•

If using a DCA-8000 Dynamic Diagnostic Charging System, set the power supply voltage to
13.5 volts.

•

DO NOT connect the DST-i or SDI until the Power Supply mode function has completed its
battery test mode and the Charging Voltage has dropped to and shows a steady 13.5 Volts on
the display.

•

Once Power Supply Mode reaches a steady 13.5 volts, connect the DST-i or SDI to the OBD
connector and proceed with initiating the normal FlashWrite reprogramming process.

•

Amperage will fluctuate based upon the vehicle’s demand for power. NOTE: If the
voltage rises beyond 14V while programming is in process, the procedure will abort.
This can indicate a need to test or charge the vehicle battery before any further attempt at
programming is made.

VERY IMPORTANT:
This information is applicable to the Subaru Midtronics DCA-8000 Dynamic Diagnostic Charging
System and the Subaru Midtronics GR8-1100 Diagnostic Battery Charger ONLY. It does not apply
to any other brand / type of “generic” battery charger whatsoever. ONLY the DCA-8000 and the
GR8-1100 and their Power Supply Mode feature have been tested and approved by SOA.
REMINDER: If the DCA-8000 or GR8-1100 indicates the vehicle’s battery must be charged, charge
it fully using the DCA-8000 or GR8-1100 before proceeding to reprogram the vehicle using the
Power Supply Mode.
Continued...
Bulletin Number: WUV-70R; Revised:11/10/20

Page 5 of 11

NOTE: Control module failures resulting from battery discharge during reprogramming are not a
matter for warranty. Should any DTCs reset after the reprogramming update is performed, diagnose
per the procedure outlined in the applicable Service Manual.
IMPORTANT: The NEW Calibration Identification number (CID) for any newly-installed
programming (as confirmed from the actual control module AFTER installation) should always be
documented on the repair order.
NOTE: The pack file listings provided in this bulletin are the latest available at the time of
publishing. Updates are often released thereafter without revision to the original bulletin. For this
reason, it is critical to always have the latest version of Select Monitor software installed on your
system. You can confirm if a later version is available by entering the CID listed in this bulletin into
FlashWrite. If a newer CID is shown as available in FlashWrite, reprogram using that file.
Step 5- IMPORTANT: APPLICABLE ONLY AFTER REPLACING THE CVT ASSEMBLY OR
THE TRANSMISSION HARNESS: Using the SSM4, perform the AT Learning procedure following
the procedure outlined in the applicable Service Manual.
HARNESS REPLACEMENT TIPS:
The following is being presented as an allowable alternative procedure for more experienced Subaru
trained Technicians. The CVT wiring harness can be replaced without removal of the CVT assembly
using the procedure below:
•

Remove the battery ground terminal, intercooler and the pitching stopper following the
procedures in the applicable Service Manual.

•

Disconnect the CVT harness bracket, the ground terminal and the primary speed sensor
harness connector as shown in the photos below.

RIGHT Side

LEFT Side

•

Raise the vehicle. Remove the center exhaust pipe (rear), selector cable, CVT oil pan, drain
the CVTF and remove the propeller shaft following the procedures in the applicable Service
Manual.

•

Set a transmission stand in place as shown below and remove the transmission rear cross
member. CAUTION: NEVER place any stand or jack on the transmission pan as damage
will occur which could lead to CVT failure.

Continued...
Bulletin Number: WUV-70R; Revised:11/10/20

Page 6 of 11

•

Lower the transmission stand by NO MORE THAN 75mm. Remove the 6 bolts securing
the transmission cover then CAREFULLY slide cover toward the rear of the vehicle.

CAUTION: Never lower the transmission stand by more than 75mm or the A/C hose may be
damaged.
NOTE: TAKE YOUR TIME when removing the transmission cover while being careful to not catch
the inside of it on the external components of the CVT.

•

CAREFULLY remove the harness connectors and retaining clips shown below and remove
the CVT harness from the CVT housing.

•

CAREFULLY remove the control valve body closely following the procedure in the
applicable Service Manual and remove the CVT harness.

•

Install the new transmission harness, reassemble in reverse order of disassembly.

•

When complete, clear the TCM memory of any DTCs, reprogram the TCM following the
normal FlashWrite procedure.
Continued...

