cruise control LEXUS RX350 2015 Owners Manual

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32-1. Driving procedures
Driving the vehicle ........................ 154
Engine (ignition) switch .............. 165
Automatic transmission
(6-speed models) ........................ 171
Automatic transmission
(8-speed models) ...................... 178
Turn signal lever ............................ 187
Parking brake ................................. 189
Horn.................................................... 190
2-2. Instrument cluster
Gauges and meters ....................... 191
Indicators and warning
lights................................................. 194
Multi-information display......... 200
Head-up display ........................... 206
2-3. Operating the lights and
windshield wipers
Headlight switch .............................. 211
Fog light switch .............................. 215
Windshield wipers and
washer.............................................. 217
Rear window wiper and
washer............................................ 224
Headlight cleaner switch .......... 226 2-4. Using other driving systems
Cruise control ............................... 227
Dynamic radar cruise
control............................................ 232
Intuitive parking assist ................ 245
Rear view monitor system
(rear view mirror-attached
type) ................................................ 255
Rear view monitor system
(vehicles with the Lexus
Display Audio system) ............ 264
Driving assist systems................. 269
All-wheel drive lock switch ...... 275
Hill-start assist control ............... 276
Pre-Collision System.................. 278
BSM (Blind Spot Monitor) ....... 286
2-5. Driving information
Utility vehicle pre cautions ........ 292
Cargo and luggage ..................... 296
Vehicle load limits ......................... 301
Winter driving tips ....................... 302
Trailer towing ................................ 306
Dinghy towing ............................... 3232
When driving

18B
Pictorial index Instrument panel Telephone switch
* P. 433, 560
Vehicle-to-vehicle distance
button
 P. 232
Talk switch
* P. 433, 560Steering wheel audio switches
* P. 430, 556
Type A
Multi-information switches P. 200
Cruise control switch P. 227, 232
Telephone switch
* P. 433, 560
Vehicle-to-vehicle distance
button
 P. 232Talk switch
* P. 433, 560Steering wheel audio switches
* P. 430, 556
Type B
Multi-information switches P. 200
Cruise control switch P. 227, 232Paddle shift switches P. 171, 178

24 Installation of a mobile two-way radio system The installation of a mobile two-way radio system in your vehicle could affect elec-
tronic systems such as: ●
Multiport fuel injection system/sequential multiport fuel injection system●
Cruise control system●
Dynamic radar cruise control system●
Anti-lock brake system●
SRS airbag system●
Seat belt pretensioner system
Be sure to check with your Lexus dealer for precautionary measures or special
instructions regarding installation of a mobile two-way radio system.
Vehicle data recordings Your Lexus is equipped with several soph isticated computers that will record cer-
tain data, such as:
•Engine speed
• Accelerator status
•Brake status
• Vehicle speed
•Shift position
The recorded data varies according to the vehicle grade level and options with
which it is equipped. Furthermore, these computers do not record conversations,
sounds or pictures.

When driving
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1532-1. Driving procedures
Driving the vehicle.................. 154
Engine (ignition) switch ......... 165
Automatic transmission
(6-speed models) .................. 171
Automatic transmission
(8-speed models) ................. 178
Turn signal lever ....................... 187
Parking brake ........................... 189
Horn ............................................ 190
2-2. Instrument cluster
Gauges and meters ................. 191
Indicators and warning
lights ......................................... 194
Multi-information
display .................................... 200
Head-up display ..................... 206
2-3. Operating the lights and
windshield wipers
Headlight switch....................... 211
Fog light switch ........................ 215
Windshield wipers and
washer ..................................... 217
Rear window wiper and
washer .................................... 224
Headlight cleaner switch..... 226 2-4. Using other driving
systems
Cruise control......................... 227
Dynamic radar cruise
control .................................... 232
Intuitive parking assist .......... 245
Rear view monitor system
(rear view mirror-attached
type) ........................................ 255
Rear view monitor system
(vehicles with the Lexus
Display Audio system) ....... 264
Driving assist systems ........... 269
All-wheel drive lock
switch ....................................... 275
Hill-start assist control .......... 276
Pre-Collision System ............ 278
BSM
(Blind Spot Monitor) .......... 286
2-5. Driving information
Utility vehicle
precautions ........................... 292
Cargo and luggage ............... 296
Vehicle load limits ................... 301
Winter driving tips ................. 302
Trailer towing .......................... 306
Dinghy towing ......................... 323

1772-1. Driving procedures
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When driving ■
When driving with cruise control or radar cruise control activated
Even when performing the following acti ons with the intent of enabling engine
braking, engine braking will not activate while driving in S mode and downshifting
to 5 or 4 because cruise control or radar cruise control will not be canceled.
(  P. 227, 232)■
If the shift lever cannot be shifted from P
 P. 7 9 1■
If S does not come on or D comes on even after shifting the shift lever to S
This may indicate a malfunction in the automatic transmission system. Have the
vehicle inspected by your Lexus dealer immediately.
(In this situation, the transmission will operate in the same as manner as when the
shift lever is in D.)■
Downshift restriction warning buzzer (S mode)
To help ensure safety and driving perfor mance, downshifting operation may some-
times be restricted. In some circumstances, downshifting may not be possible even
when the shift lever or paddle shift switch is operated. (The warning buzzer will
sound twice.)
CAUTION■
When driving on slippery road surfaces
Be careful of downshifting and sudden accele ration, as this could result in the vehi-
cle skidding to the side or spinning.

