2010 Lexus IS250C ECO mode

504
5-2. Steps to take in an emergency
10_IS250C/350C_UManual transmission
Shift the shift lever to N and depress the clutch pedal.
Touch the Lexus emblem side of
the electronic key to the
“ENGINE START STOP” switch.
An alarm will sound to indicate that
the start function cannot detect the
electronic key that is touched to
the “ENGINE START STOP”
switch if any of the doors is opened
and closed while the key is touched
to the switch.
To change “ENGINE START ST OP” switch modes: Within 10
seconds of the buzzer sounding, release the clutch pedal and
press the “ENGINE START STOP” switch. Modes can be
changed each time the switch is pressed.
(→ P. 142)
To start the engine: Press the “ENGINE START STOP” switch
within 10 seconds after the buzzer sounds, keeping the clutch
pedal depressed.
In the event that the engine still cannot be started, contact your Lexus
dealer.
STEP1
STEP2
STEP3

5
When trouble arises
507
5-2. Steps to take in an emergency
10_IS250C/350C_U
■Avoiding a discharged battery
●Turn off the headlights and the audio system while the engine is off.
●Turn off any unnecessary electrical components when the vehicle is running at a
low speed for an extended period, such as in heavy traffic, etc.
CAUTION
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable
gas that may be emitted from the battery.
●Make sure the jumper cable is connected to the correct terminal and that it is not
unintentionally in contact with any part other than the intended terminal.
●Do not allow the jumper cables to come into contact with the “+” and “-” termi-
nals.
●Do not allow open flame or use matches, cigarette lighters or smoke near the
battery.
Maintain the engine speed of the second vehicle and turn the
“ENGINE START STOP” switch to IGNITION ON mode,
then start the vehicle’s engine.
Once the vehicle’s engine has started, remove the jumper
cables in the exact reverse order in which they were con-
nected.
Once the engine starts, have the vehicle checked at your Lexus dealer
as soon as possible.STEP5
STEP6

554
6-1. Specifications
10_IS250C/350C_U
Tire related termMeaning
Intended outboard side-
wall
(a) The sidewall that contains a whitewall, bears
white lettering, or bears manufacturer, brand,
and/or model name molding that is higher or
deeper than the same molding on the other side-
wall of the tire, or
(b) The outward facing sidewall of an asymmetrical tire that has a particular side that must always
face outward when mounted on a vehicle
Light truck (LT) tire
A tire designated by its manufacturer as primarily
intended for use on lightweight trucks or multipur-
pose passenger vehicles
Load ratingThe maximum load that a tire is rated to carry for a
given inflation pressure
Maximum load ratingThe load rating for a tire at the maximum permissible
inflation pressure for that tire
Maximum permissible
inflation pressureThe maximum cold inflation pressure to which a tire
may be inflated
Measuring rimThe rim on which a tire is fitted for physical dimension
requirements
Open spliceAny parting at any junction of tread, sidewall, or
innerliner that extends to cord material
Outer diameterThe overall diameter of an inflated new tire
Overall width
The linear distance between the exteriors of the side-
walls of an inflated tire, including elevations due to
labeling, decorations, or protective bands or ribs
Passenger car tire
A tire intended for use on passenger cars, multipur-
pose passenger vehicles, and trucks, that have a
gross vehicle weight rating (GVWR) of 10000 lb. or
less.
PlyA layer of rubber-coated parallel cords

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Alphabetical index
10_IS250C/350C_U
Cruise controlCruise control ...................................... 183
Dynamic radar crui se control .......187
Cup holder ..............................................343
Customizable features .......................557
Daytime running light system ............174
Defogger
Rear window........................................ 238
Side mirror ............................................ 238
Dimension ................................................526
Dinghy towing .............................225, 226
Display Dynamic radar crui se control .......187
Satellite switch mode ....................... 349
Trip information ....................................169
Warning message..............................472
Do-it-yourself maintenance ............ 386
Door courtesy lights Door courtesy lights.........................338
Wattage....................................................541
Doors
Door lock................................ 28, 40, 43
Door windows ....................................... 78
Side mirrors ............................................. 75
Driver's seat belt reminder light .....465
Driving Correct posture .................................... 98
Procedures ............................................. 132
Driving position memory ...................... 56 Electric power steering...................... 204
Electronic key
If the electronic key does not operate properly..............................501
Emergency, in case of If the engine will not start ................497
If the retractable hardtop does not close ................................... 514
If the shift lever cannot be shifted from P................................... 499
If the vehicle has a discharged battery .................................................506
If the warning buzzer sounds...... 463
If the warning light turns on.......... 463
If the warning message is displayed ............................................. 472
If you have a flat tire ........................ 486
If you lose your keys ........................500
If you think something is wrong .................................................. 459
If the electronic key does not operate properly..............................501
If your vehicle becomes stuck ...... 512
If your vehicle needs to be towed ................................................... 453
If your vehicle overheats................509
Emergency flashers Switch...................................................... 452
Engine Compartment ......................................392
Engine switch ........................................ 142
Hood ....................................................... 389
How to start the engine ................... 142
Identification number .......................527
If the engine will not start ................497
Ignition switch ....................................... 142
Overheating ........................................509
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