ECU SUBARU FORESTER 2017 SJ / 4.G Repair Manual

common sense precautions such as those
in the following list should be taken.
.Make certain that you and all of your
passengers are wearing seatbelts.
. Carry some emergency equipment,
such as a towing rope or chain, a shovel,
wheel blocks, first aid kit and cell phone or
citizens band radio.
. Drive carefully. Do not take unneces-
sary risks by driving in dangerous areas or
over rough terrain.
. Slow down and employ extra caution at
all times. When driving off-road, you will
not have the benefit of marked traffic
lanes, banked curves, traffic signs and
the like.
. Do not drive across steep slopes.
Instead, drive either straight up or straight
down the slopes. A vehicle can much
more easily tip over sideways than it can
end over end. Avoid driving straight up or
down slopes that are too steep.
. Avoid sharp turning maneuvers, espe-
cially at higher speeds.
. Do not grip the inside or spokes of the
steering wheel. A bad bump could jerk the
wheel and injure your hands. Instead drive
with your fingers and thumbs on the
outside of the rim.
. If driving through water, such as when
crossing shallow streams, first check the depth of the water and the bottom of the
stream bed for firmness and ensure that
the bed of the stream is flat. Drive slowly
and cross the stream without stopping.
The water should be shallow enough that
it does not reach the vehicle’
s under-
carriage. Water entering the engine air
intake or the exhaust pipe or water
splashing onto electrical parts may da-
mage your vehicle and may cause it to
stall. Never attempt to drive through
rushing water; regardless of its depth, it
can wash away the ground from under
your tires, resulting in possible loss of
traction and even vehicle rollover.
. Always check your brakes for effec-
tiveness immediately after driving in sand,
mud or water. Do this by driving slowly
and stepping on the brake pedal. Repeat
that process several times to dry out the
brake discs and brake pads.
. Do not drive or park over or near
flammable materials such as dry grass or
fallen leaves, as they may burn easily. The
exhaust system is very hot while the
engine is running and right after engine
stops. This could create a fire hazard.
. After driving through tall grass, mud,
rocks, sand, rivers, etc., check that there
is no grass, bush, paper, rags, stones,
sand, etc. adhering to or trapped on the
underbody. Clear off any such matter from the underbody. If the vehicle is used with
these materials trapped or adhering to the
underbody, a mechanical breakdown or
fire could occur.
.
Secure all cargo carried inside the
vehicle and make certain that it is not
piled higher than the seatbacks. During
sudden stops or jolts, unsecured cargo
could be thrown around in the vehicle and
cause injury. Do not pile heavy loads on
the roof. Those loads raise the vehicle’ s
center of gravity and make it more prone
to tip over.
. If you must rock the vehicle to free it
from sand or mud, depress the accelerator
pedal slightly and move the shift lever/
select lever back and forth between “1”/
“D ”and “R”repeatedly. Do not race the
engine. For the best possible traction,
avoid spinning the wheels when trying to
free the vehicle.
. When the road surface is extremely
slippery, you can obtain better traction by
starting the vehicle with the transmission
in 2nd than 1st. For CVT models with
manual mode, refer to “Selection of
manual mode ”F 7-27.
. Never equip your vehicle with tires
larger than those specified in this manual.
. Wash the vehicle’ s underbody after off-
road driving. Suspension components are
particularly prone to dirt buildup, so they
Driving tips/On –road and off –road driving
–CONTINUED –8-7

WARNING
.When you carry something inside
the vehicle, secure it whenever
you can to prevent it from being
thrown around inside the vehicle
during sudden stops, sharp turns
or in an accident.
. Do not pile heavy loads on the
roof. These loads raise the vehi-
cle ’s center of gravity and make it
more prone to tip over.
. Secure lengthy items properly to
prevent them from shooting for-
ward and causing serious injury
during a sudden stop.
. Never exceed the maximum load
limit. If you do, some parts on
your vehicle can break, or it can
change the way your vehicle
handles. This could result in loss
of control and cause personal
injury. Also, overloading can
shorten the life of your vehicle.
. Do not place anything on the
extended cargo area cover (if
equipped). Such items could
tumble forward in the event of a
sudden stop or a collision. This
could cause serious injury.
CAUTION
. Do not carry spray cans, contain-
ers with flammable or corrosive
liquids or any other dangerous
items inside the vehicle.
. Do not close the rear gate with
cargo protruding from the cargo
area. The cargo may be da-
maged. In models with power
rear gate, the rear gate may open
via reverse function.
. In models with power rear gate,
be careful not to allow collision
between the rear gate and the
cargo when you are loading
cargo on the roof. Otherwise,
the rear gate will hit the cargo
when opening and may cause
damage to both the cargo and
the rear gate.
NOTE
For better fuel economy, do not carry
unneeded cargo.
& Vehicle capacity weight
Vehicle placard
The load capacity of your vehicle is
determined by weight, not by available
cargo space. The maximum load you can
carry in your vehicle is shown on the
Driving tips/Loading your vehicle
–CONTINUED –8-13

