2007 Lexus GS350 transmission

422
4-3. Do-it-yourself maintenance
FuseAmpereCircuit
9ECU-IG LH10
VSC system, ECB system, Yaw rate
and G sensor, Steering sensor,
Cruise control system, Dynamic
radar cruise control system, EPS sys-
tem, VGRS system, Rear view moni-
tor system, Four-wheel drive system,
Front controller, Moon roof, Rain sen-
sor
10FR S/HTR LH15Seat heater or Heated and ventilated
seats
11RR DOOR LH20
Rear left door control system (Power
door lock system, Door courtesy
light, Power window)
12FR DOOR LH20
Front left door control system (Power
door lock system, Power rear view
mirror control system, Door courtesy
light, Outside rear view mirror heater,
Po w e r w i n d o w )
13RAD NO.310Audio system
14H-LP LVL7. 5AFS, Automatic headlight leveling
control system
15LH-IG10
Charging system, Headlight clean-
ers, Exhaust gas sensor, Rear window
defogger, Electric cooling fans, Rear
left door control system, Front left
door control system, Emergency
flashers, Automatic transmission,
Seat belt pretensioners, Intuitive
parking assist
16FR WIP30Windshield wipers and washer

438
5-1. Essential information
If your vehicle needs to be towed
Before towing
The following may indicate a problem with your transmission. Contact
your Lexus dealer before towing.
● The engine is running, but the v
ehicle will not move.
● The v
ehicle makes an abnormal sound.
Emergency towing
If a tow truck is not available, in an emergency your vehicle may be tem -
porarily towed using a cable or ch ain secur
ed to the emergency towing
eyelet. This should only attempted on hard, surfaced roads for short dis-
tances at low speeds. 
A driver must be in the vehicle to steer and oper
ate the brakes. The vehi-
cle’s wheels, drive train, axles, steering and br
akes must be in good condi -
tion.
If towing is necessary, we recommen d having your vehicle towed by your
Lexus dealer or a commercial towing service, using a lift-type truck or a flat
bed truck.

Use a safety chain system for all towing , a
nd abide by all state/provincial
and local laws.
The wheels and axle on the ground must be in good condition. 
If they are damaged, use a to wing dolly
or flat bed truck.

5
When trouble arises
439
5-1. Essential information
Towing eyelet
■Emergency towing procedureRelease the parking brake.
Put the shift lever in “N”.
The engine switch must be in the “ACC” mode (engine off) or the “IG-
ON” mode (engine on).
CAUTION
■Caution while towing
●Use extreme caution when towing the vehicle. 
Avoid sudden starts or erratic driving maneuvers which place excessive stress on
the emergency towing eyelet and the cable or chain.
●If the engine is not running, the power assi st for the brakes and steering will not
function, making steering and braking more difficult.
NOTICE
■To prevent causing serious damage to the transmission
Never tow this vehicle from the front with the rear wheels on the ground. 
This may cause serious dama ge to the transmission.
STEP1
STEP2
STEP3

442
5-1. Essential information
Towing with a wheel lift-type truck
From frontUse a towing dolly under the rear
wheels.
NOTICE
■To prevent causing serious damage to the transmission
Never tow this vehicle from the front with the rear wheels on the ground.

5
When trouble arises
447
5-1. Essential information
Event data recorder
In a crash or a near car crash event
The EDR may record some or all of the following information.
●Engine speed
● Whether the br
ake pedal was applied or not
● V
ehicle speed
●T
o what extent the accelerator pedal was depressed
●P
osition of the transmission shift lever
●Whether the driv
er and front passenger wore seat belts or not
● D
river's seat position
●SRS airbag deplo
yment data
● SRS airbag s
ystem diagnostic data
Your Lexus’ Electronic Control U nit (ECU) may contain another EDR.
Ther
e are a variety of driving situation s which include activating the vehi -
cle stability control (VSC) under whic h the V
SC EDR will record certain
information. The VSC EDR may record so me or all of the following infor-
mation:
● Behavior of the v
ehicle
● Steering wheel angle
●Vehicle speed
Your vehicle has computers that monitor and control certain aspects of
your vehicle. These computers assist in driving and maintaining optimal
vehicle performance.
Besides storing data useful for troublesh ooting, there is a system to record
data in a crash or a near car crash event. This is called an Event Data
Recorder (EDR).

450
5-2. Steps to take in an emergency
Stop the vehicle immediately.
The following warning indicates the possibility of damage to the vehicle
that may lead to an ac cident. Immediately stop the vehicle in a safe place
and contact your Lexus dealer.
Have the vehicle inspected by y our Lexus dealer immediately.
Failing to investigate the cause of the following warnings may lead to the
system operating abnormally and possibly cause an accident. Have the
vehicle inspected by your Lexus dealer immediately.
Warning lightWarning light/Details
Charging system warning light
Indicates a malfunction in the vehicle’s charging system.
Warning lightWarning light/Details
(U.S.A.)

(Canada)
Malfunction indicator lampMalfunction in:
• The electronic engine control system;
• The electronic throttle control system; or
• The transmission control system.
SRS warning lightMalfunction in:
• The SRS airbag system;
• Front passenger occupant classification system; or
• The seat belt pretensioner system.

466
5-2. Steps to take in an emergency
Wa r n i n g m e s s a g eDetailsCorrection procedure
(Flashing)
(If equipped)
Yo u r v e h i c l e i s n e a r i n g
the vehicle ahead (in
radar cruise mode).Slow the vehicle by apply-
ing the brakes.
(Flashing)
The transmission is out of
“P” when attempting to
start the engine.Shift the shift lever to “P”
before pressing the
engine switch.
■After changing the engine oil (U.S.A. only)
Make sure to reset the oil maintenance data. ( P.
3 8 2 )
■Approach warning message
In the following instances, there is the possibil
ity that the approach warning will not
activate even when the vehicle-to-vehicle distance decreases.
●When your vehicle and the vehicle ahead are traveling at the same speed or the
vehicle ahead is traveling more quickly than your vehicle.
●When the vehicle ahead is traveling at a very low speed.
●Immediately after cruise control speed is set.
●At the instant the accelerator pedal is depressed.

468
5-2. Steps to take in an emergency
Other messages
If the following message is displayed, take appropriate action and confirm
that the message has disappeared.
MessageDetails
(Flashing)
The driver’s door is opened when the transmission is
out of “P” with the engine on.
Shift the shift lever to “P”.
(If equipped)
Calibrate the neutral position of the steering wheel.
( P. 1 4 8 )