2011 Lexus IS F air condition

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.

5
423
5-1. Essential information
When trouble arises
IS F_EE
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional, as soon
as possible.
Visible symptoms
Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is nor-
mal.)
Flat-looking tires or uneven tire wear
Engine coolant temperature gauge needle continually points
higher than normal
Audible symptoms
Changes in exhaust sound
Excessive tire squeal when cornering
Strange noises related to the suspension system
Pinging or other noises related to the engine
Operational symptoms
Engine missing, stumbling or running rough
Appreciable loss of power
Vehicle pulls heavily to one side when braking
Vehicle pulls heavily to one side when driving on a level
road

5
465
5-2. Steps to take in an emergency
When trouble arises
IS F_EE
If your vehicle overheats
If your engine overheats:
Stop the vehicle in a safe place and turn off the automatic
air conditioning system.
Check to see if steam is coming out from under the hood.
If you see steam:
Stop the engine. Carefully lift the hood after the steam
subsides and then restart the engine.
If you do not see steam:
Leave the engine running and carefully lift the hood.
Check to see if the cooling fans are operating.
If the fans are operating:
Wait until the temperature of the engine (shown on the
instrument cluster) begins to fall and then stop the
engine.
If the fans are not operating:
Stop the engine immediately and call any authorized
Lexus dealer or repairer, or another duly qualified and
equipped professional.
After the engine has cooled
down sufficiently, check the
engine coolant level and
inspect the radiator core
(radiator) for any leaks.
If the engine compartment
cover needs to be removed:
STEP1
STEP2
STEP3
STEP4

Index
489
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Abbreviation list ....................... 490
Alphabetical index.................... 491
What to do if... ......................... 502
For vehicles with a navigation system, refer to the
“Navigation System Owner’s Manual” for informa-
tion regarding the equipment listed below.
• Navigation system
• Audio/video system
• Air conditioning
• Rear window and outside rear view mirror defogging
• Climate control
• Lexus parking assist-sensor

491
IS F_EE
Alphabetical index
Alphabetical index
A/C* ..........................................228
ABS ...........................................206
ACCESSORY mode .................146
Air conditioning filter ...............386
Air conditioning system
Air conditioning filter ...........386
Automatic air conditioning
system.................................228
Airbags
Airbag manual ON/OFF
system.................................135
Airbag operating conditions .107
Airbag precautions for your
child....................................111
Airbag warning light ............426
Curtain shield airbag operating
conditions ...........................107
Curtain shield airbag
precautions .........................111
General airbag precautions ...111
Locations of airbags .............105
Modification and disposal of
airbags ................................115
Proper driving posture ..103, 111
Side airbag operating
conditions ...........................107
Side airbag precautions.........111
SRS airbags ..........................105Alarm .......................................... 97
Antenna* .................................. 244
Anti-lock brake system............. 206
Armrest ..................................... 341
Ashtrays .................................... 336
Audio input* ............................. 277
Audio system*
Antenna................................ 244
Audio input .......................... 277
AUX port ............................. 277
Bluetooth
® audio ................. 279
CD player/changer ............... 245
iPod ...................................... 260
MP3/WMA disc................... 252
Optimal use .......................... 275
Portable music player .......... 277
Radio.................................... 241
Steering wheel audio switch 278
USB memory ....................... 268
USB port ...................... 260, 268
Automatic air conditioning
system* .................................. 228
Automatic headlight leveling
system .................................... 174
Automatic light control system 172
A
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s