Driving tips/Loading your vehicle
vehicle placard attached to the driver’s
side door pillar. It includes the total weight
of the driver and all passengers and their
belongings, any optional equipment such
as a trailer hitch, roof rack or bike carrier,
etc., and the tongue load of a trailer.
& GVWR and GAWR (Gross
Vehicle Weight Rating and
Gross Axle Weight Rating)
Certification label
The certification label attached to the
bottom of driver ’s side door pillar shows
GVWR (Gross Vehicle Weight Rating) and
GAWR (Gross Axle Weight Rating).
The GVW (Gross Vehicle Weight) must
never exceed the GVWR. GVW is the
combined total of weight of the vehicle, fuel, driver, all passengers, luggage, any
optional equipment and trailer tongue
load. Therefore, the GVW changes de-
pending on the situation. The GVWR
equals Curb Weight (actual weight of your
vehicle
–including standard equipment,
fluids, emergency tools and spare tire
assembly) plus the vehicle capacity
weight.
In addition, the total weight applied to
each axle (GAW) must never exceed the
GAWR. The front and rear GAWs can be
adjusted by relocating luggage inside the
vehicle.
Even if the total weight of your luggage is
lower than the vehicle capacity weight,
either front or rear GAW may exceed the
GAWR, depending on the distribution of
the luggage.
When possible, the load should be evenly
distributed throughout the vehicle.
If you carry heavy loads in the vehicle, you
should confirm that GVW and front and
rear GAWs are within the GVWR and
GAWR by putting your vehicle on a
vehicle scale, found at a commercial
weighing station.
Do not use replacement tires with a lower
load range than the originals because they
may lower the GVWR and GAWR limita-
tions. Replacement tires with a higher load range than the originals do not increase
the GVWR and GAWR limitations.
&
Roof rack (if equipped)
1) Roof rack
Cargo can be carried on the roof after
securing the crossbars to the roof rails and
installing an appropriate carrying acces-
sory according to the manufacturer ’s
instructions. The roof rack system is
designed to carry loads (cargo and ac-
cessories) of no more than 150 lbs (68
kg) . Be sure not to exceed your vehicle’ s
GVWR and GAWR.
8-14

CAUTION
.When using the roof rack, make
sure that the total carrying load
of the roof rack and luggage does
not exceed 150 lbs (68 kg). Over-
loading may cause damage to
the vehicle.
. For cargo carrying purposes, the
roof rails must be used together
with the roof rack and any appro-
priate carrying attachment that
may be needed. The roof rails
must never be used alone to
carry cargo. Otherwise, damage
to the roof or paint, or a danger-
ous road hazard due to loss of
cargo could result.
NOTE
Remember that the vehicle ’s center of
gravity is altered with the weight of the
load on the roof, thus affecting driving
characteristics.
Drive carefully. Avoid rapid starts, hard
cornering and abrupt stops. Crosswind
effects will be increased.
& Roof molding and crossbar
(if equipped)
CAUTION
. For cargo carrying purposes, the
roof molding must be used to-
gether with a roof crossbar kit
and the appropriate carrying at-
tachment. Otherwise, damage to
the roof or paint or a dangerous
road hazard due to loss of cargo
could result.
. When using the roof crossbar kit,
make sure that the total weight of
the crossbars, carrying attach-
ment and cargo does not exceed
the maximum load limit. Over-
loading may cause damage to the vehicle and create a safety
hazard.
Cargo can be carried after securing the
roof crossbar kit to the roof moldings and
installing the appropriate carrying attach-
ment. When installing the roof crossbar
kit, follow the manufacturer ’s instructions.
When you carry cargo on the roof using
the roof crossbar kit and a carrying
attachment, never exceed the maximum
load limit as explained below. You should
also be careful that your vehicle does not
exceed the Gross Vehicle Weight Rating
(GVWR) and front and rear Gross Axle
Weight Rating (GAWR). For information
about loading cargo into or onto your
vehicle, refer to “Loading your vehicle”
F 8-12. The maximum load limit of the
cargo, crossbars and carrying attachment
must not exceed 176 lbs (80 kg). Place
the heaviest load at the bottom, nearest
the roof, and evenly distribute the cargo.
Always properly secure all cargo.
Driving tips/Loading your vehicle
–CONTINUED –8-15

