2010 Lexus GS350 Owner's Manual

568
5-2. Steps to take in an emergency
GS_G_U (OM30C80U)
January 27, 2010 4:47 pm
If the engine will not start
If the engine will not start even though correct starting procedures are
being followed (→P. 135), consider each of the following points.
■The engine will not start even if you are carrying the correct elec-
tronic key
One of the following may be the cause of the problem.
●There may not be sufficient fuel in the vehicle’s tank.
Add fuel to the vehicle.
● The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. ( →P. 135)
● There may be a malfunction in the immobilizer system. ( →P. 8 5 )
■ The 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.
● The 12 volt battery may be discharged. ( →P. 5 74 )
● The 12 volt battery terminal connections may be loose or corroded.
■ The starter motor does not turn ov er, 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.
● One or both of the 12 volt battery terminals may be disconnected.
● The 12 volt battery may be discharged. ( →P. 5 74 )
Contact your Lexus dealer if the problem cannot be repaired, or if
repair procedures are unknown.
GS_U_G.book Page 568 Wednesday, January 27, 2010 4:48 PM

5
When trouble arises
569
5-2. Steps to take in an emergency
GS_G_U (OM30C80U)
January 27, 2010 4:47 pm
If the shift lever cannot be shifted from “P”
If the shift lever cannot be shifted with your foot on the brake, there may be
a problem with the shift lock system (a system to prevent accidental opera-
tion of the shift lever). Have the vehicle inspected by your Lexus dealer
immediately.
The following steps may be used as an emergency measure to ensure that
the shift lever can be shifted.
Set the parking brake.
Turn the “ENGINE START STOP” switch to the ACCESSORY
mode.
Depress the brake pedal.
Pry the cover up with a flathead
screwdriver or equivalent.
Press the shift lock override but-
ton.
The shift lever can be shifted
while the button is pressed.
STEP1
STEP2
STEP3
STEP4
STEP5
GS_U_G.book Page 569 Wednesday, January 27, 2010 4:48 PM

570
5-2. Steps to take in an emergency
GS_G_U (OM30C80U)
January 27, 2010 4:47 pm
If you lose your keys
New genuine Lexus keys can be made by your Lexus dealer using one of
the other keys and the key number stamped on your key number plate.
GS_U_G.book Page 570 Wednesday, January 27, 2010 4:48 PM

5
When trouble arises
571
5-2. Steps to take in an emergency
GS_G_U (OM30C80U)
January 27, 2010 4:47 pm
If the electronic key does not operate properly
Locking and unlocking the doors, unlocking the trunk and key linked
functions
Doors Using the mechanical key (
→P. 2 5 )
in order to perform the following
operations:
Locks all doors
Closes the windows/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/moon roof
(turn and hold)
If communication between the electronic key and vehicle is interrupted
(
→P. 33) 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 and trunk can be
opened or the engine can be started by following the procedure below.
GS_U_G.book Page 571 Wednesday, January 27, 2010 4:48 PM

572
5-2. Steps to take in an emergency
GS_G_U (OM30C80U)
January 27, 2010 4:47 pm
Tr u n kTurn the mechanical key clock-
wise to open.
Changing “ENGINE START STOP” sw itch modes and starting the
engine
Put the shift lever in “P” and apply the brakes. Touch the Lexus emblem side of
the electronic key to the
“ENGINE START STOP” switch.
An alarm will sound to indicate that
the start function cannot detect the
electronic key that is touched to
the “ENGINE START STOP”
switch if any of the doors is opened
and closed while the key is touched
to the switch.
To change the “ENGINE START STOP” switch modes: Within 10
seconds of the buzzer sounding, release the brake pedal and
press the “ENGINE START STOP” switch. Modes can be
changed each time the switch is pressed. (
→P. 1 3 6 )
To start the engine: Press the “ENGINE START STOP” switch
within 10 seconds after the buzzer sounds, keeping the brake
pedal depressed.
If the “ENGINE START STOP” switch still cannot be operated, contact
your Lexus dealer.
STEP1
STEP2
STEP3
GS_U_G.book Page 572 Wednesday, January 27, 2010 4:48 PM

5
When trouble arises
573
5-2. Steps to take in an emergency
GS_G_U (OM30C80U)
January 27, 2010 4:47 pm
■Stopping the engine
Shift the shift lever to “P” and press the “ENGINE START STOP” switch as you nor-
mally do when stopping the engine.
■Replacing 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 depletes. (→P. 4 8 2 )
GS_U_G.book Page 573 Wednesday, January 27, 2010 4:48 PM

574
5-2. Steps to take in an emergency
GS_G_U (OM30C80U)
January 27, 2010 4:47 pm
If the 12 volt battery is discharged
The following procedures may be used to start the engine if the 12 volt bat-
tery 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.
Open the door using the mechanical key, then open the hood.
GS350: Remove the engine compartment covers.
Connect the jumper cables.
GS460
STEP1
STEP2
GS_U_G.book Page 574 Wednesday, January 27, 2010 4:48 PM

5
When trouble arises
575
5-2. Steps to take in an emergency
GS_G_U (OM30C80U)
January 27, 2010 4:47 pm
GS350
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.Start the engine of the second vehicle. Increase the engine
speed slightly and maintain at that level for approximately 5
minutes to recharge the 12 volt battery of your vehicle.
Open and close any of the doors with the “ENGINE START
STOP” switch is OFF.
Maintain the engine speed on 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
GS_U_G.book Page 575 Wednesday, January 27, 2010 4:48 PM