2019 LEXUS RC300 Owners Manual

2957-2. Steps to take in an emergency
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7
When trouble arises
Spare tire
Jack
Type B Jack handle
Wheel nut wrench
Screwdriver
Towing eyelet
Spare tire
Jack
E
F
A
B
C
D
E
F
WARNING
■Using the tire jack
Observe the following precautions.
Improper use of the tire jack may cause
the vehicle to suddenly fall off the jack,
leading to death or serious injury.
●Do not use the tire jack for any pur-
pose other than replacing tires or
installing and removing tire chains.
●Only use the tire jack that comes with
this vehicle for replacing a flat tire.
Do not use it on other vehicles, and do
not use other tire jacks for replacing
tires on this vehicle.
●Put the jack properly in its jack point.
●Do not put any part of your body under
the vehicle while it is supported by the
jack.
●Do not start the engine or drive the
vehicle while the vehicle is supported
by the jack.

2967-2. Steps to take in an emergency
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1Hold the hook and lift up the lug-
gage mat.
2
Secure the luggage mat using the
hook. 3
Remove the tool tray.
4
Take out the jack.
1
For tightening
2
For loosening
If the jack is too tightly installed to be
removed by hand, insert a tool, such as the
screwdriver included wi th the vehicle, into
the hole of the jack (portion ) and
loosen the jack.
1Secure the luggage mat using the
hook. ( P.296)
WARNING
●Do not raise the vehicle while some-
one is inside.
●When raising the vehicle, do not put an
object on or under the jack.
●Do not raise the vehicle to a height
greater than that required to replace
the tire.
●Use a jack stand if it is necessary to get
under the vehicle.
●When lowering the vehicle, make sure
that there is no-one near the vehicle. If
there are people nearby, warn them
vocally before lowering.
Taking out the jack
NOTICE
■To prevent damage to luggage mat
When closing the trunk lid, do not leave
the luggage mat lever hooked onthe
edge of the trunk.
Taking out the spare tire
A

2977-2. Steps to take in an emergency
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When trouble arises
2Remove the tool tray.
3
Loosen the center fastener that
secures the spare tire.
If the center fastener cannot be turned by
hand, use the wheel nut wrench that is
stored in the trunk. (To secure the tire,
tighten the center fastener by hand. Do not
use the wrench or other tools.)
1Chock the tires.
2
Slightly loosen the wheel nuts (one
turn).
3
Turn the tire jack portion by
hand until the notch of the jack is in
contact with the jack point.
The jack point guides are located under
the rocker panel. They indicate the jack
WARNING
■When storing the spare tire
Be careful not to catch fingers or other
body parts between the spare tire and
the body of the vehicle.
Replacing a flat tire
Flat tireWheel chock posi- tions
Front left-hand sideBehind the rear
right-hand side tire
Front right-hand
sideBehind the rear
left-hand side tire
Rear left-hand sideIn front of the front
right-hand side tire
Rear right-hand sideIn front of the front
left-hand side tire
A

2987-2. Steps to take in an emergency
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4Raise the vehicle until the tire is
slightly raised off the ground.
5
Remove all the wheel nuts and the
tire.
When resting the tire on the ground, place
the tire so that the wh eel design faces up to
avoid scratching the wheel surface.
1Remove any dirt or foreign matter
from the wheel contact surface.
If foreign matter is on the wheel contact
surface, the wheel nuts may loosen while
the vehicle is in motion, causing the tire to
WARNING
■Replacing a flat tire
●Do not touch the disc wheels or the
area around the brakes immediately
after the vehicle has been driven.
After the vehicle has been driven the
disc wheels and the area around the
brakes will be extremely hot. Touching
these areas with hands, feet or other
body parts while changing a tire, etc.
may result in burns.
●Failure to follow these precautions
could cause the wheel nuts to loosen
and the tire to fall of f, resulting in death
or serious injury.
• Never use oil or grease on the wheel bolts or wheel nuts.Oil and grease may
cause the wheel nuts to be excessively
tightened, leading to bolt or disc wheel
damage. In addition, the oil or grease
can cause the wheel nuts to loosen and
the wheel may fall off, causing a serious
accident. Remove any oil or grease
from the wheel bolts or wheel nuts.
• Have the wheel nuts tightened with a torque wrench to 76 ft•lbf (103 N•m,
10.5 kgf•m) as soon as possible after
changing wheels.
• Do not attach a heavily damaged wheel ornament, as it may fly off the
wheel while the vehicle is moving.
• When installing a tire, only use wheel nuts that have been specifically
designed for that wheel.
• If there are any cracks or deformations in the bolt screws, nut threads or bolt
holes of the wheel, have the vehicle
inspected by your Lexus dealer.
Installing the spare tire

