2011 Lexus IS F transmission

157
2-1. Driving procedures
2
When driving
IS F_EE
Rev indicator
Downshift restrictions warning buzzer
To help ensure safety and driving performance, downshifting operation may
sometimes 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 the cruise control or dynamic radar cruise control
Engine braking will not occur during shift range selection in the D position,
even when downshifting to range 7, 6, 5 or 4. (P. 180, 184)
Automatic deactivation of snow mode and “Sport” mode
If the “ENGINE START STOP” switch is turned OFF after driving in either
snow mode or “Sport” mode, the mode is automatically deactivated.
If the shift lever cannot be shifted from P
P. 4 5 6
Automatic gear selection when the vehicle is stopped
When the vehicle comes to a stop, the transmission will automatically
downshift to allow you to start off in 1st gear.
When the vehicle is idling at high rpm in order to warm up, and the vehi-
cle is on a slippery road, the transmission will automatically shift to 2nd
gear for stopping and starting off.
When the shift lever is in D (paddle
shift switches operated) or in M, an
indicator on the tachometer illuminates
in 3 steps in the case of high engine
speeds to encourage the driver to
upshift.
If the third (red) segment illuminates, a
buzzer will also sound

158
2-1. Driving procedures
IS F_EE
If the automatic transmission fluid temperature warning message is dis-
played
AI-SHIFT
The AI-SHIFT automatically selects the suitable gear according to driver
performance and driving conditions.
The AI-SHIFT automatically operates when the shift lever is in the D posi-
tion. However, operating the “-” paddle shift switch will restrict the func-
tion’s operation. (Shifting the shift lever to the M position cancels the
function.)
CAUTION
When driving on slippery road surfaces
Be careful of downshifting and sudden acceleration, as this could result in
the vehicle skidding to the side or spinning.
If the automatic transmission fluid tem-
perature warning message is displayed
while driving, make sure you return to
normal D position driving and reduce
speed by easing off the accelerator
pedal. Stop the vehicle 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 any authorized Lexus
dealer or repairer, or another duly qual-
ified and equipped professional

170
2-2. Instrument cluster
IS F_EEGear position display
Indicates the current gear, and the range of gears
that is available when the shift lever is in the D
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 8 available
gears (1 through 8) has been selected by the driver.
(The shift lever is in the D position with 8 ranges
enabled) It is possible for the transmission to auto-
matically select between all 8 of the gears. In this
case, the transmission has selected third gear.
When in the M position, the “F” mark is dis-
played.
Outside temperature display
In the following situations, the correct outside temperature may not be dis-
played, or the display may take longer than normal to change.
When stopped, or driving at low speeds (less than 20 km/h [12 mph])
When the outside temperature has changed suddenly (at the entrance/exit
of a garage, tunnel, etc.)
Changing units for the multi-information display
P. 1 6 3

405
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS F_EE
13FR DOOR RH20 APower windows, outside rear view
mirrors
14AM27.5 ASmart entry & start system
15RH-IG7.5 A
Seat belts, Lexus parking assist-
sensor, automatic transmission,
seat heaters, windshield wiper de-
icer
16FR S/HTR RH15 ASeat heaters
17ECU-IG RH10 A
Power seats, smart entry & start
system, VDIM, air conditioning
system, pre-crash seat belt, electric
tilt and telescopic steering column,
power windows, navigation sys-
tem, headlights, front fog lights,
front position lights, license plate
lights, windshield washer, outside
rear view mirrors
After a fuse is replaced
If the lights do not turn on even after the fuse has been replaced, a bulb
may need replacement. (P. 407)
If the replaced fuse blows again, have the vehicle inspected by any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
If there is an overload in the circuits
The fuses are designed to blow, protecting the wiring harness from damage.
FuseAmpereCircuit

5
417
5-1. Essential information
When trouble arises
IS F_EE
If your vehicle needs to be towed
Before towing
The following may indicate a problem with your transmission.
Contact any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional, before towing.
The engine is running, but the vehicle will not move.
The vehicle makes an abnormal sound.
Emergency towing
If a tow truck is not available, in an emergency your vehicle may
be temporarily towed using a cable or chain secured to the emer-
gency towing eyelet. This should only be attempted on hard, sur-
faced roads for short distances at low speeds.
A driver must be in the vehicle to steer and operate the brakes. The
vehicle’s wheels, drive train, axles, steering and brakes must be in
good condition.
If towing is necessary, we recommend having your vehicle towed by
any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional, such as a commercial towing service, using a
lift-type truck or a flat bed truck.
Use a safety chain system for all towing, and abide by all state/provin-
cial and local laws.
If towing from the rear, the vehicle's front wheels and axles must be in
good condition. (P. 421)
If they are damaged, use a towing dolly or flat bed truck.

418
5-1. Essential information
IS F_EETowing eyelet
Emergency towing procedure
Release the parking brake.
Shift the shift lever to N.
Put the “ENGINE START STOP” switch in ACCESSORY mode
(engine off) or IGNITION ON mode (engine running).
CAUTION
Caution while towing
Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive
stress on the emergency towing eyelet and the cables or chains. Always be
cautious of the surroundings and other vehicles while towing.
If the engine is not running, the power assist for the brakes and steering
will not function, making steering and braking more difficult.
NOTICE
To prevent causing serious damage to the transmission
Never tow this vehicle from the rear with four wheels on the ground. This
may cause serious damage to the transmission.
STEP1
STEP2
STEP3

5
421
5-1. Essential information
When trouble arises
IS F_EE
Towing with a wheel lift-type truck
From the front
Use a towing dolly under the
rear wheels.
From the rear
Turn the “ENGINE START
STOP” switch to the ACCES-
SORY mode so that the steering
wheel is unlocked.
NOTICE
To prevent causing serious damage to the transmission
Never tow this vehicle from the front with the rear wheels on the ground.
To prevent damaging the vehicle
Do not tow the vehicle from the rear with the “ENGINE START STOP”
switch OFF.
The steering lock mechanism is not strong enough to hold the front wheels
straight.
When raising the vehicle from the rear, ensure adequate ground clearance
for towing at the opposite end of the raised vehicle. Without adequate
clearance, the vehicle could be damaged while being towed from the rear.

426
5-2. Steps to take in an emergency
IS F_EE
Stop the vehicle immediately.
The following warning indicates the possibility of damage to the
vehicle that may lead to an accident. Immediately stop the vehicle
in a safe place and contact any authorized Lexus dealer or repairer,
or another duly qualified and equipped professional.
Have the vehicle inspected immediately.
Failing to investigate the cause of the following warnings may lead
to the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional,
immediately.
Warning lightWarning light/Details
Charging system warning light
Indicates a malfunction in the vehicle’s charging system.
Warning lightWarning light/Details
Malfunction indicator lamp
Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic automatic transmission control system.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner system.
ABS warning light
Indicates a malfunction in:
• The ABS; or
• The brake assist system.