tow SUBARU IMPREZA 2016 5.G Service Manual

manufacturer.
SUBARU assumes no responsibility for
injuries or vehicle damage that result from
trailer towing equipment, or from any
errors or omissions in the instructions
accompanying such equipment or for your
failure to follow the proper instructions.
Regularly check that the hitch mounting
bolts and nuts are tightened securely.
&Warranties and maintenance
SUBARU warranties do not apply to
vehicle damage or malfunction caused
by trailer towing. If you use your vehicle to
tow a trailer, more frequent maintenance
will be required due to the additional load.
(Refer to “Maintenance schedule under
severe driving conditions ”in the “Warranty
and Maintenance Booklet ”.)
Under no circumstances should a trailer
be towed with a new vehicle or a vehicle
with any new powertrain component (en-
gine, transmission, differential, wheel
bearings, etc.) for the first 1,000 miles
(1,600 km) of driving.
& Maximum load limits
WARNING
Never exceed the maximum load
limits explained in the following.
Exceeding the maximum load limits
could cause personal injury and/or
vehicle damage.
CAUTION
. Adequate size trailer brakes are
required when the trailer and its
cargo exceed 1,000 lbs (453 kg)
total weight.
. Before towing a trailer, check the
trailer total weight, GVW, GAWs
and tongue load. Make sure the
load and its distribution in your
vehicle and trailer are accepta-
ble. !
Total trailer weight
Total trailer weight
The total trailer weight (trailer weight plus
its cargo load) must never exceed the
maximum total trailer weight in the follow-
ing table.
Driving tips/Trailer towing (Crosstrek models)
–CONTINUED –8-19

Driving tips/Trailer towing (Crosstrek models)
Crosstrek modelsConditions Maximum total trailer weight
When towing a trailer without brakes. 1,000 lbs (453 kg)
When towing a trailer with brakes. 1,500 lbs (680 kg)
When towing a trailer on a long uphill grade
continuously for over 5 miles (8 km) with an
outside temperature of 104 8F (40 8C) or above. 750 lbs (340 kg)!
Gross Vehicle Weight (GVW) and
Gross Vehicle Weight Rating
(GVWR)
Gross Vehicle Weight
The Gross Vehicle Weight (GVW) must
never exceed the Gross Vehicle Weight
Rating (GVWR).
Gross Vehicle Weight (GVW) is the
combined total of the weight of the vehicle,
driver, passengers, luggage, trailer hitch,
trailer tongue load and any other optional
equipment installed on your vehicle.
Therefore, the GVW changes depending
on the situation. Determine the GVW each
time before going on a trip by putting your
vehicle and trailer on a vehicle scale.
8-20

Certification label
GVWR of your vehicle that is given by
SUBARU is shown on the certification
label located at the bottom of driver’s side
door pillar of your vehicle. !
Gross Axle Weight (GAW) and
Gross Axle Weight Rating (GAWR)Gross Axle Weight
The total weight applied to each axle
(GAW) must never exceed the Gross Axle
Weight Rating (GAWR). The front and rear
GAWs can be adjusted by relocating
passengers and luggage inside the vehi-
cle. The front and rear GAWR of your
vehicle that is given by SUBARU are also
shown on the certification label located at
the bottom of driver ’s side door pillar.
To check both GVWR and GAWR and to
confirm that the total weight and weight
distribution are within safe driving limits,
you should have your vehicle and trailer
weighed at a commercial weighing station.
Be sure that all cargo is firmly secured to prevent a change in weight distribution
while driving.
!
Tongue loadTongue load
Ensure that the trailer tongue load is from
8 to 11 percent of the total trailer weight
and does not exceed the maximum value
of 200 lbs (90 kg).
NOTE
For vehicles with trailer brakes, the
trailer tongue load exceeds 200 lbs (90
kg) when calculated at 8% of the
maximum total trailer weight.
Even in this case, the maximum value
is 200 lbs (90 kg).
Driving tips/Trailer towing (Crosstrek models)
–CONTINUED –8-21

