2007 Lexus GS350 engine

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

492
5-2. Steps to take in an emergency
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 and car efully lif
t the hood.
If you do not see steam: Leave the engine running and carefully lift the hood.
Remove the engine compartment cover. ( P. 3 7 8 )
Check to see if the cooling fan is operating.
If the fan is operating: 
Wait until the engine coolant temperature gauge begins to
fall and then stop the engine.
If the fan is not operating: 
Stop the engine immediately and call y
our local Lexus
dealer.
After the engine has cooled
do
wn sufficiently, check the
coolant level and inspect the
radiator core (radiator) for any
leaks.
STEP1
STEP2
STEP3
STEP4
STEP5

5
When trouble arises
493
5-2. Steps to take in an emergency
■Overheating
In the following situations, your vehicle may be overheating.
●The engine coolant temperature gauge enters the red zone or a loss of power is
experienced.
●Steam is coming from under the hood.
CAUTION
■To prevent an accident or injury when in specting under the hood of your vehicle
●Keep hands and clothing away from the fan and engine drive belt while the
engine is running.
●Do not loosen the radiator cap while the engine and radiator are hot. 
Serious injury, such as burns, may resu lt from hot coolant and steam released
under pressure.
Add coolant if required.
Water can be used in an emer -
gency measure if coolant is
una
vailable. ( P. 5 0 2 )
Have the vehicle checked at your nearest Lexus dealer as soon as pos-
sible.
STEP6

494
5-2. Steps to take in an emergency
NOTICE
■When adding engine coolant
Wait until the engine has cooled down before adding engine coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot engine too quickly
can cause damage to the engine.

5
When trouble arises
495
5-2. Steps to take in an emergency
If the vehicle becomes stuck
CAUTION
■When attempting to free a stuck vehicle
If you choose to rock the vehicle back and forth to free it, make sure the surround-
ing area is clear, to avoid striking other vehicles, objects or persons. The vehicle
may also lunge forward or lunge back suddenly as it becomes free. Use extreme
caution.
■When shifting the shift lever
Be careful not to shift the shift lever with the accelerator pedal depressed.
This may lead to unexpected rapid acceleration of the vehicle that may cause an
accident and result in death or serious injury.
NOTICE
■To avoid damaging the transmission and other components
●Avoid spinning the wheels and do not rev the engine.
●If the vehicle remains stuck after trying these procedures, the vehicle may require
towing to be freed.
Carry out the following procedures if the tires spin or the vehicle becomes
stuck in mud, dirt, or snow.
Stop the engine. Set the parking brake and shift the shift lever
in “P”.
Remove the mud, snow, or sand fr
om around the stuck tire.
Place wood, stones or some ot her material to help pr
ovide
traction under the tires.
Restart the engine.
Shift the shift lever to the “D” or “R” position and carefully apply
the accelerator to free the vehicle.
Turn off TRAC/VSC if these functions ar
e hampering your
attempts to free the vehicle. (  P. 1 6 1 )
STEP1
STEP2
STEP3
STEP4
STEP5

499
6-1. Specifications
6
Vehicle specifications
Vehicle identification
The vehicle identification number (VIN) is the legal identifier for your
vehicle. This is the primary identification number for your Lexus. It is used
in registering the ownership of your vehicle.
This number is stamped on the top left of the instrument panel and in the
engine compartment.
This number is also on the Certifi-
cation Label.
The engine number is stamped on the engine block as shown.
GS430GS350

500
6-1. Specifications
Engine
Fuel
GS430GS350
Model3UZ-FE2GR-FSE
Ty p e8-cylinder V type, 4-
cycle, gasoline6-cylinder V type, 4-
cycle, gasoline
Bore and stroke3.58  3.25 in. 
(91.0  82.5 mm)3.70  3.27 in. 
(94.0  83.0 mm)
Displacement262.0 cu.in. (4293 cm3)210.9 cu.in. (3456 cm3)
Drive belt tensionAutomatic adjustment
Fuel typePremium unleaded gasoline only
Octane Rating91 (Research Octane Number 96) or higher
Fuel tank capacity18.7 gal. (71 L, 15.6 lmp.gal)