18-198-20

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SERVICE BULLETIN
APPLICABILITY:
		
		
		
SUBJECT:
2019-2020 Ascent
2013-2020 BRZ
2013-2020 Forester
2007-2011 & 2015-2020 Legacy Outback
Service Manual Corrections
NUMBER:
18-198-20
DATE:
03/03/20
INTRODUCTION
The purpose of this bulletin is to provide a description of current changes to Service Manuals
available via the Subaru Technical Information System (STIS) web site. The tables contained within
this bulletin are to be used as guides for becoming aware of the latest changes. We advise you to
always refer to the STIS web site when looking for the latest Service information. Printed pages will
not be made available to update printed Service Manuals.
Paper manuals may have different page numbering then what is reflected below, based on
multiple new and revised pages. Please refer to the information contained on the STIS web site
for all future, update service manual information.
YEAR
MODEL
SECTION
SUB-SECTION
PAGE or CHAPTER
DESCRIPTION OF CHANGE
Eyesight
Diagnostics with
Phenomenon
The description for step 2 of phenomenon #6 has
been changed
Infotainment
DTC List
B224C added to DTC list
Infotainment
Diagnostic Procedure
with DTC
Diagnostic procedure for DTC B224C has been
added
Repair Contents
Note
A description in #7 has been deleted
Eyesight
Diagnostics with
Phenomenon
Description change for step 2 of phenomenon #6
Infotainment
DTC List
B224C added to DTC list
Infotainment
Diagnostic Procedure
with DTC
Diagnostic procedure for DTC B224C has been
added
General
Description
Repair Contents
Note
A description in #7 has been deleted
Body &
Electrical/Wiring
System
Security and
Locks
Door Lock Control
System
Inspection item #2 has been added to the repair
order.
Diagnostics
2020
Ascent
General
Description
Diagnostics
2019
Ascent
CAUTION: VEHICLE SERVICING PERFORMED BY UNTRAINED PERSONS COULD
RESULT IN SERIOUS INJURY TO THOSE PERSONS OR TO OTHERS.
Subaru Service Bulletins are intended for use by professional technicians ONLY. They
are written to inform those technicians of conditions that may occur in some vehicles,
or to provide information that could assist in the proper servicing of the vehicle. Properly
trained technicians have the equipment, tools, safety instructions, and know-how to
do the job correctly and safely. If a condition is described, DO NOT assume that this
Service Bulletin applies to your vehicle, or that your vehicle will have that condition.
SUBARU OF AMERICA, INC. IS
ISO 14001 COMPLIANT
ISO 14001 is the international standard for
excellence in Environmental Management
Systems. Please recycle or dispose of
automotive products in a manner that is friendly
to our environment and in accordance with all
local, state and federal laws and regulations.
Continued...
Bulletin Number: 18-198-20; Date: 03/03/20
Page 1 of 5
YEAR
2019
MODEL
SECTION
SUB-SECTION
PAGE or CHAPTER
DESCRIPTION OF CHANGE
Brakes
Brake
Stop Light Switch
Inspection item #2 has been changed
Suspension
Rear
Suspension
Rear Shock Absorber
The disassembly illustrations have been changed
and the identification marker locations were added
Intake
General Description
The intercooler illustration has been changed and
“T2” hyperlink has been added
Ascent
(cont.)
Engine
General Description
Illustration #1 has been changed
Front Exhaust Pipe
Some removal illustrations have been changed
along with the turbocharger stay instructions.
Exhaust
Center Exhaust Pipe
The turbo charger stay removal illustration has
been changed
Some installation illustrations have been changed
along with the turbocharger stay instructions.
2020
BRZ
Engine Control
EFI System
DTC P0458 & P0459
The short circuit check description has been
changed.
2019
BRZ
Engine Control
EFI System
DTC P0458 & P0459
The short circuit check description has been
changed.
2018
BRZ
Engine Control
EFI System
DTC P0458 & P0459
The short circuit check description has been
changed.
2017
BRZ
Engine Control
EFI System
DTC P0458 & P0459
The short circuit check description has been
changed.
2016
BRZ
Engine Control
EFI System
DTC P0458, P0459 &
P1603
Some illustrations and inspection item descriptions
have been changed
2015
BRZ
Engine Control
EFI System
DTC P0458, P0459 &
P1603
Some illustrations and inspection item descriptions
have been changed
2014
BRZ
Engine Control
EFI System
DTC P0458, P0459 &
P1603
Some illustrations and inspection item descriptions
have been changed
2013
BRZ
Engine Control
EFI System
DTC P0458, P0459 &
P1603
Some illustrations and inspection item descriptions
have been changed
Diagnostics
Engine
Diagnostic Procedure
with DTC
Some descriptions were changed and added for
DTC P2682
Suspension
Rear
Suspension
General Description
Illustration #1 has been changed and a description
has been added
Brakes
2020
Forester
Diagnostics
General
Description
Brake
Air Bleeding
The tightening tourque specs have been changed.