2997-2. Steps to take in an emergency
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When trouble arises
come off.
2 Install the spare tire and loosely
tighten each wheel nut by hand by
approximately the same amount.
When replacing an aluminum wheel with a
steel wheel, tighten the wheel nuts until the
tapered portion comes into loose con-
tact with the disc wheel seat .
When replacing an aluminum wheel with
an aluminum wheel, turn the wheel nuts
until the washers come into contact
with the disc wheel .
3Lower the vehicle.
4 Firmly tighten each wheel nut two
or three times in the order shown in
the illustration.
Tightening torque:
76 ft•lbf (103 N•m, 10.5 kgf•m)
5Stow the flat tire, tire jack and all
tools.
■The spare tire
●The spare tire is identified by the label
“TEMPORARY USE ONLY” on the tire
sidewall.
●Use the spare tire temporarily, and only in
an emergency.
●Make sure to check the tire inflation pres-
sure of the spare tire. ( P.322)
■When using the spare tire
As the spare tire is not equipped with a tire
pressure warning valve and transmitter, low
inflation pressure of the spare tire will not be
indicated by the tire pressure warning sys-
tem. Also, if you replace the spare tire after
the tire pressure warning light comes on,
the light remains on.
A
B
A
B

3007-2. Steps to take in an emergency
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■When the spare tire is equipped
The vehicle becomes lower when driving
with the spare tire compared to when driv-
ing with standard tires.
■If you have a flat rear tire on a road cov-
ered with snow or ice (vehicles with
front and rear tires of the same size
except for vehicles with LDH and
19-inch tires)
Install the spare tire on one of the front
wheels of the vehicle. Perform the following
steps and fit tire chains to the rear tires:
1
Replace a front tire with the spare tire.
2
Replace the flat rear tire with the tire
removed from the front of the vehicle.
3
Fit tire chains to the rear tires.
WARNING
■When using the spare tire
●Remember that the spare tire provided
is specifically desi gned for use with
your vehicle. Do not use your spare
tire on another vehicle.
●Do not use more than one spare tire
simultaneously.
●Replace the spare tire with a standard
tire as soon as possible.
●Avoid sudden acceleration, abrupt
steering, sudden braking and shifting
operations that cause sudden engine
braking.
■When the spare tire is attached
The vehicle speed may not be correctly
detected, and the following systems may
not operate correctly:
• ABS & Brake assist
• VSC
• TRAC
• Dynamic radar cruise control
• PCS
• EPS
• Adaptive Variable Suspension System (if equipped)
• LDA (Lane Departure Alert with steering control)
• VGRS (if equipped)
• LDH (Lexus Dynamic Handling sys- tem) (if equipped)
• DRS (Dynamic Rear Steering) (if equipped)
• VDIM (Vehicle Dynamics Integrated Management)
• Tire pressure warning system
• Lexus parking assist monitor
• Intuitive parking assist (if equipped)
• Navigation system (if equipped)
Also, not only can the following system
not be utilized fully, bu t it may even nega-
tively affect the drive-train components:
• AWD system (if equipped)
■Speed limit when using the spare tire
Do not drive at speeds in excess of 50
mph (80 km/h) when a spare tire is
installed on the vehicle.
The spare tire is not designed for driving
at high speeds. Failure to observe this
precaution may lead to an accident caus-
ing death or serious injury.
■After using the tools and jack
Before driving, make sure all the tools
and jack are securely in place in their
storage location to reduce the possibility
of personal injury during a collision or
sudden braking.

3017-2. Steps to take in an emergency
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7
When trouble arises
One of the following may be the cause
of the problem:
 There may not be sufficient fuel in
the vehicle’s tank.
Refuel the vehicle.
 The engine may be flooded.
Try to restart the engine again fol-
lowing correct starting procedures.
( P.125)
 There may be a malfunction in the
engine immobilizer system.
( P.57)
One of the following may be the cause
of the problem:
 The battery may be discharged.
( P.306)
 The battery terminal connections
may be loose or corroded.
( P.253)
NOTICE
■Driving with tire chains and the spare
tire
Do not fit tire chains to the spare tire.
Tire chains may damage the vehicle body
and adversely affect driving perfor-
mance.
■When replacing the tires
When removing or fitting the wheels,
tires or the tire pressure warning valve
and transmitter, contact your Lexus
dealer as the tire pr essure warning valve
and transmitter may be damaged if not
handled correctly.
If the engine will not start
If the engine will not start even
though correct starting procedures
are being followed ( P.125), con-
sider each of the following points:
The engine will not start even
though the starter motor oper-
ates normally.
The starter motor turns over
slowly, the interior lights and
headlights are dim, or the horn
does not sound or sounds at a low
volume.

3027-2. Steps to take in an emergency
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The engine starting system may be
malfunctioning due to an electrical
problem such as electronic key battery
depletion or a blown fuse. However, an
interim measure is available to start the
engine. (P.302)
One of the following may be the cause
of the problem:
 One or both of the battery terminals
may be disconnected. ( P.253)
 The battery may be discharged.
( P.306)
 There may be a malfunction in the
steering lock system.
Contact your Lexus dealer if the problem
cannot be repaired, or if repair procedures
are unknown.
When the engine does not start, the
following steps can be used as an
interim measure to start the engine if
the engine switch is functioning nor-
mally:
1 Set the parking brake.
2 Shift the shift lever to P.
3 Turn the engine switch to ACCES-
SORY mode. 4
Press and hold the engine switch
for about 15 seconds while
depressing the brake pedal firmly.
Even if the engine can be started using
the above steps, the system may be
malfunctioning. Have the vehicle
inspected by your Lexus dealer.
The starter motor does not turn
over
The starter motor does not turn
over, the interior lights and head-
lights do not turn on, or the horn
does not sound.
Emergency start function