battery LEXUS RX350 2011 Service Manual

5

When trouble arises
561
5-2. Steps to take in an emergency
Sounds
once
⎯
(Flashes)
An attempt was
made to turn the
“ENGINE START
STOP” switch off
when the shift
lever was not in P.
To turn off the
engine, first shift
the shift lever to P
and then turn the
“ENGINE START
STOP” switch off.
⎯⎯
Po w e r w a s t u r n e d
off due to the
automatic power
off function.
Next time when
starting the
engine, increase
the engine speed
slightly and main-
tain that level for
approximately 5
minutes to
recharge the bat-
tery.

Sounds
once
⎯The electronic key
has a low battery.
Replace the elec-
tronic key battery.
(→P. 4 9 6 )
Interior
buzzer Exterior
buzzer
Wa r n i n g m e s s a g eDetailsCorrection
procedure

5

When trouble arises
577
5-2. Steps to take in an emergency
If the engine will not start
If the engine will not start even though correct starting procedures are
being followed (→P. 153), consider each of the following points.
nThe engine will not start, even though the starter motor operates
normally.
One of the following may be the cause of the problem:
lThere may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
lThe engine may be flooded.
Try to restart the engine again following correct starting proce-
dures. (→P. 1 5 3 )
lThere may be a malfunction in the engine immobilizer system.
(→P. 1 0 1 )
nThe starter motor turns over slowly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low vol-
ume.
One of the following may be the cause of the problem:
lThe battery may be discharged. (→P. 584)
lThe battery terminal connections may be loose or corroded.
nThe starter motor does not turn over.
The engine starting system may be malfunctioning due to an electri-
cal problem such as an open circuit or a blown fuse. However, an
interim measure is available to start the engine. (→P. 5 7 8 )

578
5-2. Steps to take in an emergency
Emergency start function
When the engine does not start, the following steps can be used as an
interim measure to start the engine if the “ENGINE START STOP” switch
is functioning normally:
Set the parking brake.
Shift the shift lever to P.
Turn the “ENGINE START STOP” switch to ACCESSORY
mode.
Press and hold the “ENGINE START STOP” switch for about 15
seconds while depressing the brake pedal firmly.
Even if the engine can be started using the above steps, the system may
be malfunctioning. Have the vehicle inspected by your Lexus dealer.
nThe starter motor does not turn over, the interior lights and head-
lights do not turn on, or the horn does not sound.
One of the following may be the cause of the problem:
lOne or both of the battery terminals may be disconnected.
lThe battery may be discharged. (→P. 584)
lThere may be a malfunction in the steering lock system.
Contact your Lexus dealer if the problem cannot be repaired, or if
repair procedures are unknown.
STEP1
STEP2
STEP3
STEP4

5

When trouble arises
581
5-2. Steps to take in an emergency
If the electronic key does not operate properly
Locking and unlocking the doors and key linked functions
Use the mechanical key (→P. 2 7 )
in order to perform the following
operations (driver’s door only):
Locks all the doors
Closes the windows and moon
roof (turn and hold)
Unlocks the door
Turning the key rearward unlocks
the driver's door. Turning the key
once again unlocks the other
doors.
Opens the windows and moon
roof (turn and hold)
If communication between the electronic key and vehicle is interrupted
(→P. 36) or the electronic key cannot be used because the battery is
depleted, the smart access system with push-button start and wireless
remote control cannot be used. In such cases, the doors can be opened or
the engine can be started by following the procedure below.

5

When trouble arises
583
5-2. Steps to take in an emergency
nStopping the engine
Shift the shift lever to P and press the “ENGINE START STOP” switch as you nor-
mally do when stopping the engine.
nReplacing the key battery
As the above procedure is a temporary measure, it is recommended that the elec-
tronic key battery be replaced immediately when the battery is depleted.
(→P. 4 9 6 )

584
5-2. Steps to take in an emergency
If the 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 a 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 vehicle by following the
steps below.
Open the hood. Remove the battery cover. (→P. 465)
Connect the jumper cables according to the following procedure:
Connect a positive jumper cable clamp to the positive (+) battery
terminal on your vehicle
Connect a positive jumper cable clamp to the positive (+) battery
terminal on the second vehicle
STEP1
STEP2

5

When trouble arises
585
5-2. Steps to take in an emergency
nStarting the engine when the battery is discharged
The engine cannot be started by push-starting.
nTo prevent battery discharge
lTurn off the headlights and the audio system while the engine is off.
lTurn off any unnecessary electrical components when the vehicle is running at a
low speed for an extended period, such as in heavy traffic.
nWhen the battery is removed or discharged
The power back door must be initialized. (→P. 6 3 0 )
Connect a negative cable clamp to the negative (-) battery terminal
on the second vehicle
Connect the clamp at the other end of the negative cable to a solid,
stationary, unpainted metallic point away from the battery and any
moving parts, as shown in the illustration.
Start the engine of the second vehicle. Increase the engine
speed slightly and maintain that level for approximately 5 min-
utes 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 start the
engine of your vehicle by turning the “ENGINE START STOP”
switch to IGNITION ON mode.
Once the vehicle’s engine has started, remove the jumper
cables in the exact reverse order from which they were con-
nected.
Once the engine starts, have the vehicle inspected at your Lexus
dealer as soon as possible.
STEP3
STEP4
STEP5
STEP6

586
5-2. Steps to take in an emergency
CAUTION
nAvoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable
gas that may be emitted from the battery:
lMake sure each jumper cable is connected to the correct terminal.
lDo not allow the “+” and “-” terminals of the jumper cables to come into contact
with each other.
lDo not smoke, use matches, cigarette lighters or allow open flame near the bat-
tery.
nBattery 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:
lWhen 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.
lDo not lean over the battery.
lIn 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.
lAlways wash your hands after handling the battery support, terminals, and other
battery-related parts.
lDo not allow children near the battery.
NOTICE
nWhen handling jumper cables
When connecting the jumper cables, ensure that they do not become entangled in
the cooling fans or belt.

600
6-1. Specifications
Electrical system
Automatic transaxle
*:The fluid capacity is a reference quantity. If replacement is necessary, contact
your Lexus dealer.
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.
Fluid capacity*2WD6.8 qt. (6.5 L, 5.7 Imp. qt.)
AW D7.0 qt. (6.7 L, 5.9 Imp. qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
nAutomatic transmission fluid type
Using automatic transmission fluid other than “Toyota Genuine ATF WS” may
cause deterioration in shift quality, locking up of your transmission accompanied by
vibration, and ultimately damage the automatic transmission of your vehicle.

616
6-1. 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 tire
The 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 by two
We a t h e r s i d eThe surface area of the rim not covered by the
inflated tire