2007 Lexus GS350 battery

172
2-5. Driving information
Winter driving tips
Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the vehicle in a manner appropriate to the
prevailing weather conditions.
■ Pre-winter preparations
●Use fluids that ar
e appropriate to the prevailing outside tempera -
tures.
• Engine oil
• Engine coolant
• Washer fluid
● Ha
ve a service technician inspect th e level and specific gravity of
battery electrolyte.
● Ha
ve the vehicle fitted with four snow tires or purchase a set of
tire chains for the rear tires.
Ensure that all tires are the same si ze and brand, and that chains match
the size of the tires.

197
3-2. Using the air conditioning system and defogger
3
Interior features
CAUTION
■To prevent the windshield from fogging up
Do not use during cool air operation in extremely humid weather. The differ-
ence between the temperature of the outs ide air and that of the windshield can
cause the outer surface of the windshield to fog up, blocking your vision.
NOTICE
■To prevent battery discharge
Do not leave the automatic air conditioning system on longer than necessary when
the engine is not running.

198
3-2. Using the air conditioning system and defogger
Rear window and outside rear view mirror defoggers
■Operating conditions
The engine switch must be in the “IG-ON” mode.
CAUTION
■When the outside rear view mirror defoggers are on
Do not touch the rear view mirror surfaces , as they can become very hot and burn
you.
NOTICE
■To prevent battery discharge
Turn the defoggers off when the engine is not running.
These features are used to defog the rear window, and to remove rain-
drops, dew and frost from the outside rear view mirrors.
Press the button.
Press the button to turn on the
rear window and outside rear
view mirror defoggers. The
defoggers will automatically
turn off after approximately 15
minutes. Pressing the button
again also turns the defoggers
off.

201
3-3. Using the audio system
3
Interior features
CAUTION
■For vehicles sold in the U.S.A. and Canada
●Pa r t 1 5 o f t h e F CC Ru l e s
FCC Warning:
Any unauthorized changes or modifications to this equipment will void the user’s
authority to operate this device.
●Laser products
• Do not take this unit apart or attempt to make any changes yourself. 
This is an intricate unit that uses a lase r pickup to retrieve information from the
surface of compact discs. The laser is carefully shielded so that its rays remain
inside the cabinet. Therefore, never try to disassemble the player or alter any
of its parts since you may be exposed to laser rays and dangerous voltages.
• This product utilizes a laser. Use of controls or adjustments or pe rformance of procedures other than
those specified herein may result in hazardous radiation exposure.
NOTICE
■To prevent battery discharge
Do not leave the audio system on longer than necessary when the engine is not run-
ning.
■To avoid damaging the audio/video system
Take care not to spill drinks or other fluids over the audio system.

208
3-3. Using the audio system
■When the battery is disconnected
All preset stations are erased.
■Reception sensitivity
●Maintaining perfect radio reception at all times is difficult due to the continually
changing position of the antenna, differences in signal strength and surrounding
objects, such as trains, transmitters, etc.
●The radio antenna is mounted inside the rear window. To maintain clear radio
reception, do not attach metallic window tinting or other metallic objects to the
antenna wire mounted in side the rear window.
■Receiving XM® Satellite Radio
The optional Lexus genuine satellite radio tuner and antenna allows you to receive
and play XM
® Satellite Radio broadcasts. (Subscription is required. Available only
in the 48 contiguous United States.)
*
●XM® subscriptions 
For detailed information about XM® Satellite Radio or to subscribe, visit XM®
on the web at www.xmradio.com or call 1-877-515-3987.
●Radio ID 
You will need the radio ID when activating XM
® service or reporting a prob -
lem. Select “CH000” using the dial, and the receiver's 8-character ID
number will appear.
●Satellite tuner 
The tuner supports only Audio Services (Music and Talk) and the accompany -
ing Text Information of XM
® Satellite Radio.
*: Terms and services provided by XM® Satellite Radio are subject to change with -
out notice.

263
3-4. Using the hands-free system
3
Interior features
Status display
You can check such indicators as signal strength and battery charge on
the “Telephone” screen.
Connection status
Battery charge
Call area
Signal strength
IndicatorsConditions
Connection status
Blue: Good
Yellow: Bad
: Not connected
Battery charge: Full
: Low
Call area“Rm”: Roaming area
“Hm”: Home area
Signal strength
: Good
: Bad
: Not connected

264
3-4. Using the hands-free system
■When using the hands-free system
●The audio system and voice guidance are muted when making a call.
●If both parties speak at the same time it may be difficult to hear.
●If the received call volume is overly loud, an echo may be heard.
●Try to face the microphone as much as possible when speaking.
●In the following circumstances it may be difficult to hear the other party.
• When driving on unsealed roads
• When driving at high speeds
• If the window is open
• If the air-conditioning is blowing directly on the microphone
• If the air-conditioning is set to high
■Conditions under which the system will not operate
●If using a mobile phone that does not support Bluetooth®.
●If the mobile phone is switched off.
●If you are outside service range.
●If the mobile phon e is not connected.
●If the mobile phone's battery is low.
■Bluetooth® antenna
The antenna is built into the display. If the m
obile phone is behind the seat or in the
console box, or touching or covered by metal objects, connection status may dete -
riorate.
■Battery charge/Signal status
This display may not correspond exact ly w
ith the mobile phone itself.

307
3-5. Using the interior lights
3
Interior features
■To prevent battery discharge
If the interior lights, personal lights and st
eering spot light remain ON when the
door is not fully closed or the interior light switch in “DOOR” position, the lights will
go off automatically after 20 minutes.
■Customization
Setting (e.g. The time elapsed before lights
turn off) can be changed. (P. 5 2 6 )
Inside door handle lights
Rear personal lights (P. 308)
Rear interior lights
Door courtesy lights
Foot light
Front scuff light
When the instrument panel light control sw itch is turned to minimum, the foot
lights, inside door handle lights and shift lever light will turn off. ( P. 1 0 7 )