Driving tips/Trailer towing (Crosstrek models)
1) Jack
2) Bathroom scale
The tongue load can be weighed with a
bathroom scale as shown in the illustration
above. When weighing the tongue load,
be sure to position the towing coupler at
the height at which it would be during
actual towing, using a jack as shown.
F: Front
The tongue load can be adjusted by
proper distribution of the load in the trailer.
Never load the trailer with more weight in
the back than in the front; approximately
60 percent of the trailer load should be in
the front and approximately 40 percent in
the rear. Also, distribute the load as evenly
as possible on both the left and right
sides.
Be sure that all cargo is firmly secured to
prevent a change in weight distribution
while driving.
WARNING
If the trailer is loaded with more
weight in the back of trailer’s axle
than in the front, the load is taken off the rear axle of the towing vehicle.
This may cause the rear wheels to
skid, especially during braking or
when vehicle speed is reduced dur-
ing cornering, resulting in over-
steer, spin out and/or jackknifing.
&
Trailer Hitches
WARNING
Never drill the frame or under-body
of your vehicle to install a commer-
cial trailer hitch. If you do, danger-
ous exhaust gas, water or mud may
enter the passenger compartment
through the drilled hole. Exhaust
gas contains carbon monoxide, a
colorless and odorless gas which is
dangerous, or even lethal, if inhaled.
Also, drilling the frame or under-
body of your vehicle could cause
deterioration of strength of your
vehicle and cause corrosion around
the drilled hole.
CAUTION
. Do not modify the vehicle ex-
haust system, brake system, or
other systems when installing a
8-22

hitch or other trailer towing
equipment.
. Do not use axle-mounted hitches
as they can cause damage to the
axle housing, wheel bearings,
wheels or tires.
Do not use a trailer hitch other than
genuine SUBARU trailer hitch. A genuine
SUBARU hitch is available from your
SUBARU dealer.
& Connecting a trailer
! Trailer brakes
WARNING
.Adequate size trailer brakes are
required when the trailer and its
cargo exceed 1,000 lbs (453 kg)
total weight.
. Do not directly connect your
trailer ’s hydraulic brake system
to the hydraulic brake system in
your vehicle. Direct connection
would cause the vehicle’ s brake
performance to deteriorate and
could lead to an accident.
If your trailer ’s total weight (trailer weight
plus its cargo weight) exceeds 1,000 lbs (453 kg), the trailer is required to be
equipped with its own brake system.
Electric brakes or surge brakes are
recommended, and must be installed
properly. Check that your trailer
’s brakes
conform with Federal, state/province and/
or other applicable regulations. Your
SUBARU ’s brake system is not designed
to be tapped into the trailer ’s hydraulic
brake system. Please ask your SUBARU
dealer and professional trailer supplier for
more information about the trailer ’s brake
system.
! Trailer safety chains
WARNING
Always use safety chains between
your vehicle and the trailer. Towing
trailer without safety chains could
create a traffic safety hazard if the
trailer separates from the hitch due
to coupling damage or hitch ball
damage.
In case the trailer hitch connector or hitch
ball should break or become discon-
nected, the trailer could get loose and
create a traffic safety hazard.
For safety, always connect the towing
vehicle and trailer with trailer safety
chains. Two chains should be used in total, one to the right side and the other to
the left side trailer tongue. Pass the chains
crossing each other under the trailer
tongue to prevent the trailer from dropping
onto the ground in case the trailer tongue
should disconnect from the hitch ball.
Allow sufficient slack in the chains taking
tight turn situations into account; however,
be careful not to let them drag on the
ground.
!
Side mirrors
After hitching a trailer to your vehicle,
check that the standard side mirrors
provide a good rearward field of view
without significant blind spots. If significant
blind spots occur with the vehicle’ s stan-
dard side mirrors, use towing mirrors that
conform with Federal, state/province and/
or other applicable regulations.
Driving tips/Trailer towing (Crosstrek models)
–CONTINUED –8-23

