and front
passenger’s seat belt
reminder light ( → P. 662)
* 1
Tire pressure warning light
( → P. 662)
* 4, 5
Rear passengers’ seat
belt reminder light
( → P. 662)
* 1
Master warning light
( → P. 663)
Indicators Turn signal indicator
( → P. 252) Fog light indicator
( → P. 266)
(U.S.A.)
Headlight indicator
( → P. 258) Cruise control indicator
( → P. 306)
(Canada)
Tail light indicator
( → P. 258) Radar cruise control
indicator ( → P. 306)
Headlight high beam
indicator ( → P. 259) Cruise control “SET”
indicator ( → P. 306)
* 1
Automatic High Beam
indicator ( → P. 262) LKA indicator ( → P. 297)

104 2. Instrument cluster
RX450h_RX450hL _U_OM48F85U◆ Using the odometer/trip meter display area
Items in this area are operated using the “ODO/TRIP” switch.
Press: Change displayed item Each time the switch is pressed, the
displayed item will be changed.
Press and hold: Reset Display the desired trip meter and
press and hold the switch to reset the
trip meter.
Select a menu icon to display its content.
Drive information ( → P. 105)Select to display various drive data.
Navigation system-linked display (if equipped) Select to display the following na vigation system-linked information.
•Route guidance
• Compass display (heading-up display)
Audio system-linked display Select to enable selection of an audio source or track on the meter using the meter
control switches.
Driving assist system information Select to display the operational status of the following systems:
• Dynamic radar cruise control with full-speed range ( → P. 306)
• LKA (Lane-Keeping Assist) ( → P. 297)
Warning message display ( → P. 702)Select to display warning messages and me asures to be taken if a malfunction is
detected.
Settings display ( → P. 108)Select to change the meter display settings and other settings.Menu icons

118 2. Instrument cluster
RX450h_RX450hL _U_OM48F85UThe head-up display is linked to the meters and navigation system (if equipped)
and projects a variety of information in front of the driver, such as the current
vehicle speed and route guid ance to a set destination.
Navigation system-linked display area (if equipped) ( → P. 121)Displays the following items, which are linked to the navigation system:
•Street name
• Route guidance to destination
•Compass
Message display area ( → P. 120)Displays the following items:
• Warning/Message (if equipped)
• Audio system operation status
• Outside temperature
/ icon ( → P. 120)
Driving assist system status display area (if equipped) Displays the operational stat us of the following systems:
• Dynamic radar cruise control with full-speed range ( → P. 306)
• LKA (Lane-Keeping Assist) ( → P. 297)
• Intuitive parking assist ( → P. 332)
• Intelligent Clearance Sonar (ICS) ( → P. 342)
Displayed content is the same as that disp layed on the multi-information display. For
details, refer to the explanations of each system.Head-up display ∗
∗ : If equippedSummary of functions
1
2
3
4

120 2. Instrument cluster
RX450h_RX450hL _U_OM48F85UDisplays the following multi-in formation display linked icons:
: Master warning icon
Displayed when a warning message is displayed on the multi-information
display. ( → P. 667)
: Information icon
Displayed when a suggestion/advice po p-up display is displayed on the
multi-information display. ( → P. 116)
Displays the following items in the appropriate situation: ■
Warning/Message (if equipped)
Displays the following system warning/messages: • Pre-collision warning (pre-collision system)
• Alert from the Intelligent Clearance Sonar system
• Notification message (Dynamic radar cruise control with full-speed range)■
Audio system operation status
Displayed when the audio system is operated. ■
Outside temperature
Displayed in the following situations: • When the power switch is turned to ON mode
• When the low outside temperature indicator is flashing
Displayed content is the same as that disp layed on the multi-information display. For
details, refer to the explanation of the outs ide temperature displa y on the multi-infor-
mation display. ( → P. 96)/ icons
Message display area

211
4 Driving
RX450h_RX450hL _U_OM48F85U4-3. Operating the lights and
wipers
Headlight switch ........................ 258
Automatic High Beam ............. 262
Fog light switch ...........................266
Windshield wipers and
washer.......................................... 267
Rear window wiper and
washer.......................................... 272
4-4. Refueling
Opening the fuel tank cap...... 274 4-5. Using the driving support
systems
Lexus Safety System+ .............. 279
PCS
(Pre-Collision System) ......... 286
LKA
(Lane-Keeping A ssist) .......... 297
Dynamic radar cruise
control with full-speed
range ............................................306
BSM (Blind Spot Monitor) ...... 319
• BSM function ......................... 323
• RCTA function...................... 327
Intuitive parking assist .............. 332
Intelligent Clearance Sonar
(ICS) ............................................. 342
Lexus parking assist
monitor ........................................ 363
Driving mode select
switch ........................................... 379
Driving assist systems ..............382
4-6. Driving tips
Hybrid vehicle driving
tips ................................................ 388
Winter driving tips .....................390
Utility vehicle
precautions................................ 394

