2008 Lexus GS350 air filter

439
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U
May 13, 2008 5:14 pm
■Checking interval
Inspect and replace the air conditioning filter according to the maintenance sched-
ule. In dusty areas or areas with heavy traffic flow, early replacement may be
required. (For scheduled maintenance information, refer to the “Warranty and Ser-
vices Guide/Owner’s Manual Supplement/Scheduled Maintenance”.)
■If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
NOTICE
■To prevent damage to the system
●When using the air conditioning system, make sure that a filter is always installed.
●When cleaning the filter, do not clean the filter with water.

449
4-3. Do-it-yourself maintenance
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Maintenance and care
GS_G_U
May 13, 2008 5:14 pm
FuseAmpereCircuit
18VGRS40VGRS
19MAIN30H-LP R LWR and H-LP L LWR
20STARTER30Starting system
21LH J/B-B30FL DOOR, RL DOOR and RAD
NO.3
22VVT40Electronic engine control system
23EPS80EPS
24ALT180
RH J/B-AM, LH J/B-AM, E/G-AM,
RR JB, HEATER, DEFOG, FAN1,
FAN2, ABS2, ABS MOTOR, 
ABS MAIN1, and ABS MAIN2
25RH J/B-AM80
AM1, OBD, STOP SW, TI&TE, 
PWR OUTLET, FR P/SEAT RH, 
STR LOCK, ECU-IG RH, RH-IG, 
ACC, CIG, SECURITY, 
FR S/HTR RH and AIR SUS
26FA N 380Electric cooling fans
27LH J/B-AM80
S/ROOF, P/SEAT, TV, FL S-HTR,
ECU-IG L, WIP, H-LP LVL, LH-IG,
FUEL OPN, A/C, PANEL, LH-B and
TRK OPN
28ABS230ABS
29DEFFOG50Rear window defogger, noise filter
30CDS40CDS

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4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U
May 13, 2008 5:14 pm
FuseAmpereCircuit
24RR J/B80
STOP LP R, STOP LP L, RR-B, 
RR TAIL, RR FOG, RR-IG1, PSB, 
and RR S/SHADE
25GLW PLG150Starting system
26RH J/B-AM80
AM1, OBD, STOP SW, TI&TE, 
PWR OUTLET, FR P/SEAT RH, 
STR LOCK, ECU-IG RH, RH-IG, 
ACC, CIG, SECURITY, 
FR S/HTR RH and AIR SUS
27ABS230ABS
28DEFFOG50Rear window defogger, noise filter
29CDS40CDS
30FA N 140Electric cooling fans
31HEATER50Air conditioning system
32GLW PLG250Starting system
33E/G-AM60H-LP CLN, FR CTRL ALT, A/C
COMP and STB-AM
34LH J/B-AM80
S/ROOF, P/SEAT, TV, FL S-HTR,
ECU-IG L, WIP, H-LP LVL, LH-IG,
FUEL OPN, A/C, PANEL, LH-B and
TRK OPN
35FA N 260Electric cooling fans

456
4-3. Do-it-yourself maintenance
GS_G_U
May 13, 2008 5:14 pm
GS350
FuseAmpereCircuit
1FR CTRL-B25H-LP UPR and HORN
2A/F15Exhaust system
3ETCS10Electronic throttle control system
4ALT-S7. 5 Charging system
5H-LP CLN30Headlight cleaner
6A/C COMP7. 5 Air conditioning system
7DEICER25
8FR CTRL-AM30FR TAIL, FR FOG and WASHER
9IG210Ignition system and noise filter
10EFI NO.210Fuel system and exhaust system

584
GS_G_U
May 13, 2008 5:14 pm
Alphabetical index
Alphabetical index
A/C ..............................................................217
ABS.............................................................. 184
ACCESSORY mode .......................... 122
Active stabilizer suspension 
system...................................................... 184
Adaptive variable 
suspension system ............................. 183
Air conditioning system Air conditioning filter ....................... 437
Automatic air conditioning 
system .................................................... 217
Airbags Airbag operating conditions........... 83
Airbag precautions for 
your child............................................... 87
Airbag warning light ........................489
Curtain shield airbag 
precautions .......................................... 90
General airbag precautions ........... 87
Locations of airbags............................80
Modification and disposal of 
airbags ...................................................... 91
Proper driving posture ...................... 78
Side airbag precautions .................... 87
Side and curtain shield airbags 
operating conditions ....................... 83
SRS airbags .............................................80
Alarm ............................................................ 75
Antenna ....................................................235
Anti-lock brake system ....................... 184
Armrest .....................................................356
Ashtrays ..................................................... 351 Audio system
Antenna.................................................. 235
AUX adapter .......................................287
Cassette player .................................. 238
CD player/changer .......................... 242
DVD information ...............................270
DVD player/changer ....................... 251
DVD video/audio............................. 254
MP3/WMA disc................................ 247
Optimal use ......................................... 282
Radio ........................................................229
Steering switches .............................. 288
Video CD ............................................. 266
Automatic headlight leveling 
system ......................................................144
Automatic light control system.........142
Automatic transmission If the shift lever cannot be 
shifted from “P” ............................... 524
Mode select switch ............................ 126
S mode ......................................................127
AUX adapter ......................................... 287
Back-up lights Wattage ................................................. 552
Battery 12 volt battery ........................................ 417
Checking................................................. 417
If the 12 volt battery is 
discharged ........................................ 529
Preparing and checking 
before winter...................................... 199
Bluetooth
®.............................................. 296
A
B