Driving tips/Trailer towing (Crosstrek models)
!Trailer lights
CAUTION
Direct splicing or other improper
connection of trailer lights may
damage your vehicle ’s electrical
system and cause a malfunction of
your vehicle ’s lighting system.
Connection of trailer lights to your vehi-
cle ’s electrical system requires modifica-
tions to the vehicle’ s lighting circuit to
increase its capacity and accommodate
wiring changes. To ensure the trailer lights
are connected properly, please consult
your SUBARU dealer. Check for proper
operation of the turn signals and the brake
lights each time you connect a trailer to
your vehicle.
! Tires
WARNING
Never tow a trailer when the tem-
porary spare tire is used. The tem-
porary spare tire is not designed 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.
Make sure that all the tires on your vehicle are properly inflated. Refer to
“Tires”F 12-
8.
Trailer tire condition, size, load rating and
proper inflation pressure should be in
accordance with the trailer manufacturer ’s
specifications. Also check federal, state,
province and/or other applicable regula-
tions.
In the event your vehicle gets a flat tire
when towing a trailer, ask a commercial
road service representative or profes-
sional 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.
& Trailer towing tips
CAUTION
. For models equipped with the
BSD (Blind Spot Detection) and
RCTA (Rear Cross Traffic Alert)
driving support systems, when
towing a trailer, press the BSD/
RCTA OFF switch to deactivate
the system. The system may not
operate properly due to the
blocked radar waves. For details
about the BSD/RCTA OFF switch, refer to
“BSD/RCTA OFF switch ”
F 7-56.
. 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 dif-
ferent when compared to normal
operation. For safety’ s sake, you
should employ extra caution
when towing a trailer and you
should never drive at excessive
speeds. You should also keep the
following tips in mind:
! Before starting out on a trip
. Check the towing regulations for trailer
or caravan vehicles that vary by state/
region. Failure to comply with the proce-
dures set forth will not only compromise
your safety, but will also negate your
insurance coverage and/or may violate
the state road and traffic acts and regula-
tions.
. Check that the vehicle and vehicle-to-
hitch mounting are in good condition. If
any problems are apparent, do not tow the
trailer.
. Check that the vehicle rests horizon-
tally with the trailer attached. If the vehicle
8-24

is tipped sharply up at the front and down
at the rear, check the total trailer weight,
GVW, GAWs and tongue load again, then
confirm that the load and its distribution
are acceptable.
.Check that the tire rating and 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 con-
nected properly and trailer ’s brake
lights illuminate when the vehicle ’s
brake pedal is pressed, and that the
trailer ’s turn signal lights flash when
the vehicle’ s turn signal lever is oper-
ated.
– the safety chains are connected
properly.
– all cargo in the trailer is secured
safely in position.
– the side mirrors provide a good
rearward field of view without a sig-
nificant 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 accel-
erations. If your vehicle has a manual
transmission, always start out in first gear
and release the clutch at moderate engine
revolution.
. Avoid uneven steering, sharp turns and
rapid lane changes.
. Slow down before turning. Make a
longer than normal 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, caus-
ing 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 promptly begin
decelerating your vehicle at a gradual
pace.
. When passing other vehicles, consid-
erable distance is required because of the
added weight and length caused by
attaching the trailer to your vehicle.
1) Left turn
2) Right turn
. Backing up with a trailer is difficult and
takes practice. When backing up with a
trailer, never accelerate or steer rapidly.
When turning back, grip the bottom of the
steering wheel with one hand and turn it to
the left for a left turn, and turn it to the right
for a right turn.
. If the ABS warning light illuminates
while the vehicle is in motion, stop towing
the trailer and have repairs performed
immediately by your nearest SUBARU
dealer.
Driving tips/Trailer towing (Crosstrek models)
–CONTINUED –8-25

