ATTENTION:
GENERAL MANAGER

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PARTS MANAGER

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CLAIMS PERSONNEL

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IMPORTANT - All
Service Personnel
Should Read and
Initial in the boxes
provided, right.

SERVICE MANAGER

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© 2025 Subaru of America, Inc. All rights reserved.

SERVICE BULLETIN
APPLICABILITY: 2019-23MY Forester w/ Gen 3.1
2019-23MY Impreza & Crosstrek w/ Gen 3.1
2019-21MY WRX/STI w/ Gen 3.1
2022-23MY WRX/STI w/ CP1
2019-22MY Ascent w/ Gen 3.1

2019MY Outback & Legacy w/ Gen 3.1

2020-22MY Outback & Legacy w/ CP1
SUBJECT:

NUMBER: 15-322-25R
DATE: 01/28/25
REVISED: 02/18/25

CP1 & Gen 3.1 Head Unit Warranty Extension

INTRODUCTION:
In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car
Limited Warranty coverage for the CP1 & Gen 3.1 Head Unit used in the above listed models and
model years to (8) eight years / 150,000 miles to cover certain qualifying repairs to the infotainment
audio system. Qualifying repairs under the Warranty Extension include a failure in the applicable
head unit resulting in a black or blank screen, a loss of audio, repeated rebooting, or/and inability
to use one of the following features: CarPlay/Android Auto, Navigation, Bluetooth, or touch screen
operation. The extension does NOT cover issues caused by physical damage such as water damage or
screen impact.
NOTE: In some cases, these issues may occur intermittently.
These vehicles are to be repaired with the following service procedures:
1. Reprogramming is the first option when new software is confirmed to be available.
2. If the head unit has the latest software available and the fault condition(s) is present, the head
unit will require replacement.
3. If a qualifying condition is duplicated after head unit replacement, the vehicle is eligible for
an additional one-time software reprogramming if new software becomes available within the
period covered by the extension.
Parts (for replacing) and labor cost will be covered under this Warranty Extension one time ONLY.
The repairs are only to be covered after thorough diagnosis as per the applicable Service Manual has
confirmed the head unit to be the fault source. Other audio components such as amplifiers, speakers,
and wiring will not be covered by this Warranty Extension.
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: 15-322-25R; Revised: 02/18/25

Page 1 of 4

All diagnosis and repairs MUST be completed prior to the expiration of this Warranty Extension.
Subaru of America will reimburse customers who have previously paid for repairs or replacement
related to the Warranty Extension due to conditions normally being covered if the vehicle was
affected by the terms of the New Vehicle Limited Warranty.
ALWAYS perform a Vehicle Coverage Inquiry on Subarunet to determine eligibility for this Warranty
Extension before proceeding with any repair. See sample vehicle inquiry result below.
Extensions
Effective
Date

Expiration
Date

Coverage Type- Description

Addl Miles

Addl Months

Status

XXXXX

XXXXX

CP1 & Gen 3.1 Head Unit Warranty
Extension

114,000

60

Active

All affected vehicles with a qualifying concern, regardless of mileage and Warranty start date will be
covered for these repairs for a period of one year.
PART INFORMATION:
Due to the vast variety of head units, it is important to confirm the applicable part based on the
specific VIN being repaired. Once the applicable part is confirmed, use the table below to proceed on
the part order.
Head Unit Type

Link

CP1

Denso Ten

Harman 3.1

United Radio

SERVICE PROCEDURE / INFORMATION:
STEP 1: Confirm the customer concern is with the applicable head unit resulting in a black or blank
screen, a loss of audio, repeated rebooting, or/and inability to use one of the following features:
CarPlay/Android Auto, Navigation, Bluetooth, or touch screen operation. The extension does NOT
cover issues caused by physical damage such as water damage or screen impact.
STEP 2: Check the head unit software status. If new software is available, reprogram the head unit
using the latest software available. For details regarding head unit reprogramming refer to TSB 15236-18 for Harman Gen3.1 or TSBs: 15-261-20 or 15-297-22 or 15-301-22 for Denso CP1 or TSB
15-305-22 for Denso CP1.5 as applicable. If the head unit has the latest software available and the
fault condition(s) is present, proceed to Step 3.
STEP 3: (ONLY required if the current software is the newest available or reprogramming
does NOT resolve the customer concern). The service procedures for head unit replacement remain
unchanged. Always refer to the applicable Service Manual and review the full requirements of the
repair being performed. The Service Manual procedures contain information critical to performing
an effective repair the first time, every time. This includes but is not limited to important SAFETY
precautions, proper inspection criteria, necessary special tools, required processes and related onetime-use parts needed for a complete and lasting repair.
Continued...
Bulletin Number: 15-322-25R; Revised: 02/18/25

