2012 Lexus HS250h low beam

473
4-3. Do-it-yourself maintenance
4
Maintenance and care
HS250h_U_75050U
10P CON MAIN7. 5 A
P position control system, hybrid sys-
tem, smart access system with push-
button start
11AM27. 5 A
Smart access system with push-button
start, hybrid system, multiport fuel
injection system/sequential multiport
fuel injection system, P position con-
trol system, cruise control system,
dynamic radar cruise control system
12ECU-B27. 5 A
Smart access system with push-button
start, multiport fuel injection system/
sequential multiport fuel injection sys-
tem, trunk opener switch
13MAYDAY10 AMAYDAY
14ECU-B310 AAir conditioning system, rear window
defogger, mirror heater
15TURN & HAZ10 ATurn signal lights, emergency flashers
16ETCS10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
17ABS MAIN NO.120 AElectronically controlled brake system
18P/ I 240 A
P position control system, hybrid sys-
tem, transmission, smart access sys-
tem with push-button start, horn,
headlights (low beam), back-up lights
19ABS MTR 130 AElectronically controlled brake system
20ABS MTR 230 AElectronically controlled brake system
21H-LP HI MAIN20 AHeadlights (high beam)
22AMP NO.230 AAudio system, navigation system
FuseAmpereCircuit

481
4-3. Do-it-yourself maintenance
4
Maintenance and care
HS250h_U_75050U
Light bulbs
You may replace the following bulbs by yourself. The difficulty level of
replacement varies depending on the bulb. If necessary bulb replacement
seems difficult to perform, contact your Lexus dealer.
For more information about replacing other light bulbs, contact your Lexus
dealer.
■ Preparing for light bulb replacement
Check the wattage of the light bulb to be replaced. ( →P. 568)
■ Remove the engine compartment covers
→ P. 4 3 8
■ Front bulb locations
Halogen headlights
Front side marker light Headlight low beam
Parking light
Front turn signal light
Front fog lightHeadlight high beam
and daytime running light

484
4-3. Do-it-yourself maintenance
HS250h_U_75050UTurn the bulb base counterclock-
wise.
Unplug the connector while
depressing the lock release.
■ Headlight low beams (halogen headlights)
Turn the bulb base counterclock-
wise.
Unplug the connector while
depressing the lock release.

491
4-3. Do-it-yourself maintenance
4
Maintenance and care
HS250h_U_75050U■
Lights other than the above
If any of the lights listed below has burnt out, have it replaced by your
Lexus dealer.
● Headlight low beams (LED headlight type)
● Side turn signal lights
● Stop/tail lights
● Tail lights
● Rear side marker lights
● High mounted stoplight
● Outer foot lights
■When replacing the front righ t headlight, front turn signal lights and parking light
bulbs
■LED light bulbs
The headlight low beams (LED headlights type), side turn signal lights, rear side
marker lights, stop/tail lights, tail lights and high mounted stoplight consist of a num-
ber of LEDs. If any of the LEDs burn out, take your vehicle to your Lexus dealer to
have the light replaced. Remove the securing clip and move the
washer fluid filler opening to allow easy
access to the light bulbs.
After replacing the bulbs, make sure to
secure the washer fluid filler opening with the
clip.

5
When trouble arises
505
5-2. Steps to take in an emergency
HS250h_U_75050U
Follow the correction procedures.After taking the specified steps to co rrect the suspected problem, check
that the warning light goes off.
(Flashes)
Automatic High Beam indicator light (if equipped)
Indicates a malfunction in the automatic high beam system
→ P. 1 9 6
Warning lightWarning light/DetailsCorrection procedure
Open door warning light
(warning buzzer)
*1
Indicates that a door or the
trunk is not fully closed.
Check that all the doors and
the trunk are closed.
Low fuel level warning light
Indicates remaining fuel is
approximately 2.2 gal. (8.3
L, 1.8 Imp. gal.) or less
Refuel the vehicle.
Driver’s seat belt reminder
light (warning buzzer)
*2
Warns the driver to fasten
his/her seat belt.Fasten the seat belt.
(On the center panel)
Front passenger’s seat belt
reminder light
(warning buzzer)
*2
Warns the front passenger to
fasten his/her seat belt.
Fasten the seat belt.
Master warning light
A buzzer sounds and the
warning light comes on and
flashes to indicate that the
master warning system has
detected a malfunction.
→ P. 5 1 2
Warning lightWarning light/Details

568
6-1. Specifications
HS250h_U_75050U
Light bulbs
A: HB3 halogen bulbs
B: Double end bulbs
C: Wedge base bulbs (clear)
D: Wedge base bulbs (amber)
E: H11 halogen bulbs
F: Single end bulbs
Light BulbsBulb No.WTy p e
Exterior
LED headlights
High beam
Halogen headlights
High beam
Low beam
9005
9005
H1160
6055A
A E
Front side marker lightsW5W5C
Front turn signal lights3457NA28 /8F
Parking lightsW5W5C
Front fog lightsH1155E
Rear turn signal lightsWY21W21D
Back-up lightsW16W16C
License plate lightsW5W5C
Outer foot lights5C
Interior
Vanity lights8C
Front interior lights/Personal lights8C
Rear interior light8B
Tr u n k l i g h t3.8C
Door courtesy lights5C

627
What to do if...
HS250h_U_75050U
■Warning lights
*1: Slip indicator comes on.
*2: The light flashes to indicate a malfunction.
P. 5 0 4
or
P. 5 0 2P. 5 0 4
P. 5 0 2P. 5 0 4
P. 5 0 3P. 5 0 4
P. 5 0 3P. 5 0 4
P. 5 0 5
or
P. 5 0 3P. 5 0 5
P. 5 0 3P. 5 0 5
P. 5 0 5
or
P. 5 0 3P. 5 0 5
P. 5 0 4P. 5 0 5
P. 5 0 4P. 5 0 6
Brake system warning light“AFS OFF” indicator light*2
Slip indicator light*1
Charging system warning
light“LKA” indicator light*2
High engine coolant temperature
warning lightCruise control indicator
light*2
Brake system warning lightRadar cruise control
indicator light*2
Malfunction indicator lampAutomatic High Beam
indicator light*2
Open door warning light
SRS warning lightLow fuel level warning light
“ABS” warning lightDriver’s seat belt reminder
light
Front passenger’s seat belt
reminder light
Electric power steering system warning lightMaster warning light
“PCS” warning light*2Tire pressure warning light