2013 Lexus IS250 automatic transmission

1
2
3
4
5
6
7
3
2-1. Driving proceduresDriving the vehicle ........................ 130
Engine (ignition) switch .............. 140
Automatic transmission.............. 144
Turn signal lever ............................ 150
Parking brake ................................... 151
Horn.................................................... 152
2-2. Instrument cluster Gauges and meters ..................... 153
Indicators and warning lights................................................. 159
Multi-information display........... 162
2-3. Operating the lights and windshield wipers
Headlight switch ............................ 167
Fog light switch ................................ 171
Windshield wipers and washer............................................. 173
Headlight cleaner switch ........... 180 2-4. Using other driving systems
Cruise control ................................. 181
Intuitive parking assist ................. 185
Driving assist systems.................... 191
2-5. Driving information Cargo and luggage ...................... 197
Vehicle load limits ....................... 200
Winter driving tips ........................ 201
Trailer towing ................................ 205
Dinghy towing ............................... 206
2When driving

When driving2
129
2-1. Driving proceduresDriving the vehicle.................. 130
Engine (ignition) switch ......... 140
Automatic transmission ........ 144
Turn signal lever ....................... 150
Parking brake ............................ 151
Horn ............................................ 152
2-2. Instrument cluster Gauges and meters ................ 153
Indicators and warning lights ......................................... 159
Multi-information display ..... 162
2-3. Operating the lights and windshield wipers
Headlight switch...................... 167
Fog light switch ......................... 171
Windshield wipers and washer ..................................... 173
Headlight cleaner switch..... 180 2-4. Using other driving
systems
Cruise control........................... 181
Intuitive parking assist ........... 185
Driving assist systems ............. 191
2-5. Driving information Cargo and luggage ................. 197
Vehicle load limits .................. 200
Winter driving tips .................. 201
Trailer towing .......................... 205
Dinghy towing ......................... 206

144
2-1. Driving procedures
Automatic transmission
Select a shift position appropriate for the driving conditions.
■Shifting the shift lever
While the “ENGINE START STOP” switch is in IGNITION
ON mode, depress the brake pedal and move the shift lever.
■ Shift position uses
*: To improve fuel consumption and reduce noises, set the shift lever in the D
position for normal driving.
Shift positionFunction
PParking the vehicle or starting the engine
RReversing
NNeutral
DNormal driving*
SS mode driving ( P. 1 4 7 )

148
2-1. Driving procedures
■When the “-” shift paddle switch is operated in the D position
When the “-” shift paddle switch is operated in the D position, a shift range will be
automatically selected. The highest gear of the first shift range will be one gear
lower than the gear in use during normal D position driving.
■Automatic deactivation of shift range selection in the D position
Shift range selection in the D position will be deactivated in the following situations:
●When the vehicle comes to a stop
●When range 6 is selected and the accelerator pedal is depressed
●If the accelerator pedal is depressed for more than a certain period of time
■To protect automatic transmission
A function is adopted that automatically se lects a higher shift range when the fluid
temperature is high.
■Gear position disp lay when driving
The current gear is displayed on the multi-information display. ( P. 1 6 5 )
■Downshifting restrictions warning buzzer
To help ensure safety and driving perfor mance, downshifting operation may some-
times be restricted. In some circumstance s, downshifting may not be possible even
when the shift lever or shift paddle switch is operated. (The warning buzzer will
sound twice.)
■When driving with the cruise control system
Engine braking will not occur during shif t range selection in the D position or S
mode, even when downshifting to range 5 or 4. ( P. 181)
■Snow mode automatic deactivation
Snow mode is automatically deactivated if the “ENGINE START STOP” switch is
turned off after driving in snow mode.
■If the shift lever cannot be shifted from P
P. 4 9 4

149
2-1. Driving procedures
2
When driving
■If does not come 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 vehicle will operate as if the shift lever is in D.)
■AI-SHIFT
The AI-SHIFT automatically shifts the gear to the suitable position according to the
driver performance and driving conditions.
The AI-SHIFT automatically operates when the shift lever is in the D position. How-
ever, operating the “-” shift paddle switch will restrict the function’s operation. (Shift-
ing the shift lever to the S position cancels the function.)
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.

165
2-2. Instrument cluster
2
When driving
■Gear position display
Indicates the current gear , and the range of gears
that is available when the shift lever is in the D or S
position. The gear range is shown by the number of
dots ( ) and the current gear is shown as a number.
The transmission automatically selects the gears
within the driver selected gear range.
In the illustration to the left , a range of 6 available gears
(1 through 6) has been selected by the driver. (The shift
lever is in the D or S position with 6 ranges enabled.) It is
possible for the transmission to automatically select
between all 6 of the gears. In this case, the transmission
has selected third gear.
■System check display
After switching the “ENGINE START ST OP” switch to IGNITION ON mode,
“CHECK” is displayed while system operation is checked. When the system check
is complete, “COMPLETED” is displayed before returning to the normal screen.
■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 12 mph [20 km/h])
●When the outside temperature has changed suddenly (at the entrance/exit of a
garage, tunnel, etc.)

382
4-2. Maintenance
Vehicle interior
ItemsCheck points
Accelerator pedal• Moves smoothly (without uneven pedal effort or catching)?
Automatic transmission “Park”
mechanism• Can the vehicle be held securely on an incline with the shift lever in
P?
Brake pedal
• Moves smoothly?
• Does it have appropriate clearance and correct amount of free play?
Brakes
• Not pull to one side when applied?
• Loss of brake effectiveness?
• Spongy feeling brake pedal?
• Pedal almost touches floor?
Head restraints• Move smoothly and lock securely?
Indicators/buzzers• Function properly?
Lights
• Do all the lights come on?
• Headlights aimed correctly? ( P. 4 4 2 )
Pa r k i n g b r a ke
• Moves smoothly?
• Can hold the vehicle securely on
an incline?
Seat belts
• Does the seat belt system operate smoothly?
• Are the belts undamaged?
Seats• Do the seat controls operate prop- erly?

440
4-3. Do-it-yourself maintenance
9ACC7. 5 A
Clock, air conditioning system, audio,
navigation system, outside rear view
mirrors, Lexus parking assist monitor,
glove box light, console box light, mul-
tiplex communication system, display,
smart access system with push-but-
ton start
10CIG15 ACigarette lighter
11PWR OUTLET15 APo w e r o u t l e t
12RR DOOR RH20 APo w e r w i n d o w s
13FR DOOR RH20 A
Power windows, outside rear view
mirrors, multiplex communication sys-
tem
14AM27. 5 AStarting system
15RH-IG7. 5 A
Seat belts, intuitive parking assist,
automatic transmission, seat heater
and ventilator, windshield wiper de-
icer
16FR S/HTR RH15 ASeat heaters and ventilators
17ECU-IG RH10 A
Power seats, smart access system with
push-button start, AWD system, out-
side rear view mirrors, VDIM, air con-
ditioning system, electric tilt and
telescopic steering, power windows,
navigation system, multiplex commu-
nication system
FuseAmpereCircuit