2012 Lexus ES350 battery

5
When trouble arises
477
5-2. Steps to take in an emergency
ES350_U
If the vehicle battery is discharged
The following procedures may be used to start the engine if the vehicle’s
battery is discharged.
You can call your Lexus dealer or qualified repair shop.
If you have a set of jumper (or booster) cables and a second vehicle
with a 12-volt battery, you can jump start your Lexus following the steps
below.
Remove the cover.
Connecting the jumper cables. Positive (+) battery terminal on your vehicle
Positive (+) battery terminal on the second vehicle
Negative (-) battery terminal on the second vehicle
Connect the jumper cable to ground on your vehicle as shown in the
illustration.
STEP1
STEP2

478
5-2. Steps to take in an emergency
ES350_U
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■Avoiding a discharged battery
●Turn off the headlights and the audio system while the engine is turned 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 vehi-
cle 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 dis-
charge, and the engine may be unable to start. (The battery recharges automat-
ically during driving.)
Start the engine of the second vehicle. Increase the engine
speed slightly and maintain at that level for approximately 5
minutes to recharge the battery of your vehicle.
Open and close any of the doors with the “ENGINE START
STOP” switch OFF.
Maintain the engine speed of the second vehicle and turn the
“ENGINE START STOP” switch to the 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.STEP3
STEP4
STEP5
STEP6

5
When trouble arises
479
5-2. Steps to take in an emergency
ES350_U
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.
■Battery precautions
The battery contains poisonous and corrosive acidic electrolyte, while related parts
contain lead and lead compounds. Observe the following precautions when han-
dling the battery.
●When working with the battery, always wear safety glasses and take care not to
allow any battery fluids (acid) to come into contact with skin, clothing or the vehi-
cle body.
●Do not lean over the battery.
●In the event that battery fluid comes into contact with the skin or eyes, immedi-
ately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention can be
received.
●Always wash your hands after handling the battery support, terminals, and other
battery-related parts.
●Do not allow children near the battery.
NOTICE
■When handling jumper cables
Be careful that the jumper cables do not become tangled in the cooling fan or any
of the belts when connecting or disconnecting them.

491
6-1. Specifications
6
Vehicle specifications
ES350_U
Ignition system
Electrical system
Spark plug
MakeDENSO
Gap
FK20HR11
0.043 in. (1.1 mm)
NOTICE
■Iridium-tipped spark plugs
Use only above spark plugs. Do not adjust gaps for your engine performance or
smooth driveability.
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 is checked 20 minutes after
the engine and all the lights are turned
off)
Charging rates5 A max.

505
6-1. Specifications
6
Vehicle specifications
ES350_U
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipped, air conditioning and
additional weight optional engine
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows
Occupant distributionDistribution of occupants in a vehicle as specified in
the third column of Table 1
* below
Production options
weight
The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously
considered in curb weight or accessory weight,
including heavy duty brakes, ride levelers, roof rack,
heavy duty 12-volt battery, and special trim
RimA metal support for a tire or a tire and tube assembly
upon which the tire beads are seated
Rim diameter
(Wheel diameter)Nominal diameter of the bead seat
Rim size designationRim diameter and width
Rim type designationThe industry manufacturer's designation for a rim by
style or code
Rim widthNominal distance between rim flanges
Vehicle capacity weight
(Total load capacity)The rated cargo and luggage load plus 150 lb. (68
kg) times the vehicle's designated seating capacity
Tire related termMeaning

519
6
Vehicle specifications
ES350_U
6-3. Initialization
Items to initialize
ItemWhen to initializeReference
Maintenance data
(USA only)After the maintenance is performedP. 365
Tire pressure warning
systemWhen changing the tire inflation pres-
sure by changing traveling speed or
load weight, etc.
P. 3 9 2
After reconnecting or performing maintenance on the battery, the follow-
ing items must be initialized for normal system operation.

539
Alphabetical index
ES350_U
Back-up lightsReplacing light bulbs ....................... 420
Wattage ................................................. 495
Battery
Checking ............................................... 387
If the vehicle battery is discharged .........................................477
Preparing and checking
before winter ......................................196
Bluetooth
® audio* .............................. 260
Bluetooth® phone*..............................279
Brake
Fluid .......................................................... 384
Parking brake ........................................ 136
Brake assist .............................................. 182
Break-in tips ...............................................121 Care
Exterior................................................... 358
Interior ...................................................... 361
Seat belts ................................................362
Cargo capacity....................................... 192
Cargo hooks.......................................... 338
CD changer* .......................................... 224
CD player* .............................................. 224
Chains ........................................................ 198
Child restraint system Booster seats, definition .................. 104
Booster seats, installation ................... 111
Convertible seats, definition .......... 104
Convertible seats, installation ........... 111
Front passenger occupant classification system .........................99
Infant seats, definition ........................ 104
Infant seats, installation ......................... 111
Installing CRS with lower anchorages......................................... 109
Installing CRS with seat belts ............ 111
Installing CRS with top straps......... 114
BC
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.

540
Alphabetical index
ES350_U
Child safetyAirbag precautions.............................. 94
Battery precautions ............. 388, 479
Child restraint system....................... 104
Child-protectors ................................... 43
How your child should wear
the seat belt .......................................... 62
Installing child restraints .................. 108
Moon roof precautions ...................... 77
Power window lock switch.............. 70
Power window precautions .............72
Removed electronic key
battery precautions ...................... 408
Seat belt comfort guide..................... 60
Seat belt extender precautions ..... 64
Seat belt precautions .......................... 62
Seat heater precautions ...... 328, 331
Trunk precautions ................................ 48
Child-protectors ...................................... 43
Cigarette lighter.................................... 326 Cleaning
Exterior ................................................... 358
Interior....................................................... 361
Seat belts ................................................362
Clock ......................................................... 324
Coat hooks.............................................. 336
Compass .................................................. 346
Condenser .............................................. 384
Console box ............................................. 317
Cooling system Engine overheating.......................... 480
Cornering assist sensors ..................... 176
Cruise control Cruise control.......................................160
Dynamic radar crui se control....... 164
Cup holders ..............................................319
Curtain shield airbags ...........................88
Customizable features .......................... 511