2012 Lexus IS250C roof

471
4-3. Do-it-yourself maintenance
4
Maintenance and care
■ Trunk
FuseAmpereCircuit
1DEFOG30 ARear window defogger
2ROOF RH30 ARetractable hardtop
3ROOF LH30 ARetractable hardtop
4LGG RH30 ARetractable hardtop
5LGG LH30 ARetractable hardtop
6LGG LCK RH30 ARetractable hardtop
7LGG LCK LH30 ARetractable hardtop
8P-T R AY M A I N30 ARetractable hardtop
9P-T R AY S I D E7. 5 ARetractable hardtop
10PSB30 APre-collision seat belt
■After a fuse is replaced
●If the lights do not turn on even afte r the fuse has been replaced, a bulb may
need replacement. ( P. 475)
●If the replaced fuse blows again, have the vehicle inspected by your Lexus
dealer.
■If there is an overload in the circuits
The fuses are designed to blow, protecting the wiring harness from damage.

5
When trouble arises
509
5-2. Steps to take in an emergency
•The roof switch was operated when there
was an obstacle behind
the vehicle.
• Operation of the retractable hardtop was
suspended due to an
obstacle being detected
behind the vehicle.
When the roof switch is
pressed again within two
seconds of message
being displayed, message will be displayed.
( P. 8 6 )
The roof switch was
pressed while the trunk lid
was open.
Close the trunk lid.
The roof switch was
pressed while the trunk lid
opener main switch was
turned off.
Turn the trunk lid opener
main switch on. ( P. 5 1 )
The roof switch was
pressed while the vehicle
was moving.
( P. 8 6 )
The roof switch was
pressed while there was
not enough power.
Start the engine
MessageDetailsCorrection procedure

510
5-2. Steps to take in an emergency
The roof switch was
pressed while the lug-
gage cover was not in the
correct position.
( P. 8 6 )
Indicates that the parking
brake is still engaged.
flashes and a
buzzer sounds to indi-
cate that the parking
brake is still engaged
(with the vehicle having
reached a speed of 3
mph [5 km/h]).
Release the parking
brake.
Indicates that the washer
fluid level is low.Add washer fluid.
Indicates that engine oil
level is low.Check the level of engine
oil, and add if necessary.
MessageDetailsCorrection procedure

552
5-2. Steps to take in an emergency
Using an open-end wrench, turn
the six-sided part of the silver rod
as far as possible.
The plate brackets will rise up.
Using a hexagon wrench, remove
the 2 bolts and lock on the left and
right sides of the vehicle.
The lock on the left side of the vehi-
cle can be removed. However, the
lock on the right side of the vehicle
cannot be removed completely as
it is attached to a wire harness.
Holding the parts in the same
places as those shown in the illus-
tration, carefully raise the roof
panel and move it toward the front
of the vehicle.
Performing this procedure by hold-
ing parts other than those indi-
cated may result in damage to the
vehicle or serious injury.
Let go of the roof panel once it
begins to lower on its own.
The roof panel will not lower com-
pletely.
STEP 14
STEP 15
STEP 16

5
When trouble arises
553
5-2. Steps to take in an emergency
Remove the forward lock cover
located on the ceiling.
Insert the end of the hexagon
wrench and turn it counterclock-
wise as far as possible to release
the forward lock.
The roof panel will be fully lowered.
Be careful not to catch your hands
or fingers between the roof panel
and vehicle body when releasing
the lock.
Turn the hexagon wrench clock-
wise as far as possible to lock the
roof panel.
Do not forcibly turn the wrench
beyond the stopping point.
STEP 17
STEP 18
STEP 19

554
5-2. Steps to take in an emergency
Holding the parts in the same
places as those shown in the illus-
trations, carefully raise the rear
window panel until it comes into
contact with the roof panel.
Performing this procedure by hold-
ing parts other than those indi-
cated may result in damage to the
vehicle or serious injury.
If the rear window panel cannot be
raised, move it lightly up and down
2 or 3 times.
Be careful not to catch your hand
or fingers between the roof panel
and rear window panel.
Remove the rearward lock cover
located on the ceiling.
Insert the end of the hexagon
wrench and turn it clockwise as far
as possible to lock the rear window
panel and the roof panel.
Do not forcibly turn the wrench
beyond the stopping point.
STEP 20
STEP21
STEP22

589
6-1. Specifications
6
Vehicle specifications
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows
Production options
weight
The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously
considered in curb weight or accessory weight,
including heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special trim
Vehicle capacity weight
(Total load capacity)The rated cargo and luggage load plus 150 lb. (68
kg) times the vehicle's designated seating capacity
Occupant distributionDistribution of occupants in a vehicle as specified in
the third column of Table 1
* below
Recommended inflation
pressureCold tire inflation pressure recommended by a man-
ufacturer.
RimA metal support for a tire or a tire and tube assembly
upon which the tire beads are seated
Rim diameter
(Wheel diameter)Nominal diameter of the bead seat
Rim size designationRim diameter and width
Rim type designationThe industry manufacturer's designation for a rim by
style or code
Tire related termMeaning

627
Alphabetical index
Side mirrorAdjusting and folding ..........................79
Mirror position memory ..................... 61
Smart access system with push-button startEntry function ..........................................32
Starting the engine..............................148
“SOS” button ......................................... 394
Spare tire Inflation pressure ................................447
Storage location.................................. 518
Spark plug ............................................... 568
Specifications......................................... 560
Speedometer Speed indicator ....................................166
Speedometer ........................................166
Steering wheel Adjustment ...............................................76
Audio switches ................................... 306
Steering wheel positionmemory ................................................... 61
Storage feature ....................................... 361 Stuck
If your vehicle becomes stuck .... 545
Sun visors .................................................368
Switch All window control switch ................ 82
ECT switch............................................. 154
Emergency flasher switch ............ 486
Engine switch ........................................ 148
ETCS switch ............................................ 161
Fog light switch .................................... 185
Hazard light switch .......................... 486
Ignition switch ....................................... 148
Light switches ......................................... 181
Power door lock switch .................... 47
Power window switch ........................ 82
Roof switch...............................................86
Satellite switches...................................371
Transmission shift switches ......................................155, 157
Window lock switch............................83
Wiper and washer switch............... 187