Power Seat
Memory
Active Test
An active test item description has been changed
Eyesight
Diagnostics with
Phenomenon
The description for step 2 of phenomenon #6 has
been changed
Repair Contents
Note
A description in #7 has been deleted
Diagnostic Procedure
with DTC
Some descriptions were changed and added for
DTC P2682
Diagnostic Procedure
with DTC
A change has been made to the trouble tree for
DTC P1261
Power Seat
Memory
Diagnostic Procedure
with DTC
A change has been made to the trouble tree for
DTC B2642
Eyesight
Diagnostics with
Phenomenon
The description for step 2 of phenomenon #6 has
been changed
Engine
2019
Forester
Diagnostics
Continued...
Bulletin Number: 18-198-20; Date: 03/03/20
Page 2 of 5
YEAR
MODEL
SECTION
SUB-SECTION
PAGE or CHAPTER
DESCRIPTION OF CHANGE
Exterior/Interior
Trim
Console Box
Assembly instructions were changed
Eyesight
Stereo Camera
Some cautions and working procedures have been
changed, added and deleted
Security and
Locks
Door Lock Control
System
Some changes and additions have been made to
the symptom chart and diag steps
Seats
General Description
Descriptions have been changed and added and a
procedure has been added for front seat removal,
installation, inspection, and adjustment
Rear Shock Absorber
The disassembly illustrations have been changed
and the identification marker locations were added
General Description
Rear suspension specifications were changed and
the flange bolt description was added
Front
Suspension
General Description
Rear alignment inspection value was changed and
the flange bolt description was added
Transmission
Continuously
Variable
Transmission
Transmission Mounting
System
The removal and installtion procedures for the rear
crossmember have been changed
Brakes
Brake
Air Bleeding
The tightening tourque specs have been changed.
General
Description
Repair Contents
Note
A description in #7 has been deleted
Diagnostics
Power Seat
Memory
Active Test
An active test item description has been changed
Brake Control
Diagnostic Procedure
with DTC
A change has been made to the trouble tree for
DTC C1532
Occupant
Detection
Diagnostic Procedure
with DTC
Some changes were made and a step was added
to the trouble tree for DTC B1650
Rear
Suspension
Rear Shock Absorber
The disassembly illustrations have been changed a
step has been deleted and the identification marker
locations were added
Brake Control
Diagnostic Procedure
with DTC
A change has been made to the trouble tree for
DTC C1532
Occupant
Detection
Diagnostic Procedure
with DTC
Some changes were made and a step was added
to the trouble tree for DTC B1650
Rear
Suspension
Rear Shock Absorber
The disassembly illustrations have been changed a
step has been deleted and the identification marker
locations were added
Vehicle
Dynamics
Control
Diagnostic Procedure
with DTC
A change has been made to the trouble tree for
DTC C1532
Occupant
Detection
Diagnostic Procedure
with DTC
Some changes were made and a step was added
to the trouble tree for DTC B1650
Rear
Suspension
Rear Shock Absorber
The disassembly illustrations have been changed a
step has been deleted and the identification marker
locations were added
Body &
Electrical/Wiring
System
2019
Forester
(cont.)
Suspension
Diagnostics
2018
Forester
Suspension
Diagnostics
2017
Forester
Suspension
Diagnostics
2016
Forester
Suspension
Rear
Suspension
Continued...
Bulletin Number: 18-198-20; Date: 03/03/20
Page 3 of 5
YEAR
2015
MODEL
SECTION
SUB-SECTION
PAGE or CHAPTER
DESCRIPTION OF CHANGE
Diagnostics
Vehicle
Dynamics
Control
Diagnostic Procedure
with DTC
A change has been made to the trouble tree for
DTC C1532
Occupant
Detection
Diagnostic Procedure
with DTC
Some changes were made and a step was added
to the trouble tree for DTC B1650
Rear
Suspension
Rear Shock Absorber
The disassembly and assembly procedures have
been changed
Vehicle
Dynamics
Control
Diagnostic Procedure
with DTC
A change has been made to the trouble tree for
DTC C1532
Occupant
Detection
Diagnostic Procedure
with DTC
Some changes were made and a step was added
to the trouble tree for DTC B1650
Suspension
Rear
Suspension
Rear Shock Absorber
The disassembly and assembly procedures have
been changed
Suspension
Rear
Suspension
Rear Shock Absorber
The disassembly and assembly procedures have
been changed
Engine
Diagnostic Procedure
with DTC
Some descriptions were changed and added for
DTC P2682
Cockpit Control
Service Diagnostics
Mode
The procedure to switch to service diagnostics
mode has been changed
Central Gateway
Control Module I/O
Signal
The I/O illustration has been changed
Eyesight
Diagnostics with
Phenomenon
The description for step 2 of phenomenon #6 has
been changed
Transmission
Continuously
Variable
Transmission
Transmission Mounting
System
The removal and installtion procedures for the rear
crossmember have been changed
General
Description
Pre-Delivery
Inspection
PDI Procedure
Some changes and adtions were made to the RAB
inspection
Repair Contents
Note
A description in #7 has been deleted
Brakes
Brake
Air Bleeding
The tightening tourque specs have been changed.
