15-315-23R

ATTENTION:
GENERAL MANAGER
q
PARTS MANAGER
q
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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© 2023 Subaru of America, Inc. All rights reserved.
SERVICE INFORMATION BULLETIN
APPLICABILITY:
		
		
2023MY Ascent
2024MY Crosstrek
2023-24MY Legacy/Outback
NUMBER: 15-315-23R
SUBJECT:
		
Telematics Data Communications Module 		
(DCM) Product Improvement Reprogramming
DATE:
11/17/23
REVISED:
02/27/24
INTRODUCTION:
This service information bulletin announces the availability of new reprogramming files for the
Data Communications (DCM). These new files include performance and “ease of operation”
enhancements. Subscribed customers will be receiving these files via an over-the-air (OTA) update to
ensure they get the best possible experience from their Telematics system. This software update is not
a mandatory campaign or update program. The reprogramming files contain logic for the following:
•
Accelerated Telematics performance.
•
Enhancements to improve some Telematics functions.
•
Optimized customer experience.
DESCRIPTION OF THE SERVICE PROCEDURE:
Subaru retailers will reprogram the Telematics DCM at no cost to the customer only in the event of an
unsuccessful Over-The-Air (OTA) software update attempt.
Please be advised, the OTA update for this repair will be available on Nov 17, 2023, and will be
expanded to additional vehicles in eight weekly phased releases.
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: 15-315-23R; Revised: 02/27/24
Page 1 of 3
SOFTWARE VERIFICATION:
Read the current DCM software version. If the applicable version does not match the version listed in
the table below, the DCM will require replacement. If the current software does match the version listed
in the table below, proceed to "RESPONDING TO FAILED DCM FOTA" section of this bulletin.
Model
MY
LEGACY/ OUTBACK
23-24
ASCENT
23
CROSSTREK
24
After FOTA or USB reprogramming
DCM_40.07.35_20230406
DCM_40.10.43_20230309
DCM_40.07.35_20230406
DCM_40.10.43_20230309
DCM_40.07.35_20230406
RESPONDING TO FAILED DCM FOTA: CONTACTING TECHLINE SUPPORT
This section outlines the procedures for Technicians responding to customer concerns regarding
failed Data Control Module (DCM) Firmware Over-The-Air (FOTA) updates. If a customer reports a
failed DCM FOTA, Technicians should follow these steps:
1. Verify Customer Information and Concerns:
•
Collect and confirm customer information, including vehicle identification number (VIN),
date and time of the FOTA update attempt, and any error messages encountered. Please try to
capture pictures of any error messages.
•
Collect and be prepared to provide Techline with the DCM and Infotainment Software
versions.
•
Clearly understand the customer’s concern regarding the failed FOTA update.
2. Initial Troubleshooting:
•
Perform basic troubleshooting steps as outlined in the TSB for DCM FOTA updates. This
may include checking for software version compatibility, verifying internet connectivity, and
ensuring sufficient battery charge.
•
If the issue persists after initial troubleshooting, proceed to the next step.
3. Contacting Techline Support:
•
Contact Techline support immediately to report the failed FOTA update, and the
troubleshooting steps already performed.
•
Provide Techline support with all relevant customer information and vehicle details mentioned
in Step 1.
•
Be prepared to describe the troubleshooting steps taken and any error messages encountered.
○ Techline support will work with you to diagnose the issue and determine the following
steps, which may include Additional troubleshooting procedures.
○ Escalating the issue to engineering for further investigation.
○ Providing instructions for repair procedures.
Bulletin Number: 15-315-23R; Revised: 02/27/24
Page 2 of 3
4. Documenting the Interaction:
•
Document all communication with Techline support, including the date and time of contact.
•
Name of Techline representative spoken with.
•
Summary of the issue reported, and troubleshooting performed.
•
Any recommendations or instructions provided by Techline support.
•
Maintain this documentation for future reference and potential warranty claims.
IMPORTANT NOTES:
•
This section serves as a guideline, and specific procedures may vary depending on the TSB
and vehicle model. Please refer to STIS for service procedures.
•
Do not print this or any TSB. Always refer to the latest version of the TSB for the most
accurate and up-to-date information.
•
Refer to the Labor Time Guide for service procedures performed.
Bulletin Number: 15-315-23R; Revised: 02/27/24
Page 3 of 3