Page 2 of 4

ADDITIONAL NOTES:
•

Refer to the applicable Service Manual and review: General Description > Repair Contents
> Action required before & after Battery Disconnect. Additionally, record any stored seat
position(s) before proceeding. Relearn any seat position memory after work is complete. If
the power rear gate (PRG) height has been customized, that position must also be noted and
relearned.

•

Refer to the applicable Service Manual: Airbag System & Seat Belt System >
ENTERTAINMENT & MONITORING > Audio

•

Whenever reconnecting the ground cable terminal to the battery sensor, torque to 7.5Nm
(5.5ft.-lbs. or 66inch-lbs.) while supporting the sensor with the other hand as outlined in the
applicable Service Manual under: STARTING/CHARGING SYSTSEMS > Battery Sensor.

•

If a qualifying condition is duplicated after head unit replacement, the vehicle is eligible for
an additional one-time software reprogramming if new software becomes available within the
period covered by the extension.

WARRANTY / CLAIM INFORMATION:
If head unit replacement is required and the vehicle is within the parameters of this Warranty
Extension, use the coding below to submit a Warranty Claim:
2020-2022MY Outback/Legacy with CP1
2022-2023MY WRX/STI with CP1
Labor Description

Labor Operation #

Labor
Time

DENSO COCKPIT CONTROL UNIT EXCHANGE R&R

B810-086

.6

SATELLITE RADIO REACTIVATION

C031-105

.2

ELECTRICAL TESTING & DIAGNOSIS

C860-001

.4

Fail Code

ZWE-43

2020-2022MY Outback/Legacy with CP1
2022-2023MY WRX/STI with CP1
Labor Description

Labor Operation #

Labor
Time

DENSO CENTER INFO DISPLAY EXCHANGE R&R

B811-086

.6

ELECTRICAL TESTING & DIAGNOSIS

C860-001

.4

Fail Code

ZWF-43

Continued...
Bulletin Number: 15-322-25R; Revised: 02/18/25

Page 3 of 4

Denso CCU replacement claims will require detailed input of the software version PRIOR to
replacement. The claim submission for exchange replacements will require the Ten Claim Number
from the invoice.
2019-2022MY Ascent with Harman Gen3.1
2019MY Outback/Legacy with Harman Gen3.1
2019-2023MY Forester with Harman Gen3.1
2019-2023MY Impreza/Crosstrek with Harman Gen3.1
2019-2021MY WRX/STI with Harman Gen3.1
Labor Description

Labor Operation #

Labor
Time

HARMAN AUDIO UNIT EXCHANGE R&R

B850-086

.6

ELECTRICAL TESTING & DIAGNOSIS

C860-001

.4

Fail Code
ZVE-43

The claim submission for exchange replacements will require the MCO number / exchange number.
2020-2022MY Outback/Legacy with CP1
2022-2023MY WRX/STI with CP1
Labor Description

Labor Operation #

Labor
Time

Fail Code

DENSO CP1 SOFTWARE UPDATE
(INCLUDES VERSION CHECK)

A832-286

.6

ZWB-48

Claim submission requires customer complaint description & new / installed software version.

2019-2022MY Ascent with Harman Gen3.1
2019MY Outback/Legacy with Harman Gen3.1
2019-2023MY Forester with Harman Gen3.1
2019-2023MY Impreza/Crosstrek with Harman Gen3.1
2019-2021MY WRX/STI with Harman Gen3.1
Labor Description

Labor Operation #

Labor
Time

Fail Code

HARMAN AUDIO / NAVI UNIT REPROGRAMMING
(INCLUDES VERSION CHECK)

A031-168

.6

ZVG-48

Claim submission requires customer complaint description & new / installed software version.
IMPORTANT REMINDERS:
•

SOA strongly discourages the printing and/or local storage of service information as previously
released information and electronic publications may be updated at any time.

•

Always check for any open recalls or campaigns anytime a vehicle is in for servicing.

•

Always refer to STIS for the latest service information before performing any repairs.

Bulletin Number: 15-322-25R; Revised: 02/18/25

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