service SUBARU IMPREZA WRX 2012 4.G Manual PDF

11-46Maintenance and service
3. Pull the bulb out of the socket.
4. Install a new bulb.
5. Reinstall the license plate light cover. & Map light
! Type A
1. Remove the lens by prying the edge of
the lens with a flat-head screwdriver.
2. Turn the bulb until the flat surfaces at
its ends are aligned vertically. Pull the bulb
straight downward to remove it.
3. Install a new bulb.
4. Reinstall the lens. !
Type B
1. Remove the lens by prying the edge of
the lens with a flat-head screwdriver.
2. Pull the bulb out of the socket.
3. Install a new bulb.
4. Reinstall the lens.

&Dome light and cargo area light
Dome light
Cargo area light
1. Remove the lens by prying the edge of the lens with a flat-head screwdriver.
2. Pull the bulb out of the socket.
3. Install a new bulb.
4. Reinstall the lens.
& Trunk light
1. Remove the cover by squeezing its
sides and pulling it.
2. Pull the bulb out of the socket.
3. Install a new bulb.
4. Reinstall the cover. &
High mount stop light (4-
door) (except LED [Light
Emitting Diode] type)
1. Remove the high mount stop light
cover by prying the edge with a screw-
driver.
2. Remove the bulb socket from the high
mount stop light assembly by turning itcounterclockwise.
3. Pull the bulb out of the socket.
4. Install a new bulb.
5. Reinstall the cover. &Other bulbs
It may be difficult to replace the bulbs.
Have the bulbs replaced by your
SUBARU dealer if necessary. Maintenance and service
11-47

&Tires
Tire size 235/45R17 245/40R18
Wheel size 1768J 18 68
1/2J
Pressure Front 33 psi (230 kPa, 2.3 kgf/cm2)
Rear 32 psi (220 kPa, 2.2 kgf/cm2)
Temporary spare tire Size T135/70 D17
Pressure 60 psi (420 kPa, 4.2 kgf/cm
2)
Wheel nut tightening torque 72 lbf·ft (100 N·m, 10 kgf·m)*
*: This torque is equivalent to applying approximately 88 to 110 lbf (40 to 50 kgf) at the edge of the wheel nut wrench. If you have tightened the wheel
nuts by yourself, have the tightening torque checked at the nearest automotive service facility as soon as possible. Specifications
12-9

Uniform tire quality grading standards
This information indicates the rela-
tive performance of passenger car
tires in the area of treadwear,
traction, and temperature resis-
tance. This is to aid the consumer
in making an informed choice in the
purchase of tires.
Quality grades can be found where
applicable on the tire sidewall be-
tween tread shoulder and maxi-
mum section width. For example:
Treadwear 200 Traction AA Tem-
perature A
The quality grades apply to new
pneumatic tires for use on passen-
ger cars. However, they do not
apply to deep tread, winter type
snow tires, space-saver or tempor-
ary use spare tires, tires with
nominal rim diameters of 12 inches
or less, or to some limited produc-
tion tires.
All passenger car tires must con-form to Federal Safety Require-
ments in addition to these grades.
& Treadwear
The treadwear grade is a compara-
tive rating based on the wear rate of
the tire when tested under con-
trolled conditions on a specified
government test course.
For example, a tire graded 150
would wear one and one-half (1-
1/2) times as well on the govern-
ment course as a tire graded 100.
The relative performance of tires
depends upon the actual conditions
of their use, however, and may
depart significantly from the norm
due to variations in driving habits,
service practices and differences in
road characteristics and climate. & Traction AA, A, B, C
The traction grades, from highest to
lowest, are AA, A, B and C. Those
grades represent the tire ’s ability to
stop on wet pavement as measured
under controlled conditions on spe- cified government test surfaces of
asphalt and concrete. A tire marked
C may have poor traction perfor- mance.
WARNING
The traction grade assigned to
this tire is based on straight-
ahead braking traction tests,
and does not include accel-
eration, cornering, hydroplan-
ing, or peak traction charac-teristics.
& Temperature A, B, C
The temperature grades are A (the
highest), B, and C, representing thetire ’s resistance to the generation of
heat and its ability to dissipate heat
when tested under controlled con-
ditions on a specified indoor labora-
tory test wheel. Sustained high
temperature can cause the material
of the tire to degenerate and reduce
tire life, and excessive temperature
can lead to sudden tire failure. The
Consumer information and Reporting safety defects
13-15
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