ECU SUBARU LEGACY 2016 6.G Repair Manual

possible.
.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 long 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 rear
shelf behind the rear seatback
(Legacy) or the extended cargo
area cover (Outback–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, containers
with flammable or corrosive liquids
or any other dangerous items inside
the vehicle.
NOTE
For better fuel economy, do not carry
unneeded cargo.
&Vehicle capacity weight
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
vehicle placard attached to the driver’s
Driving tips/Loading your vehicle
–CONTINUED–8-13

the maximum load limit. Over-
loading may cause damage to
the vehicle and create a safety
hazard.
The bars can be used as crossbars.
Cargo can be carried after setting the
bars as crossbarsand installing the
genuine SUBARU carrying attachment.
When you carry cargo on the roof using
the crossbars and a carrying attachment,
never exceed the maximum load limit
explained in the following. 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
on loading cargo into or onto your vehicle,
refer to“Loading your vehicle”F8-12. The
maximum load limit of the cargo and
carrying attachment must not exceed the
allowable load limit described in the Own-
er’s Manual of a genuine SUBARU carry-
ing attachment. Place the heaviest load at
the bottom, nearest the roof, and evenly
distribute the cargo. Always properly
secure all cargo.!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 the allowable load
limit described in the Owner’s Manual of a
genuine SUBARU carrying attachment.
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.
.Restore the bars to the original
position when the bars are not used
as crossbars.!How to use as crossbars
CAUTION
.Do not raise the bar higher than
necessary. The base of the bar
may be damaged.
.Be careful not to contact the bars
while sliding them. Otherwise,
the bars may be scratched or
the latch portions may be da-
maged.
.Do not slide the bar more than
necessary when sliding the bar.
The base of the bar may be
damaged.
.Do not allow the bar to fall on or
contact the roof panel or the
moonroof when sliding the bar.
Otherwise the roof panel may be
dented or the glass of the moon-
roof may be damaged.
Driving tips/Loading your vehicle
–CONTINUED–8-15

Driving tips/Loading your vehicle
1. Pull out the integrated crossbars from
the roof rail holders by pulling up the
covers.
2. Slide the bars in the direction shown in
the illustration.
3. Install the bars into the holders.
4. Make sure that the latches are fitted
securely.
!How to change the position of the
crossbar
WARNING
Carefully read the warning label
attached to the roof rail.
You can change the position of the rear
crossbar. To change the position, perform
the following procedure.
1. Take out the torque wrench from the
under-floor storage compartment.
2. Undo the cap of the roof rail holder by
using the torque wrench.
3. Undo the bolt of the crossbar by using
the torque wrench.
8-16

Driving tips/Trailer hitch (Outback—if equipped)
4. Install the bars into the holders.
5. Make sure that the latches are fitted
securely.
!Rope hook (attached to the roof rail)
Rope hook
CAUTION
.When you use the rope hooks,
always secure the rope at all four
hook points.
.Do not tighten the rope exces-
sively. Otherwise, it may lead to
damage to the vehicle body or
cargo.
.Check that the rope is not loose
before driving the vehicle.
.When you use the rope hooks,
never exceed the maximum load
limit.
Load limit:
Observe the load limit that is indicated on
the rope hook.
Trailer hitch (Outback—if
equipped)
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 (Outback)”F8-
21.
.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
8-18

the hitch receiver, the trailer
could get loose and create a
traffic safety hazard.
.Use only the ball mount supplied
with this hitch. Use the hitch only
as a weight carrying hitch. Do not
use with any type of weight
distributing hitch.
The maximum gross trailer weight and
maximum gross tongue weight are indi-
cated in the following table.
Maximum
gross trailer
weightMaximum
gross tongue
weight
3.6 L models3,000 lbs
(1,360 kg)
200 lbs
(90 kg)
2.5 L models2,700 lbs
(1,224 kg)
When towing a trailer, refer to“Trailer
towing (Outback)”F8-21.
&Connecting a trailer
1. Remove the receiver cover from the
hitch receiver tube. Then insert the ball
mount into the hitch 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.
Driving tips/Trailer hitch (Outback—if equipped)
–CONTINUED–8-19

Driving tips/Trailer hitch (Outback—if equipped)
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 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, stop and turn signal lights on the
trailer.
NOTE
Always disconnect the trailer wire har-
ness before launching or retrieving awatercraft.
&If not towing 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 connector using terminal grease.
8-20

Trailer towing (Legacy)
Your vehicle is neither designed nor
intended to be used for trailer towing.
Therefore, never tow a trailer with your
vehicle.
SUBARU assumes no responsibility for
injuries or vehicle damage that may result
from trailer towing, from any trailer towing
equipment or from any errors or omissions
in the instructions accompanying such
equipment. SUBARU warranties do not
apply to vehicle damage or malfunction
caused by trailer towing.
Trailer towing (Outback)
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)
Driving tips/Trailer towing (Legacy)
–CONTINUED–8-21

!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.
The GVWR of your vehicle that is set by
SUBARU is shown on the certification
label located on the driver’s door of yourvehicle.
Certification label
!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 are set by SUBARU are also
shown on the certification label.
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.
Driving tips/Trailer towing (Outback)
–CONTINUED–8-23

Driving tips/Trailer towing (Outback)
!Tongue load
Tongue load
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.
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).
1) Jack
2) Bathroom scale
The tongue load can be weighed with a
bathroom scale as shown in the following
illustration. 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.
8-24

Driving tips/Trailer towing (Outback)
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 stop
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”F12-
9 and in“GAS STATION REFERENCE”at
the end of this manual.
Trailer tire condition, size, load rating and
proper inflation pressure should be in
accordance with the trailer manufacturer’s
specifications.
In the event your vehicle gets a flat tirewhen towing a trailer, ask a commercial
road service representive or professional
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”
F7-59.
.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
8-26