2004 SUBARU IMPREZA turn signal

8-28
Driving tips
Hitch harness connector – Wagon
8. Connect the hitch wire harness’s black four-pin
wire connector to the towing trailer’s wire harness
9. Confirm proper function of the hitch wire harness
by individually activating the brake, right turn signal,
left turn signal, stop, and parking lights on the trailer.
NOTE
Always disconnect the trailer wire harness before
launching or retrieving a watercraft. ! When you do not tow a trailer
" Remove the ball mount from the hitch receiver tube and insert the receiver cover onto the hitch receiver tube. "
Place the dust cap over the four-pin connector of the
hitch wire harness to protect against possible damage. " Occasionally lubricate terminals of the four-pin con-
nector using terminal grease.
HS8015BA

8-37
Driving tips
– CONTINUED –
use towing mirrors that conform with Federal, state/
province and/or other applicable regulations. !Trailer lights
Connection of trailer lights to your vehicle’s electrical
system requires modifications to the vehicle’s lighting
circuit to increase its capacity and accommodate wir-
ing changes. To ensure the trailer lights are connected
properly, please consult your SUBARU dealer. Check
for proper operation of the turn signals, the brake
lights and parking lights each time you hitch up.
Direct splicing or other improper connection of
trailer lights may damage your vehicle’s electri-
cal system and cause a malfunction of your ve-
hicle’s lighting system.
! Tires
Make sure that all the tires on your vehicle are properly
inflated to the pressure specified on the tire placard lo-
cated on the left center pillar of your vehicle.
Trailer tire condition, size, load rating and proper infla-
tion pressure should be in accordance with the trailer
manufacturer’s specifications. In the event your vehicle gets a flat tire when towing a
trailer, ask a commercial road service to repair the flat
tire.
If you carry a regular size spare tire in your vehicle or
trailer as a precaution against getting a flat tire, be
sure that the spare tire is firmly secured.
Never tow a trailer when the temporary spare
tire is used. The temporary spare tire is not de-
signed to sustain the towing load. Use of the
temporary spare tire when towing can result in
failure of the spare tire and/or less stability of
the vehicle.
! Trailer towing tips
"Never exceed 45 mph (72 km/h) when towing
a trailer in hilly country on hot days. " When towing a trailer, steering, stability,
stopping distance and braking performance
will be different from normal operation. For
safety’s sake, you should employ extra caution

8-38
Driving tips
when towing a trailer and you should never
speed. You should also keep the following tips
in mind:
! Before starting out on a trip
" Check that the vehicle and vehicle-to-hitch mount-
ing are in good condition. If any problems are appar-
ent, do not tow the trailer. " Check that the vehicle sits horizontally with the trail-
er attached. If the vehicle is tipped sharply up at the
front and down at the rear, check the total trailer
weight, GVW, GAWs and tongue load again, then con-
firm that the load and its distribution are acceptable. " Check that the tire pressures are correct.
" Check that the vehicle and trailer are connected
properly. Confirm that – the trailer tongue is connected properly to the
hitch ball.
– the trailer lights connector is connected properly
and trailer’s brake lights illuminate when the vehi-
cle’s brake pedal is pressed, and that the trailer’s
turn signal lights flash when the vehicle’s turn signal
lever is operated.
– the safety chains are connected properly.
– all cargo in the trailer is secured safety in position.
– the side mirrors provide a good rearward field of view without a significant blind spot.
" Sufficient time should be taken to learn the “feel” of
the vehicle/trailer combination before starting out on a
trip. In an area free of traffic, practice turning, stopping
and backing up. ! Driving with a trailer
" You should allow for considerably more stopping
distance when towing a trailer. Avoid sudden braking
because it may result in skidding or jackknifing and
loss of control." Avoid abrupt starts and sudden accelerations. If
your vehicle has a manual transmission, always start
out in first gear and release the clutch at moderate en-
gine revolution." Avoid uneven steering, sharp turns and rapid lane
changes." Slow down before turning. Make a longer than nor-
mal turning radius because the trailer wheels will be
closer than the vehicle wheels to the inside of the turn.
In a tight turn, the trailer could hit your vehicle." Crosswinds will adversely affect the handling of
your vehicle and trailer, causing sway. Crosswinds
can be due to weather conditions or the passing of
large trucks or buses. If swaying occurs, firmly grip the
steering wheel and slow down immediately but gradu-
ally." When passing other vehicles, considerable dis-