Bulletin Number: WUV-70R; Revised:11/10/20

Page 7 of 11

SERVICE PROGRAM IDENTIFICATION LABEL:
Type or print the necessary information on a Campaign Identification Label.
The completed label should be attached to the vehicle’s upper radiator support.
Additional labels are available through normal parts ordering channels. The
part number is MSA6P1302, which comes as one sheet of 20 labels.
Part Number

Applicability

Description

Order Quantity

MSA6P1302

All Models

Campaign Completion Labels (contains
one sheet of 20 labels)

1

WUV-07

CLAIM REIMBURSEMENT AND ENTRY PROCEDURES:
Credit to perform this recall will be based on properly completed repair order information. Retailers
may submit claims through Subarunet.com.
Labor Description

Labor
Operation #

Labor
Time

TCM REPROGRAMMING, Includes: DTC Check, Stall Test and Test Drive

A186-701

0.9

CVT REPLACEMENT, Includes: TCM Reprogramming, DTC Check, Stall Test, Test
Drive, CVTF Cooler Flush and perform AT Learning procedure

A130-341

5.6

CVT HARNESS REPLACEMENT, Includes: TCM Reprogramming, DTC Check, Stall
Test, Test Drive, CVTF Cooler Flush and perform AT Learning procedure

A130-342

6.8

Fail Code

WUV-07

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.

Continued...
Bulletin Number: WUV-70R; Revised:11/10/20

Page 8 of 11

URGENT
IMPORTANT SAFETY RECALL
This notice applies to the VIN below

Subaru Safety Recall WUV-07
NHTSA Recall ID 19V-855
January 2020

Dear Subaru Owner:
This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act.
SUBARU OF AMERICA, INC. has decided that a defect, which relates to motor vehicle safety, exists in certain
2019 model year Ascent vehicles.
You received this notice because our records indicate that you currently own one of these vehicles.
REASON FOR THIS SAFETY RECALL
The transmission hydraulic sensor in your vehicle may incorrectly measure the hydraulic fluid pressure. If the
fluid pressure is measured higher than its actual value, the hydraulic pressure will be reduced. If this occurs, the
drive chain may not have the proper tension resulting in “chain slip”. You may be able to recognize this condition
from irregular noise and/or vibration while driving, and/or warning lamp illumination.
SAFETY RISK
Continuing to operate a vehicle experiencing this condition may ultimately result in loss of power while driving,
increasing the risk of a crash.
WHAT SUBARU WILL DO
Subaru will reprogram the transmission control unit (TCU) at no cost to you. Following the TCU reprogramming
and after a drive test, diagnostic trouble codes (DTC codes) will be inspected and if certain DTCs are present,
the hydraulic sensor harness will be replaced with an updated part at no cost to you. If vehicles are confirmed
to have experienced, or are currently experiencing low drive chain tension, the transmission assembly will be
replaced. This replacement will be at no cost to you.
Additionally, in cases where the CVT transmission assembly is not replaced as a result of this recall, Subaru will
extend the New Car Powertrain Limited Warranty as it applies to your CVT and the chain slip condition. The extended coverage period will run from the vehicle’s original warranty start date and end after ten (10) years or one
hundred thousand (100,000) miles, whichever comes first. The extension will apply only after you have had this
recall repair completed. All other terms of the New Car Powertrain Limited Warranty will continue to apply.
What You Should Do
You should contact any authorized Subaru retailer (dealer) for an appointment to have this safety recall repair
performed, at no cost to you.
a subsidiary of Subaru Corporation