DTC List
B224C added to DTC list
Diagnostics
Infotainment
Diagnostic Procedure
with DTC
Diagnostic procedure for DTC B224C has been
added
Body &
Electrical/Wiring
System
Security and
Locks
Door Lock Control
System
Inspection item #2 has been added to the repair
order.
Suspension
Rear
Suspension
Rear Shock Absorber
The disassembly illustrations have been changed a
step has been deleted and the identification marker
locations were added
Brakes
Brake
Stop Light Switch
Inspection item #2 has been changed
Body &
Electrical/Wiring
System
Exterior/Interior
Trim
Trunk Lid Garnish
An installation caution has been added
Forester
Suspension
Diagnostics
2014
2013
Forester
Forester
Diagnostics
2020
2019
Legacy
Outback
Legacy
Outback
Continued...
Bulletin Number: 18-198-20; Date: 03/03/20
Page 4 of 5
YEAR
MODEL
SECTION
PAGE or CHAPTER
DESCRIPTION OF CHANGE
DTC List
B224C added to DTC list
Infotainment
Diagnostic Procedure
with DTC
Diagnostic procedure for DTC B224C has been
added
Security and
Locks
Door Lock Control
System
Inspection item #2 has been added to the repair
order.
Exterior/Interior
Trim
Trunk Lid Garnish
An installation caution has been added
Suspension
Rear
Suspension
Rear Shock Absorber
The disassembly illustrations have been changed a
step has been deleted and the identification marker
locations were added
Brakes
Brake
Stop Light Switch
Inspection item #2 has been changed
Brakes
Brake
Stop Light Switch
Inspection item #2 has been changed
Suspension
Rear
Suspension
Rear Shock Absorber
The disassembly illustrations have been changed a
step has been deleted and the identification marker
locations were added
Body &
Electrical/Wiring
System
Exterior/Interior
Trim
Trunk Lid Garnish
An installation caution has been added
Brake
Air Bleeding
The tightening tourque specs have been changed.
Brake
Stop Light Switch
Inspection item #2 has been changed
Exterior/Interior
Trim
Trunk Lid Garnish
An installation caution has been added
Suspension
Rear
Suspension
Rear Shock Absorber
The disassembly illustrations have been changed a
step has been deleted and the identification marker
locations were added
Brakes
Brake
Stop Light Switch
Inspection item #2 has been changed
Exterior/Interior
Trim
Trunk Lid Garnish
An installation caution has been added
Suspension
Rear
Suspension
Rear Shock Absorber
The disassembly and assembly procedures have
been changed
Heater &
Airconditioner
HVAC System
Mode Door Actuator
Removal procedures have been added
Diagnostics
HVAC System
Diagnostic Procedure
with DTC
A change has been made to the trouble tree for
DTC B1622
Heater &
Airconditioner
HVAC System
Mode Door Actuator
Removal procedures have been added
Diagnostics
HVAC System
Diagnostic Procedure
with DTC
A change has been made to the trouble tree for
DTC B1622
Diagnostics
2018
2017
Body &
Legacy Electrical/Wiring
Outback
System
Legacy
Outback
Brakes
2016
2015
2011
2010
Body &
Legacy Electrical/Wiring
Outback
System
Body &
Legacy Electrical/Wiring
Outback
System
Legacy
Outback
Legacy
Outback
SUB-SECTION
2009
Legacy
Outback
Diagnostics
Engine H4DOTC
Diagnostic Procedure
with DTC
A change has been made to the trouble tree for
DTC P2444
2008
Legacy
Outback
Diagnostics
Engine H4DOTC
Diagnostic Procedure
with DTC
A change has been made to the trouble tree for
DTC P2444
2007
Legacy
Outback
Diagnostics
Engine H4DOTC
Diagnostic Procedure
with DTC
A change has been made to the trouble tree for
DTC P2444
Bulletin Number: 18-198-20; Date: 03/03/20
Page 5 of 5