2013 Lexus IS250 charging

5
When trouble arises
501
5-2. Steps to take in an emergency
■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.
■Charging the battery
The electricity stored in the battery will discharge gradually even when the vehicle
is not in use, due to natural discharge and the draining effects of certain electrical
appliances. If the vehicle is left for a long time, the battery may discharge, and the
engine may be unable to start. (The batt ery recharges automatically during driving.)
■When the battery is removed or discharged
Make sure that the key is not inside the vehicle when recharging or replacing the
battery. The key may be locked in the vehicle if the alarm is activated. ( P. 9 4 )
Maintain the engine speed of th e second vehicle and turn the
“ENGINE START STOP” switch to IGNITION ON mode,
then start the vehicle’s engine.
Once the vehicle’s engine ha s started, remove the jumper
cables in the exact reverse ord er in which they were con-
nected.
Once the engine starts, have the ve hicle checked at your Lexus dealer
as soon as possible.STEP5
STEP6

518
6-1. Specifications
Electrical system
DifferentialFront
Rear
*: Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the factory. Use Lexus approved “Toyota Genuine Differential Gear Oil” or an
equivalent oil of matching quality that satisfies the above specifications. Please
contact your Lexus dealer for further details.
Battery
Open voltage* at
68 F (20 C):12.6 12.8 V Fully charged
12.2 
12.4 V Half charged
11.8 
12.0 V Discharged
(*: Voltage checked 20 minutes after
the engine and all the lights are turned
off)
Charging rates5 A max.
Oil capacity0.74 qt. (0.70 L, 0.61 Imp. qt.)
Oil typeHypoid gear oil API GL-5
Oil viscosityAbove 0 F (-18 C): SAE90
Below 0 F (-18 C): SAE80W or SAE80W-90
Oil capacity
IS350:
1.42 qt. (1.35 L, 1.19 Imp. qt.)
IS250: 1.20 qt. (1.15 L, 1.01 Imp. qt.)
Oil type and viscosity*Toyota Genuine Differential Gear Oil LT 75W-85
GL-5 or equivalent

580
Alphabetical index
USB port*.................................................... 254
Vanity lights Vanity lights ............................................331
Wattage.................................................. 525
Vanity mirrors ......................................... 331
VDIM ............................................................191
Vehicle data recordings .........................21
Vehicle dynamics integrated management ..........................................191
Vehicle identification number ............511
Vehicle stability control.........................191
Ventilators ................................................ 341
Voice command switch* ................... 292
VSC ...............................................................191 Warning buzzers
Brake system ....................................... 463
Open door .......................................... 465
Seat belt reminder ............................ 465
Warning lights Anti-lock brake system .................. 464
Brake assist system .......................... 464
Brake system ....................................... 463
Charging system ............................... 464
Electric power steering warning light..................................... 464
Low fuel level....................................... 465
Malfunction indicator lamp .......... 464
Master warning light........................ 465
Open door ........................................... 465
Pretensioners ...................................... 464
Seat belt reminder light .................. 465
SRS airbags .......................................... 464
Tire pressure warning light........................................................ 465U
V
W

583
What to do if...
A warning light or indicator
light comes onP. 4 6 3If a warning light turns on or a warning
buzzer sounds...
■Warning lights
or or
P. 4 6 3P. 4 6 4
P. 4 6 5
or
P. 4 6 4P. 4 6 5
P. 4 6 5P. 4 6 5
P. 4 6 4P. 4 6 4
P. 4 6 5P. 4 6 5
P. 4 6 4P. 4 6 4
Brake system warning lightMalfunction indicator lamp
ABS warning lightDriver’s seat belt reminder
light
Front passenger’s seat belt
reminder light
Low fuel level warning lightMaster warning light
SRS warning lightElectric power steering system
warning light
Open door warning lightTire pressure warning light
Charging system warning
lightSlip indicator
A warning message is dis-
playedP. 4 7 3If a warning message is displayed