Bulletin Number: WUV-70R; Revised:11/10/20

Continued...
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HOW LONG WILL THE REPAIR TAKE?
The time required for the TCU reprograming and subsequent test drive and DTC inspection is approximately 1
hour. However, in certain rare cases, if the vehicle requires replacement of the hydraulic sensor harness or if the
transmission assembly needs to be replaced, the time required to complete these repairs could extend to approximately 7 hours. Your retailer can provide you with a better estimate of the overall time for this service visit,
as it may be necessary to make your vehicle available for a longer period of time.
For your convenience, your retailer may provide you with a loaner or rental vehicle, at no cost to you, until the
repair is complete.
CALIFORNIA REGISTERED OWNERS
The California Air Resources Board requires that emission related campaigns be completed prior to California’s
vehicle registration renewal process; without this repair, you will not be able to register your vehicle during your
next annual registration. Upon completion of this campaign, your California dealer will complete and provide you
a “Proof of Correction Certificate.” If required, present the certificate to the California Department of Motor Vehicles (the “DMV”) when renewing your California registration as proof of campaign completion. If the DMV does
not request the certificate, we recommend that you keep it for your records.
In addition, the State of California requires that every vehicle must pass an emission test (SMOG Check) every
two years and before it is sold. Without the repair we are providing at no charge, your vehicle may not pass
this test.
OWNER INFORMATION
Government regulations require that recall notifications be sent to the last known owner of record. That information is based primarily on state registration and title data. If you are a lessor of this vehicle, federal regulations
require you to forward this notice to your lessee within ten days.
If you have moved or sold your vehicle, please update this information online at www.subaru.com, select ‘Customer Support,’ then select ‘Address Update’ or ‘Ownership Update’ from the “Quick Links” menu.
IF YOU HAVE PREVIOUSLY PAID FOR A REPAIR
If you have already paid for repairs associated with this condition, you may be eligible for reimbursement. Reimbursement consideration will be based on the amount an authorized Subaru retailer in your area would charge
for the same repair.
Please send the original service repair order, which has the name of the repair facility, date of repair, mileage at
the time of repair, complete 17-digit vehicle identification number (VIN), and your name, with correct mailing address and telephone number to the address listed below.
Subaru of America, Inc.
Customer-Retailer Services Department, Attention: WUV-07 Recall
P.O. Box 9103, Camden, NJ 08101-9877
Please send original receipts only and retain a photocopy for your records. Please be assured that we will attempt to process your reimbursement request as quickly as possible, but it may take up to 60 days for this
process to be completed.
IF YOU NEED FURTHER ASSISTANCE:
To locate the nearest Subaru retailer, you can access our website at www.subaru.com and select ‘Find a Retailer.’
a subsidiary of Subaru Corporation

Bulletin Number: WUV-70R; Revised:11/10/20

Continued...
Page 10 of 11

For additional information, please go to: http://www.wuv07.service-campaign.com.
If you need additional assistance, please contact us directly:
• By e-mail: Go to www.subaru.com and select “Customer Support”
• By telephone: 1-844-373-6614
Monday through Friday between 8:00 a.m. and 7:00 p.m. ET
• By U.S. Postal mail: Write us at Subaru of America, Inc.
Attn: Customer-Retailer Services Department
P.O. Box 9103, Camden, NJ 08101-9877
To subscribe to the NHTSA Recall Notification email System, please go to: https://www-odi.nhtsa.dot.gov/nhtsa/
subscriptions.
Please contact us immediately if the Subaru retailer fails or is unable to make the necessary repairs free of
charge.
You may also contact the Administrator, National Highway Traffic Safety Administration (NHTSA), 1200 New Jersey Ave., SE, Washington, DC 20590 or call the toll-free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800424-9153) or go to http://www.safercar.gov if you believe the Subaru retailer has failed or is unable to remedy
your vehicle without charge within a reasonable amount of time.
Your continued satisfaction with your Subaru is important to us. Please understand that we have taken this
action in the interest of your safety and your vehicle’s proper operation. We sincerely apologize for any inconvenience this matter may cause and urge you to schedule an appointment as soon as possible.
Sincerely,
Subaru of America, Inc.

Notice to Lessors
The lessor of a vehicle who receives this letter must provide a copy of it to the vehicle lessee(s) within 10 business days from receipt. The
lessor must also keep a record of the lessee(s) to whom this letter is sent, the date sent, and the applicable vehicle identification number
(VIN). (For the purposes of this section, a lessor means a person or entity that in the last twelve months prior to the date of this notification
has been the owner, as referenced on the vehicle’s title, of any five or more leased vehicles. A leased vehicle is a vehicle leased to another
person for a term of at least four months.)

a subsidiary of Subaru Corporation

Bulletin Number: WUV-70R; Revised:11/10/20

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