T16 VoLTE Warranty Extension (15-318-24R) Frequently Asked Ques�ons
Q1. Is the DCM covered under the extension if it has a DTC B2AOC.
ANS: The extension is for batery drain caused by DCM due to internal memory failure. B2A0C does not
cause batery drain and hence is not covered under the terms of the extension.
Q2. Is the DCM backup batery (BUB) covered if failed.
ANS: The DCM Backup Batery (BUB) is a separate component with a different part number from the
DCM and is a maintenance item with useful life of 4 years. The Backup Batery (BUB) is not covered
under the terms of extension. The date code on the BUB indicates when it was manufactured. If it is less
than 4-year-old or no DTCs are present related to the BUB, the BUB need not be replaced.

Q3. A customer has a dead batery, and the DCM is the cause of the dark current drain, they do
not want a subscrip�on. How to proceed – PAR possible?
ANS: If the DCM is causing the current draw and the customer does not want to be subscribed, the DCM
Bypass Box can be used, which is covered by the extension. PAR claims are not needed.
Q4. If the vehicle has batery li�ga�on coverage and coverage under the DCM warranty extension,
which coverage applies in the event a batery needs replaced or recharged as a result of excessive
DCM dark current?
ANS: If the vehicle is presented with a batery draw condi�on to the retailer and the cause is determined
to be the DCM, the batery recharge/replace is covered by the terms of the DCM warranty extension. If
the DCM is not determined to be the root cause of the drain the batery recharge/replace is not covered
by the DCM warranty extension. Please refer to the vehicle inquiry in Subarunet for any other coverages
that may apply to the VIN.
Q5. If the vehicle doesn’t have ac�ve Starlink, and the DCM Bypass Box has been used, but the
draw is s�ll present, do we replace the DCM?
ANS: No, Once the DCM Bypass Box is used, the DCM is extremely unlikely to con�nue to draw excessive
current. If the vehicle s�ll exhibits excessive draw, DCM is not the cause and addi�onal diagnosis need to
be performed following the service manual procedures and published service bulle�ns (15-308-23) to
iden�fy the root cause.
Q6. Customers receive the DCM warranty extension, and they want their vehicle inspected for
said concern, who pays for the diagnosis when no concern is found?
ANS: Retailers are advised that should a customer present for the DCM warranty extension, but an ac�ve
excessive dark current draw is not observed by the technician, they can proceed with bypass box
installa�on if the vehicle is not subscribed to STARLINK proac�vely on a case-by-case basis. For

subscribed customers a no trouble found PA claim may be submited on a case-by-case basis where a
retailer believes tes�ng is necessary. Otherwise refer to Q7.

Q7. If a customer presents with a leter and asks about the statement related to inspec�on and
repair, how do we respond?
ANS: Reassure the customer the extension has been automa�cally applied to their vehicle and there is
no ac�on required unless there is a current concern. Retailers perform regular checks of the batery
health as part of MPI process. If there was a concern with the batery health, the customer would be
informed as a result of those tests. No dark current tes�ng is required under the terms of this extension
unless the customer reports a current concern with a discharged batery. If the customer reports a
concern of a history of recurring dead bateries, please refer to Q6.

Q8. What needs to be done to get the CPO vehicles cer�fied if they have excessive draw from
DCM.
ANS: The vehicles that are going through the CPO cer�fica�on process will need to receive a DCM if the
DCM is found to be the root cause for the excessive draw. DCM Bypass Box cannot be used for CPO
vehicles. Retailers will need to complete the rest of the CPO cer�fica�on process before they can get the
DCM released by the PICs.
Q9. Can a DCM Conversion Box be used in the 2016 – 2018 MY vehicles if the customer does not
wish to be subscribed?
ANS: DCM Bypass box is not recommended to be used in 2016 -2018 MY vehicles. If the customer does
not wish to be subscribed, the DCM needs to be reprogrammed to “Factory Mode” which is the
recommended procedure for 2016 – 2018 vehicles.
Q10. Why are some of the 2019 Legacy and Outback and 2019-2021 WRX STI not covered under
the extension. Vehicle inquiry does not show coverage for some vehicles even though they fall in
the range of coverage.
ANS: The warranty extension covers the excessive batery drain caused by DCMs due to the internal
memory corrup�on. If the vehicle was not equipped with a DCM during manufacturing, it is excluded
from the scope of the extension.
Q11: Is the customer eligible for the warranty extension if the vehicle is already out of the 8 year
or 100,000 miles coverage? What should the retailer do to get warranty claims processed for such
cases?
Ans: Irrespec�ve of the �me of mileage, all vehicles are covered for a period of 1 year (grace period)
from the date of the customer leter under the terms of the extension. Even though the Vehicle Inquiry
in Subarunet may not show this, retailers can proceed with submi�ng a normal warranty claim like
other vehicles under the extension. From April 18, 2024, the claims system has been modified to
automa�cally apply the grace period of 1 year to all vehicles where the extension has expired.