2012 Lexus IS250 ECU

369
3-7. Other interior features
3
Interior features
IS350/250_U
CAUTION
■While driving the vehicle
Do not adjust the display. Be sure to adjust the display only when the vehicle is
stopped.
■When doing the circling calibration
Be sure to secure a wide space, and watch out for people and vehicles in the neigh-
borhood. Do not violate any local traffic rules while performing circling calibration.
NOTICE
■To avoid compass malfunctions
Do not place magnets or any metal objects near the inside rear view mirror.
Doing this may cause a malfunction of the compass sensor.
■To ensure normal operation of the compass
●Do not perform circling calibration of the compass in a place where the earth's
magnetic field is subject to interference by artificial magnetic fields.
●During calibration, do not operate electric systems (moon roof, power windows,
etc.) as they may interfere with the calibration.

370
3-7. Other interior features
IS350/250_U
Safety Connect∗
∗: If equipped
Safety Connect is a subscription-based telematics service that uses Global
Positioning System (GPS) data and embedded cellular technology to pro-
vide safety and security features to subscribers. Safety Connect is sup-
ported by Lexus’ designated response center, which operates 24 hours per
day, 7 days per week.
Safety Connect service is available by subscription on select, telematics
hardware-equipped vehicles.
By using the Safety Connect service, you are agreeing to be bound by the
Telematics Subscription Service Agreement and its Terms and Conditions,
as in effect and amended from time to time, a current copy of which is avail-
able at Lexus.com. All use of the Safety Connect service is subject to such
then-applicable Terms and Conditions.
■ System components
Microphone
LED light indicators
“SOS” button

388
4-2. Maintenance
IS350/250_U
Vehicle interior
ItemsCheck points
Accelerator pedal• Moves smoothly (without uneven pedal effort or catching)?
Automatic transmission “Park”
mechanism• Can the vehicle be held securely on an incline with the shift lever in
P?
Brake pedal
• Moves smoothly?
• Does it have appropriate clearance and correct amount of free play?
Clutch pedal• Moves smoothly?
Brakes
• Not pull to one side when applied?
• Loss of brake effectiveness?
• Spongy feeling brake pedal?
• Pedal almost touches floor?
Head restraints• Move smoothly and lock securely?
Indicators/buzzers•Function properly?
Lights
• Do all the lights come on?
• Headlights aimed correctly? (→ P. 4 4 9 )
Parking brake
• Moves smoothly?
• Can hold the vehicle securely on
an incline?
Seat belts
• Does the seat belt system operate smoothly?
• Are the belts undamaged?
Seats• Do the seat controls operate prop- erly?

400
4-3. Do-it-yourself maintenance
IS350/250_U■
Installing the clips
Press the tip of the clip against a
hard surface, such as a desk, to
allow the center part of the clip
to be pushed up.
Insert
Press
NOTICE
■After installing an engine compartment cover
Make sure that the cover is securely installed in its original position.

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4-3. Do-it-yourself maintenance
4
Maintenance and care
IS350/250_U■
Adding distilled water
Remove the vent plug.
Add distilled water.
If the “UPPER LEVEL” line cannot be seen, check the fluid level by
looking directly at the cell.
Put the vent plug back on and close securely.
Low O.K.
■Before recharging
When recharging, the battery produces hydrogen gas which is flammable and
explosive. Therefore, before recharging:
●If recharging with the battery installed on the vehicle, be sure to disconnect the
ground cable.
●Make sure the power switch on the charger is off when connecting and discon-
necting the charger cables to the battery.
■After recharging/reconnecting the battery
In some cases, the engine may not start. Follow the procedure below to initialize the
system.
Shift the shift lever to “P” (automatic transmission) or depress the brake
pedal with the shift lever in N (manual transmission), and turn the
“ENGINE START STOP” switch OFF.
Open and close any of the doors.
Start the engine. (If the engine does not start first time, repeat the proce-
dure.)
If the engine will not start even after multiple attempts at the above method, contact
your Lexus dealer.
STEP1
STEP2
STEP3
STEP1
STEP2
STEP3

440
4-3. Do-it-yourself maintenance
IS350/250_U
10E/G-B60 AFR CTRL-B, ETCS, ALT-S, A/F, STR
LO C K
11DIESEL GLW80 A
12ABS150 AVDIM
13RH J/B-B30 AFR DOOR RH, RR DOOR RH, AM2
14MAIN30 AH-LP R LWR, H-LP L LWR
15STARTER30 ASmart access system with push-button
start
16LH J/B-B30 AFR DOOR LH, RR DOOR LH,
SECURITY
17P/ I - B60 AEFI, F/PMP, INJ
18EPS80 APo w e r s t e e r i n g
19ALT150 A
LH J/B-AM, E/G-AM, GLW PLG2,
HEATER, FAN1, FAN2, DEFOG,
ABS2, RH J/B-AM, GLW PLG1,
LH J/B-B, RH J/B-B
20GLW PLG150 APTC heater
21RH J/B-AM80 A
OBD, STOP SW, TI&TE, FR P/SEAT
RH, RAD NO.3, ECU-IG RH,
RH-IG, FR S/HTR RH, ACC, CIG,
PWR OUTLET
22ABS230 AVDIM
23DEFOG50 ARear window defogger
24FA N 240 AElectric cooling fans
25FA N 140 AAir conditioning system
26HEATER50 AAir conditioning system
27GLW PLG250 APTC heater
FuseAmpereCircuit

441
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS350/250_U
28E/G-AM60 AH-LP CLN, FR CTRL AM, A/C
COMP DEICER
29LH J/B-AM80 A
S/ROOF, FR P/SEAT LH, TV NO.1,
A/C, FUEL OPEN, PSB, FR WIP,
H-LP LVL, LH-IG, ECU-IG LH,
PANEL, TAIL, TV NO.2, MIR HTR,
FR S/HTR LH
FuseAmpereCircuit

444
4-3. Do-it-yourself maintenance
IS350/250_U■
Driver’s side instrument panel
FuseAmpereCircuit
1FR P/SEAT LH30 APo w e r s e a t
2A/C7. 5 AAir conditioning system
3MIR HTR15 AOutside rear view mirror defoggers
4TV NO.110 ADisplay
5FUEL OPEN10 AFuel filler door opener
6TV NO.27. 5 A
7PSB30 A
8S/ROOF25 AMoon roof
9TA I L10 ATail lights, license plate lights, parking
lights
10PA N E L7. 5 ASwitch illumination, air conditioning
system, display, audio
11RR FOG7. 5 A
12ECU-IG LH10 A
Cruise control, air conditioning sys-
tem, power steering, rain sensor, anti-
glare inside rear view mirror, shift lock
system, moon roof, tire inflation pres-
sure warning system, VSC
13FR S/HTR LH15 ASeat heaters and ventilators