2354-1. Before driving
4
Driving
RX450h_RX450hL _U_OM48F85UWARNING ■
Trailer towing precautions
To tow a trailer safely, use extreme care and drive the vehicle in accordance with the
trailer’s characteristics and operating conditio ns. Failure to do so could cause an acci-
dent resulting in deat h or serious injury. Vehicle stab ility and braking performance are
affected by trailer stability, brake setting an d performance, and the hitch. Your vehicle
will handle differently when towing a trailer. ■
To avoid accident or injury ●
Do not exceed the TWR, unbraked TWR, GCWR, GVWR or GAWR. ●
If the gross trailer weight is over 2000 lb. (907 kg), a sway control device with suffi-
cient capacity is required. ●
Adjust the tongue weight within the approp riate range. Place heavier loads as close
to the trailer axle as possible. ●
Do not exceed 65 mph (104 km/h), the posted towing speed limit or the speed limit
for your trailer as set forth in your trai ler owner’s manual, whichever is lowest. Slow
down sufficiently before making a turn, in cr oss winds, on wet or slippery surface, etc.
to help avoid an accident. If you experien ce a vehicle-trailer in stability from reducing
a certain speed, slow down and make sure you keep your vehicle speed under the
speed of which you expe rience the instability.●
Do not make jerky, abrupt or sharp turns. ●
Do not apply the brakes suddenly as you ma y skid, resulting in jackknifing and loss of
vehicle control. This is especially true on wet or slippery surfaces.●
Do not exceed the trailer hitch assembly weight, gross vehicle weight, gross axle
weight and trailer tongue weight capacities. ●
Do not use the following systems when trailer towing.
• Dynamic radar cruise cont rol with full-speed range
• LKA (Lane-Keeping Assist)
• PCS (Pre-Collision system)
• BSM (Blind Spot Monitor)
*
* : If equipped ●
Slow down and downshift before descending steep or long downhill grades. Do not
make sudden downshifts while descending steep or long downhill grades. ●
Vehicle-trailer instability is more likely on steep long downhills. Before descending
steep or long downhill grades, slow down and downshift. Do not make sudden down-
shifts when descending steep or long do wnhill grades. Avoid ho lding the brake pedal
down too long or applying the brakes too frequently. This could cause the brakes to
overheat and result in reduced braking efficiency. ●
Do not tow a trailer when the compact sp are tire is installed on your vehicle.

2494-2. Driving procedures
4
Driving
RX450h_RX450hL _U_OM48F85U■
When the “-” paddle shift switch is operated with the shift lever in the D position (vehi-
cles with paddle shift switches)
The shift range is downshifted to a range that enables engine braking force that is suit-
able to driving conditions. ■
Automatic deactivation of shif t range selection in the D position (vehicles with paddle
shift switches)
Shift range selection in the D position will be deactivated in the following situations:●
When the vehicle comes to a stop ●
If the accelerator pedal is depressed fo r more than a certain period of time●
When the shift lever is shifted to a position other than D ■
S mode ●
When the shift range is S4 or lower, holding the shift leve r toward “+” sets the shift
range to S6. ●
Automatically selects a higher shift range before the engine speed becomes too high.■
Downshifting restriction warning buzzer
To help ensure safety and driving performance, downshifti ng operation may sometimes
be restricted. In some circum stances, downshifting may not be possible even when the
shift lever or paddle shift sw itch (if equipped) is operated . (A buzzer will sound twice.)■
When driving with dynamic radar cruise control with full-speed range activated
Even when performing the following actions with the intent of enabling engine braking,
engine braking will not occur because dynamic radar cruise control with full-speed
range will not be canceled. ●
Vehicles without paddle shift switches: While driving in S mode, downshifting to 5 or 4.
( → P. 306) ●
Vehicles with paddle shift sw itches: While driving in D or S mode, downshifting to 5 or
4. ( → P. 306)●
When switching the driving mode to spor t mode while driving in the D position
( → P. 379)■
Restraining sudden start (Drive-Start Control)
When the following unusual operation is performed, the hybrid system output may be
restrained. ●
When the shift lever is shifted from R to D, D to R, N to R, P to D, or P to R (D includes S)
with the accelerator pedal depressed, a wa rning message appears on the multi-infor-
mation display. If a warning message is shown on the multi- information display, read the
message and follow the instructions. ●
When the accelerator pedal is depressed too while the vehicle is in reverse. ■
Shift lock system
The shift lock system is a system to prevent ac cidental operation of the shift lever in start-
ing.
The shift lever can be shifted from P only wh en the power switch is in ON mode and the
brake pedal is being depressed.

279
4
Driving
RX450h_RX450hL _U_OM48F85U 4-5. Using the driving support systems
◆ PCS (Pre-Collision System)
→ P. 286
◆ LKA (Lane-Keeping Assist)
→ P. 297
◆ Automatic High Beam
→ P. 262
◆ Dynamic radar cruise contro l with full-speed range
→ P. 306Lexus Safety System+ The Lexus Safety System+ consists of the following drive assist systems and
contributes to a safe and comfo rtable driving experience:
WARNING ■
Lexus Safety System+
The Lexus Safety System+ is designed to operate under the assumption that the driver
will drive safely, and is design ed to help reduce the impa ct to the occupants and the
vehicle in the case of a collision or assist the driver in normal driving conditions.
As there is a limit to the degree of reco gnition accuracy and control performance that
this system can provide, do not overly rely on this system. The driver is always responsi-
ble for paying attention to the vehicl e's surroundings and driving safely.