2007 Lexus GS350 battery

488
5-2. Steps to take in an emergency
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, Roadside Assistance or Lexus Customer
Se
rvice Assistance.
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.
GS350 only: Remove the engine compartment covers. 
( P. 3 7 8 )
Connecting the jumper cables.
If required, remove all vent pl ugs from the booster battery. Lay a
cloth over the open vents on the booster batter
y. (This helps reduce
the explosion hazard, personal injuries and burns.)
Positive (+) battery terminal on your vehicle.
Positive (+) battery terminal on the second vehicle.
Negative (-) battery terminal on the second v
ehicle.
Negative (-) battery terminal or your vehicle.
STEP1
STEP2
GS430
GS350

5
When trouble arises
489
5-2. Steps to take in an emergency
■Avoiding a discharged battery
●Turn off the headlights and the audio system while the engine is turned off.
●Turn off any unnecessary electrical compon ents when the vehicle is running at a
low speed for an extended period, such as in heavy traffic, etc.
■When the battery is removed or discharged
The following systems must be initialized.
●Po w e r w i n d o w s (P. 4 3 )
●Variable gear ratio steering (P. 1 5 9 )
●Tire pressure warning system (P. 3 9 3 )
●Intuitive parking assist (P. 1 3 6)
Start the engine of the second vehicle. Increase the engine
speed slightly and maintain at that level for approximately five
minutes to recharge the battery of your vehicle.
Open and close any of the doors with the engine s
witch “OFF”.
Maintain the engine speed on th e second v
ehicle and turn the
engine switch to the “IG-ON” mode, then start the vehicle’s
engine.
Once the vehicle’s engine ha s star
ted, remove the jumper
cables in the exact reverse ord er in which they w
ere con-
nected.
Once the engine starts, have the ve hicle check
ed at your Lexus dealer
as soon as possible.
STEP3
STEP4
STEP5
STEP6

490
5-2. Steps to take in an emergency
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 pa rt 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 we ar 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.

503
6-1. Specifications
6
Vehicle specifications
Electrical system
Differential
Battery
Open voltage at
68F (20 C):12.6  12.8V Fully charged 
12.2  12.4V Half charged 
11.8  12.0V Discharged 
(Voltage is checked 20 minutes after
the engine and all lights are turned off.)
Charging rates5A max.
GS430GS350 (2WD)GS350 (4WD)
Oil capacity1.42 qt. 
(1.35 L, 1.19 lmp.qt.)1.42 qt. 
(1.35 L, 1.19 lmp.qt.)
Front: 0.73 qt. 
(0.70 L, 0.61 lmp.qt.)
Rear: 1.42 qt. 
(1.35 L, 1.19 lmp.qt.)
Oil type and
viscosityToyota Genuine Synthetic Differential Gear Oil
API GL-5 SAE 75W-85

517
6-1. Specifications
6
Vehicle specifications
Tire related termMeaning
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 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
Vehicle maximum load on
the tireThe load on an individual tire that is determined by
distributing to each axle its share of the maximum
loaded vehicle weight, and dividing by two
Vehicle normal load on
the tire
The load on an individual tire that is determined by
distributing to each axle its share of curb weight,
accessory weight, and normal occupant weight (dis-
tributed in accordance with Table 1
* below), and
dividing it by two

527
6
Vehicle specifications
6-3. Initialization
Items to initialize
ItemWhen to initializeReference
Pow e r w i n d ow
• After reconnecting or changing the battery
• After changing a fuse
P. 4 4
Variable gear ratio
steeringP. 1 4 8
Intuitive parking assistP. 1 4 8
Engine oil maintenance
data• After changing engine oilP. 3 8 2
Tire pressure warning
system
• When rotating the tires on vehicles differing with front and rear tire infla-
tion pressures.
• When changing the tire inflation pressure by changing traveling speed
or load weight, etc.
• When changing the tire size.
P. 3 9 3
After reconnecting or performing main tenance on the battery, the follow-
ing items must be initialized for normal system operation.

