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6-2. Maintenance
Head restraints• Do the head restraints movesmoothly and lock securely?
Indicators/buzzers• Do the indicators and buzzers func-tion properly?
Lights
• Do all the lights come on?
• Are the headlights aimed correctly? ( →P. 6 8 5 )
Parking brake
• Moves smoothly?
• When parked on a slope and the
parking brake is on, is the vehicle
securely stopped?
Seat belts
• Do the seat belts operate smoothly?
• The seat belts should not be dam-aged.
Seats• Do the seat controls operate prop-erly?
Steering wheel
• Does the steering wheel rotatesmoothly?
• Does the steering wheel have the correct amount of free play?
• There should not be any strange sounds coming from the steering
wheel.
ItemsCheck points
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GS450h_U (OM30D01U)
6776-3. Do-it-yourself maintenance
6
Maintenance and care
*: Low beam and high beam are the same bulb. (vehicles with discharge headlights)
52ABS NO.130ECB
53ECU-B NO.27. 5No circuit
54DEICER25Windshield wiper de-icer
55ABS MAIN 310Brake system
56FILTER10Condenser
57A/C W/P7. 5Air conditioning system
58SPARE10Spare fuse
59SPARE30Spare fuse
60SPARE20Spare fuse
FuseAmpereCircuit
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GS450h_U (OM30D01U)6-3. Do-it-yourself maintenance
6
Maintenance and care
Headlight aim
Make sure the vehicle has a full tank of gasoline and the area around
the headlight is not deformed.
Park the vehicle on level ground.
Sit in the driver’s seat.
Bounce the vehicle several times.
Vertical movement adjusting bolts
XDischarge headlights XLED headlights
Adjustment bolt A
Adjustment bolt B
Before checking the headlight aim
1
2
1
2
3
4
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GS450h_U (OM30D01U)
6-3. Do-it-yourself maintenance
Using a Phillips-head screwdriver, turn bolt A in either direction.
Remember the turning direction and the number of turns.
Turn bolt B the same number of turns and in the same direction as step.
If the headlight cannot be adjusted using this procedure, take the vehicle to your
Lexus dealer to adjust the headlight aim.
Adjusting the headlight aim
1
XDischarge headlights XLED headlights
2
1
XDischarge headlights XLED headlights
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