1852-1. Driving procedures
2
When driving ■
Downshift restrictions warning buzzer
To help ensure safety and driving perfor mance, downshifting operation may some-
times be restricted. In some circumstances, downshifting may not be possible even
when the shift lever or paddle shift switch is operated. (A buzzer will sound twice.)■
When driving with cruise control activated
Even when performing the following acti ons with the intent of enabling engine
braking, engine braking will not activate while driving in M mode and downshifting
to 7, 6, 5 or 4 because cruise control will not be canceled. (  P. 2 2 7 )■
Automatic deactivation of snow mode
If the “ENGINE START STOP” switch is turn ed off after driving in snow mode, the
mode is automatically deactivated.■
If the shift lever cannot be shifted from P
 P. 7 9 1■
Automatic gear selection when the vehicle is stopped
When the vehicle comes to a stop, the tran smission will automatically downshift to
allow you to start off in 1 st
gear.■
If the automatic transmissi on fluid temperature warn ing message is displayed
If the automatic transmission fluid tempera-
ture warning message is displayed while
driving, make sure you return to normal D
position driving and reduce speed by eas-
ing off the accelerator pedal. Stop the vehi-
cle in a safe place, shift the shift lever to the
P position and let the engine idle until the
warning message goes out.
When the warning message goes out, the
vehicle can be driven again.
If the warning message does not go out
after waiting a while, have your vehicle
inspected by your Lexus dealer.

1972-2. Instrument cluster
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When driving ■ Indicators
The indicators inform the driver of th e operating state of the vehi-
cle’s various systems. Turn signal indicator
(  P. 1 8 7 ) (if equipped)
Intuitive parking assist
indicator
(  P. 2 4 5 )
Headlight high beam indi-
cator (  P. 2 1 3 ) Slip indicator
(  P. 270, 276)(U.S.A.)
Headlight indicator
(  P. 2 1 1 ) VSC off indicator
(  P. 2 7 1 )(Canada)
Tail light indicator
(  P. 211) Eco Driving Indicator
Light (  P. 1 5 6 )
Front fog light indicator
(  P. 2 1 5 ) (if equipped)
SRS airbag on-off indica-
tor (  P. 1 3 2 )
Cruise control indicator
(  P. 227, 232) (if equipped)
SRS airbag on-off indica-
tor (  P. 1 3 2 ) (if equipped)
Radar cruise control indi-
cator (  P. 232) * 1, 2
* 1
* 1
* 1
* 1

2022-2. Instrument cluster
Electronic features control contents Setting electronic features controls
Intuitive parking assist
(if equipped)  P. 2 4 5
Snow mode  P. 173, 180
Other contents Details
Outside temperature Displays the outside temperature
Dynamic radar cruise control display
(if equipped) (  P. 232) Automatically displayed when using
dynamic radar cruise control
Customization (  P. 8 3 4 ) Settings of functions such as the
door lock and light illumination time
can be changed
Wa r n i n g m e s s a g e (  P. 7 5 4 ) Automatically displayed when a mal-
function occurs in one of the vehi-
cle's systems

2042-2. Instrument cluster
■
Electronic features control can be turned on/off when
The “ENGINE START STOP” switch is in IGNITION ON mode.■
Conditions for ending electronic features control
In the following situations, the electronic features control will end: ●
The menu switch is pressed.●
The dynamic radar cruise control is operated (if equipped).●
Intuitive parking assist starts operating (if equipped).●
No action is performed for some time after the electronic features control
screen is displayed.●
A warning message appears after the electronic features control screen is dis-
played.■
Eco Driving Indicator
■
Outside temperature display
In the following situations, the correct outside temperature may not be displayed, or
the display may take longer than normal to change.
●
When stopped, or driving at low speeds (less than 16 mph [25 km/h])
●
When the outside temperature has changed suddenly (at the entrance/exit of a
garage, tunnel, etc.) Eco Driving Indicator Light
During Eco-friendly acceleration (Eco
driving), Eco Driving Indicator Light will
turn on.
Eco Driving Indicator Zone Display
Suggests Eco driving range with current
Eco driving ratio based on acceleration.
Zone of Eco driving
Eco driving ratio based on acceleration
If Zone of Eco driving is exceeded, the
right of Eco Driving Indicator Zone Dis-
play will blink and Eco Driving Indicator
Light will turn off.

2272
When driving 2-4. Using other driving systems
Cruise control 
 : If equippedUse the cruise control to maintain a set speed without depressing the
accelerator pedal.
Indicator
Display
Cruise control switch
■ Setting the vehicle speed
Press the “ON-OFF” button to
activate the cruise control. Cruise control indicator will
come on.
Press the button again to deacti-
vate the cruise control. STEP 1