532
Alphabetical index
Alphabetical index
A/C (Air conditioning system) ........190
ABS (Anti-lock Brake System) ........ 159
Active stabilizer suspension 
system...................................................... 159
Air conditioning system (A/C) Air conditioning filter ....................... 407
Automatic air conditioning 
system ................................................... 190
Airbags Airbag operating conditions........... 63
Airbag precautions for your 
child.......................................................... 67
Airbag warning light ........................ 450
Curtain shield airbag 
precautions .......................................... 70
Front passenger occupant 
classification system.......................... 72
General airbag precautions ........... 67
Locations of airbags............................ 59
Modification and disposal of 
airbags ...................................................... 71
Side airbag precautions .................... 67
Side and curtain shield airbags 
operating conditions ....................... 63
SRS airbags ............................................. 59
Alarm ............................................................ 54
Antenna ................................................... 208
Armrest ..................................................... 327
Ashtrays .................................................... 320
Audio system Antenna .................................................. 208
Cassette player....................................... 211
CD player/changer ........................... 216
DVD information ............................... 253
DVD player/changer...................... 233
DVD video/audio ............................. 236
MP3/WMA disc ............................... 224Optimal use .........................................
258
Radio ....................................................... 202
Steering switches ............................... 262
Video CD .............................................. 249
Automatic headlight leveling 
system ....................................................... 118
Automatic light control system.......... 116
AVS (Adaptive Variable 
Suspension System) .......................... 158
BA (Brake Assist).................................. 159
Back-up lights Wattage ................................................. 508
Battery Checking............................................... 387
If the vehicle battery is 
discharged .........................................492
Preparing and checking 
before winter.......................................172
Bluetooth
®..............................................265
Brake Fluid .......................................................... 386
Parking brake........................................ 105
Care Exterior ................................................... 358
Interior..................................................... 360
Seat belts ................................................. 361
Cargo capacity....................................... 168
Cargo hooks ............................................ 331
CD player/changer............................. 233
Chains ......................................................... 174
Child-protectors........................................ 18
Child restraint system (CRS)
Definition ................................................... 78
Installation .................................................. 81
A
B
C

533
Alphabetical index
Installing CRS with lower 
anchorages .......................................... 86
Installing CRS with seatbelts .......... 82
Installing CRS with top straps ........ 87
Child safety Airbag precautions .............................. 67
Child restraint system ........................ 78
Child-protectors..................................... 18
How your child should wear the seat -
belt............................................................ 36
Installing child restraints ...................... 81
Moon roof ................................................ 48
Power window lock switch .............. 43
Power window precautions............ 45
Removed electronic key battery 
precautions ......................................... 412
Seat belt comfort guide...................... 34
Seat belt precautions........................... 37
Seat heater precautions ..... 323, 325
Trunk............................................................ 24
Cigarette lighter ..................................... 321
Cleaning Exterior ................................................... 358
Interior..................................................... 360
Seat belts ................................................. 361
Clock........................................................... 318
Coin holder .............................................. 313
Compass ................................................. 339
Condenser.............................................. 385
Console box.............................................. 311
Cooling system Engine overheating .......................... 496Cruise control
Cruise control........................................ 124
Dynamic radar cruise control........ 127
Cup holders ............................................. 314
Curtain shield airbags............................ 59
Customizable features ....................... 523
Daytime running light system ............. 117
Defogger Rear window ......................................... 198
Side mirror.............................................. 198
Dimension................................................ 498
Dinghy towing ......................................... 178
Display Multi-informatio n display
..................113
Touch screen ........................................ 180
Trip information ..................................... 114
Warning message ............................ 455
Do-it-yourself maintenance ............. 369
Door courtesy lights ............................ 307
Door pocket............................................. 315
Doors Door lock .................................................... 17
Rear door child protector ................. 18
Driver's seat belt reminder light ..... 452
Driving Correct posture..................................... 57
Procedures .............................................. 90
DVD player/changer.......................... 233
Electronic key Replacing battery.................................. 411
If the electronic key does not 
operate properly ........................... 489
D
E