2018 LEXUS NX300h wheel torque

250 4-5. Using the driving support systems
LEXUS NX300h Owners Manu-
al_USA_OM78212U ■
ECB (Electronically Controlled
Brake System)
The electronically controlled system
generates braking force correspond-
ing to the brake operation ■
ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the
brakes are applied suddenly, or if the
brakes are applied while driving on a
slippery road surface ■
Brake assist
Generates an increased level of brak-
ing force after the brake pedal is
depressed when the system detects a
panic stop situation ■
VSC (Vehicle Stability Control)
Helps the driver to control skidding
when swerving sudden ly or turning on
slippery road surfaces ■
Enhanced VSC (Enhanced Vehi-
cle Stability Control)
Provides cooperative control of the
ABS, TRAC, VSC and EPS. Helps to maintain directional stability
when swerving on slippery road sur-
faces by controlling steering perfor-
mance. ■
Trailer Sway Control
Helps the driver to control trailer sway
by selectively applying brake pressure
for individual wheels and reducing
driving torque when trailer sway is
detected. ■
TRAC (Traction Control)
Helps to maintain drive power and pre-
vent the drive wheels from spinning
when starting the vehicle or accelerat-
ing on slippery roads ■
Hill-start assist control
Helps to reduce the backward move-
ment of the vehicle when starting on an
uphill ■
EPS (Electric Power Steering)
Employs an electric motor to reduce
the amount of effort needed to turn the
steering wheel ■
E-Four
Electronic On-Demand AWD system.
Automatically switches from front-
wheel drive to all-wheel drive (AWD)
according to the driving conditions,
helping to ensure reliable handling and
stability. Examples of conditions where
the system will switch to AWD are
when cornering, going uphill, starting
off or accelerating, and when the road
surface is slippery due to snow, rain,
etc.Driving assist systems To keep driving safety and perfor-
mance, the following systems oper-
ate automatically in response to
various driving situations. Be aware,
however, that these systems are
supplementary and should not be
relied upon too heavily when oper-
ating the vehicle.
Summary of the driving assist
systems

382 7-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
al_USA_OM78212U 1 Remove 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 come off.
2 Install the spare tire and loosely
tighten each wheel nut by hand by
approximately the same amount. Tighten the wheel nuts until the tapered
portion comes into loose contact with
the disc wheel seat .
3 Install the wheel nut wrench in jack
handle.WARNING●
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, lead-
ing 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.
• 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.
• Do not attach a heavily damaged
wheel ornament, as it may fly off the
wheel while the vehicle is moving.
■
Replacing a flat tire for vehicles with
power back door
In cases such as when replacing tires,
make sure to turn off the power back
door main switch ( → P.119). Failure to do
so may cause the back door to operate
unintentionally if the power back door
switch is accidentally touched, resulting
in hands and fingers being caught and
injured.
Installing the spare tire A
B

3837-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
al_USA_OM78212U 7
When trouble arises 4 Lower the vehicle.
5 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)
6 Stow the flat tire, tire jack and all
tools. ■
The compact spare tire●
The compact spare tire is identified by the
label “TEMPORARY USE ONLY” on
the tire sidewall.
Use the compact spare tire temporarily,
and only in an emergency.
●
Make sure to check the tire inflation pres-
sure of the compact spare tire. ( → P.406)
■
After completing the tire change
The tire pressure warning system must be
reset. ( → P.341)
■
When using the compact spare tire
As the compact spare tire is not equipped
with a tire pressure warning valve and trans-
mitter, low inflation pressure of the spare
tire will not be indicated by the tire pressure warning system. Also, if you replace the
compact spare tire afte r the tire pressure
warning light comes on, the light remains
on. ■
When the compact spare tire is
equipped
The vehicle becomes lower when driving
with the compact spare tire compared to
when driving with standard tires. ■
If you have a flat front tire on a road cov-
ered with snow or ice
Install the compact spare tire on one of the
rear wheels of the vehicle. Perform the fol-
lowing steps and fit tire chains to the front
tires:
1 Replace a rear tire with the compact
spare tire.
2 Replace the flat front tire with the tire
removed from the rear of the vehicle.
3 Fit tire chains to the front tires.
WARNING■
When using the compact spare tire ●
Remember that the sp are tire provided
is specifically designed 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 br aking and shifting
operations that cause sudden engine
braking.

406 8-1. Specifications
LEXUS NX300h Owners Manu-
al_USA_OM78212U 
Type A

Type BTires and wheels Tire size 225/65R17 102H
Tire inflation pressure
(Recommended cold tire inflation
pressure) Driving under normal conditions 
Front
35 psi (240 kPa, 2.4 kgf/cm 2
or bar)
Rear
35 psi (240 kPa, 2.4 kgf/cm 2
or bar)
Driving at high speeds (above 100 mph [160 km/
h]) (in countries where such speeds are permitted
by law)
Add 1 psi (10 kPa, 0.1 kgf/cm 2
or bar) to the front
and rear tires. Never exceed the maximum cold tire
inflation pressure indica ted on the tire sidewall.
Wheel size 17 × 7 J
Wheel nut torque 76 ft•lbf (103 N•m, 10.5 kgf•m)
Tire size 225/60R18 100H
Tire inflation pressure
(Recommended cold tire inflation
pressure) Driving under normal conditions 
Front
32 psi (220 kPa, 2.2 kgf/cm 2
or bar)
Rear
32 psi (220 kPa, 2.2 kgf/cm 2
or bar)
Driving at high speeds (above 100 mph [160 km/
h]) (in countries where such speeds are permitted
by law)
Add 9 psi (60 kPa, 0.6 kgf/cm 2
or bar) to the front
and rear tires. Never exceed the maximum cold tire
inflation pressure indica ted on the tire sidewall.
Wheel size 18 × 7 1/2 J
Wheel nut torque 76 ft•lbf (103 N•m, 10.5 kgf•m)

4078-1. Specifications
LEXUS NX300h Owners Manu-
al_USA_OM78212U 8
Vehicle specifications 
Compact spare tire
A: Wedge base bulbs (clear)
B: Wedge base bulbs (amber) *
:If equippedTire size T165/80D17 104M
Spare tire inflation pressure
(Recommended cold tire inflation
pressure) 60 psi (420 kPa, 4.2 kgf/cm 2
or bar)
Wheel size 17 × 4 T
Wheel nut torque 76 ft•lbf (103 N•m, 10.5 kgf•m)
Light bulbs Light bulbs Bulb No. W Type
Exterior Front side marker lights (bulb
type) W5W 5 A
Front turn signal lights (bulb
type)* 585
(WY21W) 21 B
Interior Vanity lights ⎯ 8 A