Driving tips/Trailer towing (Crosstrek models)
!Driving on grades
. Before going down a steep hill, slow
down and shift into lower gear (if neces-
sary, use 1st gear) in order to utilize the
engine braking effect and prevent over-
heating of your vehicle’ s brakes. Do not
make sudden downshifts.
. When driving uphill in hot weather, the
air conditioner may turn off automatically
to protect the engine from overheating.
. When driving uphill in hot weather, pay
attention to the following indicators be-
cause the engine and transmission are
relatively prone to overheating.
: Coolant temperature high warning light
: AT OIL TEMP warning light (CVT models)
If the coolant temperature high warning
light and/or the AT OIL TEMP warning light
illuminates, immediately turn off the air
conditioner and stop the vehicle in the
nearest safe location. For further instruc-
tions and additional information, refer to
the following sections. –“If you park your vehicle in case of
an emergency ”F 9-2
–“ Engine overheating ”F 9-13
–“ Coolant temperature low indicator
light/Coolant temperature high warn-
ing light ”F 3-17 –“
AT OIL TEMP warning light (CVT
models) ”F 3-19
. For CVT models, avoid using the
accelerator pedal to stay stationary on
an uphill slope instead of using the
parking brake or foot brake. That may
cause the transmission fluid to overheat.
! Parking on a grade
Always block the wheels under both
vehicle and trailer when parking. Apply
the parking brake firmly. You should not
park on a hill or slope. If parking on a hill or
slope cannot be avoided, you should take
the following steps:
1. Apply the brakes and hold the pedal
down.
2. Have someone place wheel blocks
under both the vehicle and trailer wheels.
3. When the wheel blocks are in place,
release the regular brakes slowly until the
blocks absorb the load.
4. Apply the regular brakes and then
apply the parking brake; slowly release
the regular brakes.
5. Shift into 1st or reverse gear (MT
models) or “P ” position (CVT models)
and shut off the engine.
8-26

If you park your vehicle in case of anemergency ........................................................ 9-2
Temporary spare tire ........................................... 9-2
Maintenance tools ............................................... 9-3
Tool locations..................................................... 9-4
Using the jack ..................................................... 9-5
Flat tires............................................................... 9-6Changing a flat tire .............................................. 9-6
Tire pressure monitoring system (TPMS) (U.S.-spec. models) ........................................... 9-9
Jump starting..................................................... 9-10How to jump start ............................................... 9-11
Engine overheating ............................................ 9-13If steam is coming from the engine
compartment .................................................... 9-13 If no steam is coming from the engine
compartment ................................................... 9-13
Towing................................................................ 9-14Towing hooks and tie-down hooks/holes ............ 9-14
Using a flat-bed truck. ........................................ 9-16
Towing with all wheels on the ground ................. 9-17
Access key–if access key does not
operate properly ............................................. 9-18
Locking and unlocking ....................................... 9-18
Switching power ................................................ 9-18
Starting engine .................................................. 9-19
Rear gate–if the rear gate cannot be
opened ............................................................. 9-19
If your vehicle is involved in an accident ........ 9-20
In case of emergency
9

In case of emergency/If you park your vehicle in case of an emergency
If you park your vehicle in
case of an emergency
1) Models with multi function display
2) Models without multi function display
The hazard warning flasher should beused 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 acti-
vated regardless 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.
Temporary spare tire
WARNING
.
Never tow a trailer when the
temporary spare tire is used.
The temporary spare tire is not
designed 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 and
may lead to an accident.
. When a spare tire is mounted or a
wheel rim is replaced without the
original pressure sensor/trans-
mitter being transferred, the low
tire pressure warning light will
illuminate steadily after blinking
for approximately one minute.
This indicates the tire pressure
monitoring system (TPMS) is un-
able to monitor all four road
wheels. Contact your SUBARU
dealer as soon as possible for
tire and sensor replacement and/
or system resetting.
9-2