9-2
In case of emergency
In case of emergencyIf you park your vehicle in case of an
emergency
The hazard warning flasher should be used in day or
night to warn other drivers when you have to park your
vehicle under emergency conditions.
Avoid stopping on the road. It is best to safely pull off
the road if a problem occurs.
The hazard warning flasher can be activated regard-
less of the ignition switch position.
Turn on the hazard warning by pushing the hazard
warning flasher switch. Turn it off by pushing the
switch again.
NOTE
When the hazard warning flasher is on, the turn
signals do not work.
HS3019AA

11 - 2
Maintenance and service
Types of tires .................................................... 11-44
Tire inspection .................................................. 11-45
Tire pressures and wear .................................. 11-45
Wheel balance ................................................... 11-48
Wear indicators ................................................. 11-49
Tire rotation ....................................................... 11-50
Tire replacement ............................................... 11-50
Wheel replacement ........................................... 11-51
Wheel covers .................................................... 11-52
Aluminum wheels (If equipped) .................. 11-53
Intercooler water spray ................................ 11-53
Windshield washer fluid .............................. 11-54
Replacement of windshield wiper blades .. 11-55
Battery ........................................................... 11-58
Fuses ............................................................. 11-60
Main fuse ....................................................... 11-63
Installation of accessories .......................... 11-63
Replacing bulbs ............................................ 11-64 Headlights (U.S. spec. WRX-STi) .................... 11-66
Headlight (Except U.S. spec. WRX-STi) .......... 11-66
Front turn signal light bulbs ............................ 11-69
Parking light ...................................................... 11-70
Front fog light ................................................... 11-73
Rear combination lights ................................... 11-74
License plate light ............................................ 11-76
Dome light, map light and cargo area light .... 11-77
Trunk light ......................................................... 11-78
High mount stop light ...................................... 11-78

11 -6 5
Maintenance and service
– CONTINUED –
Wattage Bulb No.
1) Front turn signal 12V–21W —
2) Spot light 12V–8W —
3) Room light 12V–8W —
4) Parking light 12V–5W 168
5) Low beam head light U.S. spec. WRX-STi 12V-35W D2R Except U.S. spec. WRX-STi 12V-55W H1
6) Front fog light 12V–55W H3
7) High beam head light 12V–60W 9005 (HB3)
8) Trunk room light 12V–16W W16W
9) High mount stop light Sedan
(in compartment) 12V–18W 921
(in rear spoiler) 12V–1.2W —
Wagon 12V–13W 912
10) Backup light 12V–21W 7440
11) Rear turn signal 12V–21W (Amber)—
12) Brake light 12V–21W 7440
13) Tail light 12V–21/5W 7443
14) Brake/tail light 12V–21/5W 7443
15) License plate light 12V–5W 168 16) Cargo area light 12V–13W —
Wattage Bulb No.

11 -6 9
Maintenance and service
– CONTINUED –
!Front turn signal light bulbs
1. Remove the bulb socket from the headlight assem-
bly by turning it counterclockwise. 2. Pull the bulb out of the socket. Install a new bulb.
3. Set the bulb socket into the headlight assembly and
turn it clockwise until it locks.
4. Install the headlight assembly and the front grille in
the reverse order of removal.
UGB536CA
UGB531BA

11 - 7 4
Maintenance and service
!
Rear combination lights
! Sedan
1. Remove the clip from the rear trunk trim with a reg-
ular screwdriver. 1) Backup light
2) Rear turn signal light
3) Brake light
4) Tail light
5) Brake/tail light
2. Open the rear portion of the side trunk trim panel.
3. Remove the bulb holder from the rear combination
light assembly by turning it counterclockwise.
4. Remove the bulb from the socket by pushing it and
turning counterclockwise. Install a new bulb.
5. Set the bulb holder into the rear combination light
assembly and turn it clockwise until it locks.
6. Secure the rear trunk trim panel with the clips.
UGB538BA
554
2
3
1
UGB539BB