brakes SUBARU BRZ 2018 User Guide

5
When trouble arises
419
5-1. Essential information
BRZ_U (A4450BE-A)
If your vehicle needs to be towed
Emergency towingIf a tow truck is not available in an emergency, your vehicle may be
temporarily towed using a cable or chain secured to the emergency
towing eyelet to move the vehicle to a safe location or to free a stuck
vehicle from sand or snow. This should only be attempted on hard
surfaced roads for short distances at low speeds.
A driver must be in the vehicle to steer and operate the brakes. The
vehicle's wheels, drive train, axles, steering and brakes must be in
good condition.
For vehicles with an automatic transmission, only the front towing
eyelet may be used. Towing eyelet
If towing is necessary, we recommend having your vehicle towed by
your SUBARU dealer or a comme rcial towing service, using a flat
bed truck.
The vehicle must be secured properly with safety chains. Each
safety chain should be equally tightened and care must be taken not
to pull the chains so tightly that the suspension bottoms out.

420 5-1. Essential information
BRZ_U (A4450BE-A)
■Before emergency towing
Release the parking brake.
Shift the select lever to N (vehicles with an automatic transmission)
or shift lever to neutral (vehicles with a manual transmission).
Vehicles without a keyless access with push button start system:
Turn the engine switch to the “A CC” (engine off) or “ON” (engine
running) position.
Vehicles with a keyless access with push button start system: Turn
the push-button ignition switch to “ACC” (engine off) or “ON”
(engine running) mode.
■ If towing a vehicle
Do not tow another vehicle. If towing a vehicle that has broken down is
unavoidable, avoid towing a vehicle that is heavier than your vehicle. Also,
do not pull out a vehicle that has fallen into a ditch.
WARNING
■Caution while towing
●Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive
stress on the emergency towing eyelets and the cables or chains. Always
be cautious of the surroundings and other vehicles while towing.
● If the engine is not running, the power assist for the brakes and steering
will not function, making steering and braking more difficult.
STEP 1
STEP 2
STEP 3

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When trouble arises
421
5-1. Essential information
BRZ_U (A4450BE-A)
Installing towing eyelet
Remove the eyelet cover using a flathead screwdriver.
To prevent damage to the vehicle, cover the tip of the screwdriver
with a rag.
Front
CAUTION
■To prevent causing serious damage to the transmission in emergency
towing (vehicles with an automatic transmission)
Never tow a vehicle from the rear with four wheels on the ground. This may
cause serious damage to the transmission.
■ To prevent damage to the vehicle
● When towing this vehicle, make sure to observe the following:
• Do not use a wire rope
• Keep vehicle speed below 20 mph (30 km/h) and do not tow for dis-
tances over 19 miles (30 km)
• Tow the vehicle in the forward direction
• Do not apply rope to the vehicle's suspension and so forth
● Do not tow another vehicle, boat (trailer) and so forth, that is heavier than
this vehicle.
■ When towing down a long slope
Use a wheel lift-type or flat bed truck. ( →P. 424, 425)
If a wheel lift-type or flat bed truck is not used, the brakes may overheat,
leading to poor brake performance.
STEP 1

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When trouble arises
437
5-2. Steps to take in an emergency
BRZ_U (A4450BE-A)
WARNING
■If the tire pressure warning light comes on (if equipped)
Be sure to observe the following precautions. Failure to do so could
cause loss of vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire
inflation pressure immediately.
●If the tire pressure warning light comes on even after tire inflation pres-
sure adjustment, it is probable that you have a flat tire. Check the tires.
If the tire is flat, change to the spare tire and have the flat tire repaired
by the nearest SUBARU dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate,
you could lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur (vehicles with a tire
pressure monitoring system)
The tire pressure monitoring system may not activate immediately.

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When trouble arises
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5-2. Steps to take in an emergency
BRZ_U (A4450BE-A)
WARNING
■Replacing a flat tire
●Do not touch the disc wheels or the area around the brakes immedi-
ately 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.
●Do not attach a heavily damaged wheel ornament, as it may fly off the
wheel while the vehicle is moving.
●Failure to follow these precautions could cause the wheel nuts to
loosen and the tire to fall off, resulting in death or serious injury.
• Have the wheel nuts tightened with a torque wrench to 89 ft•lbf (120
N•m, 12.2 kgf•m) as soon as possible after changing wheels.
• When installing a tire, only use wheel nuts that have been specifi- cally 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 SUBARU dealer.
• When installing the wheel nuts, be sure to install them with the tapered ends facing inward. ( →P. 387)

501
6-1. Specifications
6
Vehicle specifications
BRZ_U (A4450BE-A)
Brakes
*1: Minimum pedal clearance when depressed with a force of 110 lbf (490 N, 50
kgf) while the engine is running.
*2: Parking brake lever travel when pulled up with a force of 45.0 lbf (200 N,20.4 kgf).
■ Brake disc
If you need information on the usage limit value of brake discs and
the method for measuring them, we recommend that you consult
your SUBARU dealer.
Pedal clearance*1
2.16 in. (55 mm) Min.
Pedal free play 0.020  0.106 in. (0.5  2.7 mm)
Brake pad wear
limit (vehicles with-
out brembo brake)Front 0.059 in. (1.5 mm)
Rear 0.059 in. (1.5 mm)
Brake pad wear
limit (vehicles with
brembo brake)Front 0.047 in. (1.2 mm)
Rear 0.061 in. (1.55 mm)
Parking brake lining wear limit 0.059 in. (1.5 mm)
Parking brake lever travel*27  8 clicks
Fluid type FMVSS No.116 DOT 3 or DOT 4 brake
fluid
Brake pedal
Pedal
clearance
Carpet

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6-1. Specifications
6
Vehicle specifications
BRZ_U (A4450BE-A)
Warning: The temperature grades of a tire assume that it is properly
inflated and not overloaded.
Excessive speed, underinflation, or excessive loading, either sepa-
rately or in combination, can cause heat buildup and possible tire fail-
ure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation
pressure Tire pressure when the vehicle has been
parked for three hours or more, or has not
been driven more than 1 mile or 1.5 km under
that condition
Maximum inflation
pressure The maximum cold inflated pressure to which a
tire may be inflated, shown on the sidewall of
the tire
Recommended
inflation pressure Cold tire inflation pressure recommended by a
manufacturer.
Accessory weight The combined weight (in excess of those stan-
dard items which may be replaced) of auto-
matic transmission, power steering, power
brakes, power windows, power seats, radio
and heater, to the extent that these items are
available as factory-installed equipment
(whether installed or not)
Curb weight The weight of a motor vehicle with standard
equipment, including the maximum capacity of
fuel, oil and coolant, and if so equipped, air
conditioning and additional weight optional
engine
Maximum loaded
vehicle weight The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight

516 6-1. Specifications
BRZ_U (A4450BE-A)
Tire related termMeaning
Normal occupant
weight 150 lb. (68 kg) times the number of occupants
specified in the second column of Table 1
* that
follows
Occupant distribution Distribution of occupants in a vehicle as speci-
fied in the third column of Table 1
* below
Production options
weight The combined weight of installed regular pro-
duction 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
Rim A 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 designation Rim diameter and width
Rim type designation The industry manufacturer’s designation for a
rim by style or code
Rim width Nominal distance between rim flanges
Vehicle capacity
weight (Total load
capacity) The rated cargo and luggage load plus 150 lb.
(68 kg) times the vehicle’s designated seating
capacity
Vehicle maximum load
on the tire The load on an individual tire that is determined
by distributing to each axle its share of the
maximum loaded vehicle weight, and dividing
by two