Driving tips/Trailer hitch (dealer option)
!Installing carrying attachments on
the crossbars
When installing any carrying attachment
such as a bike carrier, ski carrier, kayak
carrier, cargo basket, etc. on the cross-
bars, follow the manufacturer ’s instruc-
tions and make sure that the attachment is
securely fixed to the crossbars. Use only
attachments designed specifically for the
crossbars. A set of the crossbars is
designed to carry loads (cargo and attach-
ment) of not more than 165 lbs (75 kg).
Before operating the vehicle, make sure
that the cargo is properly secured on the
attachment.
NOTE
Remember that the vehicle ’s center of
gravity is altered with the weight of the
load on the roof, thus affecting the
driving characteristics.
Drive carefully. Avoid rapid starts, hard
cornering and abrupt stops. Crosswind
effects will be increased. !
Removal and installation of the
crossbars
Each of the two roof moldings has two
mounting points for crossbars. Each
mounting point is fitted with a cover. Use
a screwdriver to remove the covers. When
installing the crossbars on the roof mold-
ing, follow the manufacturer ’s instructions.
Trailer hitch (dealer option)
WARNING
. Never exceed the maximum
weight specified for the trailer
hitch. Exceeding the maximum
weight could cause an accident
resulting in serious personal in-
juries. Permissible trailer weight
changes depending on the situa-
tion. For possible recommenda-
tions and limitations, refer to
“ Trailer towing” F8-19.
. Trailer brakes are required when
the towing load exceeds 1,000
lbs (453 kg). Be sure your trailer
has safety chains and that each
chain will hold the trailer ’s max-
imum gross weight. Towing trai-
lers without safety chains could
create a traffic safety hazard if
the trailer separates from the
hitch due to coupling damage or
hitch ball damage.
. Be sure to check the hitch pin
and safety pin for positive lock-
ing placement before towing a
trailer. If the ball mount comes off
the hitch receiver, the trailer
could get loose and create a
8-16

Driving tips/Trailer hitch (dealer option)
receiver tube.
2. Insert the hitch pin into the hole
located on the hitch receiver tube so that
the pin passes through the ball mount.
3. Insert the safety pin through the
provided hole on the hitch pin securely.
4. Check the ball mount assembly by
pulling on it to make sure it does not come
off the hitch receiver.
1) Hitch ball installation point
2) Hooks for safety chains
5. Use only a hitch ball that is appropriate
for the ball mount and your trailer. The
hitch ball must be securely installed on the
ball mount.
6. Connect your trailer to the hitch ball.
7. Connect the trailer and the hitch with
safety chains that will hold the trailer’s maximum gross weight. The chains
should cross under the trailer tongue to
prevent the tongue from dropping onto the
ground in case it 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.
WARNING
Do not connect safety chains to any
part of the vehicle other than the
safety chain hooks.
Hitch harness connector
8. Connect the hitch electrical wire har-
ness
’s black four-pin electrical wire con-
nector to the towing trailer ’s wire harness. 9. Confirm proper function of the hitch
electrical wire harness by individually
activating the brake, stop and turn signal
lights on the trailer.
NOTE
Always disconnect the trailer electrical
wire harness before launching or re-
trieving a watercraft.
&
If not towing a trailer
. Remove the ball mount from the hitch
receiver tube.
. Place the dust cap over the four-pin
connector of the hitch electrical wire
harness to protect against possible da-
mage.
. Occasionally lubricate terminals of the
four-pin connector using terminal grease.
8-18

Trailer towing
Your vehicle is designed and intended to
be used primarily as a passenger-carrying
vehicle. Towing a trailer puts additional
loads on your vehicle’s engine, drivetrain,
brakes, tires and suspension and has an
adverse effect on fuel economy.
If you do decide to tow a trailer, your safety
and satisfaction depend upon proper use
of correct equipment and cautious opera-
tion of your vehicle. Seek the advice of
your SUBARU dealer to assist you in
purchasing a hitch and other necessary
towing equipment appropriate for your
vehicle. Do not use towing equipment
other than genuine SUBARU towing
equipment. In addition, be sure to follow
the instructions on correct installation and
use provided by SUBARU.
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 weight in the following table.
Conditions Maximum total trailer
weight
When towing a trailer
with brakes. 1,500 lbs (680 kg)
Driving tips/Trailer towing
–CONTINUED –
8-19

Driving tips/Trailer towing
!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.
Certification label
GVWR is shown on the certification label
located at the bottom of the 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 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
8-20

while driving.
!Tongue load
Tongue 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).
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
Driving tips/Trailer towing
–CONTINUED –8-21

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. !
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-
10.
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,
Driving tips/Trailer towing
–CONTINUED –8-23