NHTSA ID Number: 10219490
Manufacturer Communication Number: 18-208-22
TSB/Document Date: 2022-09-08
Summary
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.
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TSB/Document ID: 18-208-22
Replacement Service Bulletin Number:
MFR Communication Date: 2022-08-23
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT
MFR Component System:
MFR Component Subsystem:
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ATTENTION:
GENERAL MANAGER
q
PARTS MANAGER
q
CLAIMS PERSONNEL
q
IMPORTANT - All
Service Personnel
Should Read and
Initial in the boxes
provided, right.
SERVICE MANAGER
q
© 2021 Subaru of America, Inc. All rights reserved.
SERVICE BULLETIN
APPLICABILITY:
SUBJECT:
2019-22MY Ascent
Service Manual Corrections
NUMBER:
DATE:
18-208-22
08/23/22
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
Power Rear Gate System
Power Rear Gate Control
Module > Removal >
Installation
A Caution Was Added
Seats
General Description >
Component Power Seat
System > Installation
Tourque Specs Were Updated
Instrumentation/ Driver Info
Combination Meter
System > Operation
The Varient Work Procedure Was
Changed
Diagnostic Porcedure w/
DTC
Changes Were Made To The Trouble
Trees of Many Pressure Control and
Shift Control Solenoid DTCs
Diagnostics w/
Phenomenon
The Symptoms Table Was Changed and
An Inspection Procedure Was Added
Eyesight Diagnostics
Diagnostic Procedure w/
ECU Cancel Code > 12
The Connector & Terminal for TT Step 3
Were Changed
Reverse Automatic Braking
Diagnostic Procedure w/
DTC > B2C11
A Change Was Made to Step 2 Of The
TT
Body & Body
Electrical/
Wiring System
Transmission Diagnostics
2019
Ascent
Diagnostics
Eyesight Diagnostics
ACC Cancel Codes Display Contents of Diagnosis Was Changed For
> List
Cancel Code 0A
Engine Diagnostics
Diagnostic Procedure w/
DTC >P2270 > P2271
Changes Were Made to Step 3 Of Both
Trouble Trees
Infotainment Diagnostics
Diagnostic Procedure w/
DTC > B2255
The Entire Diagnostic Procedure For
This DTC Was Changed
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: 18-228-22; Date: 08/23/22
Page 1 of 3
YEAR
2019
cont.
MODEL
SECTION
SUB-SECTION
PAGE or CHAPTER
DESCRIPTION OF CHANGE
Emission Control
General Description
>Component
The PCV System Illustration Was
Changed
Mechanical
Engine Oil Pressure >
Inspection
The Engine Oil Pressure Standard Was
Changed
Fuel Injection
Engine Control Module >
Installation
A Caution Was Added
General Description >
Specification
The Caster Value Was Changed
Power Rear Gate System
Power Rear Gate Control
Module > Removal >
Installation
A Caution Was Added
Seats
General Description >
Component Power Seat
System > Installation
Tourque Specs Were Updated
Instrumentation/ Driver Info
Combination Meter
System > Operation
The Varient Work Procedure Was
Changed
Diagnostic Porcedure w/
DTC
Changes Were Made To The Trouble
Trees of Many Pressure Control and
Shift Control Solenoid DTCs
Diagnostics w/
Phenomenon
The Symptoms Table Was Changed and
An Inspection Procedure Was Added
Eyesight Diagnostics
Diagnostic Procedure w/
ECU Cancel Code > 12
The Connector & Terminal for TT Step 3
Were Changed
Reverse Automatic Braking
Diagnostic Procedure w/
DTC > B2C11
A Change Was Made to Step 2 Of The
TT
Engine
Ascent
Body & Body
Electrical/
Wiring System
Transmission Diagnostics
2020
Ascent
Diagnostics
Eyesight Diagnostics
Engine Diagnostics
Diagnostic Procedure w/
DTC >P2270 > P2271
Changes Were Made to Step 3 Of Both
Trouble Trees
Infotainment Diagnostics
Diagnostic Procedure w/
DTC > B2255
The Entire Diagnostic Procedure For
This DTC Was Changed
Mechanical
Engine Oil Pressure >
Inspection
The Engine Oil Pressure Standard Was
Changed
Fuel Injection
Engine Control Module >
Installation
A Caution Was Added
General Description >
Specification
The Caster Value Was Changed
Body & Body
Electrical/
Wiring System
Power Rear Gate System
Power Rear Gate Control
Module > Removal >
Installation
A Caution Was Added
Instrumentation/ Driver Info
Combination Meter
System > Operation
The Varient Work Procedure Was
Changed
Engine
Mechanical
Engine Oil Pressure >
Inspection
The Engine Oil Pressure Standard Was
Changed
General Description >
Specification
The Caster Value Was Changed
Engine
2021
ACC Cancel Codes Display Contents of Diagnosis Was Changed For
> List
Cancel Code 0A
Ascent
Bulletin Number: 18-228-22; Date: 08/23/22
Page 2 of 3
YEAR
2021
cont.
MODEL
Ascent
SECTION
SUB-SECTION
PAGE or CHAPTER
DESCRIPTION OF CHANGE
Engine Diagnostics
Diagnostic Procedure w/
DTC >P2270 > P2271
Changes Were Made to Step 3 Of Both
Trouble Trees
Infotainment Diagnostics
Diagnostic Procedure w/
DTC > B2255
The Entire Diagnostic Procedure For
This DTC Was Changed
Diagnostic Porcedure w/
DTC
Changes Were Made To The Trouble
Trees of Many Pressure Control and
Shift Control Solenoid DTCs
Diagnostics w/
Phenomenon
The Symptoms Table Was Changed and
An Inspection Procedure Was Added
Reverse Automatic Braking
Diagnostic Procedure w/
DTC > B2C11
A Change Was Made to Step 2 Of The
TT
Tranmission Diagnostics
Diagnostics w/
Phenomenon
The Symptoms Table Was Changed and
An Inspection Procedure Was Added
Infotainment Diagnostics
Diagnostic Procedure w/
DTC > B2255
The Entire Diagnostic Procedure For
This DTC Was Changed
1.2, 9.1, 9.3
1-6, 9-2, 9-4, 9-6
Descriptions & Illustrations Were
Deleted
Diagnostics
Transmission Diagnostics
Diagnostics
2022
Ascent
New Car Info
Bulletin Number: 18-228-22; Date: 08/23/22
Page 3 of 3
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