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Service bulletin WTB-63R

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10179385
Published by NHTSA2020-09-04
Manufacturer's numberWTB-63R
Manufacturer's date2020-08-12
NHTSA componentELECTRICAL SYSTEM; PARKING BRAKE

NHTSA's summary

Subaru of America, Inc. (Subaru) is initiating a service campaign for all 2015 model year Legacy and Outback vehicle. Subaru has determined that vehicles affected by this Service Program require reprogramming of the Electronic Parking Brake (EPB) system.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Brakes, Electrical system, Parking brake

Vehicles listed
SUBARU LEGACY2015
SUBARU OUTBACK2015

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
06-87-22R2023-07-03. Service bulletin. "In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the electronic connector lock tab for the Electric Parking Brake (EPB) assembly used in the listed models."
06-87-22R2022-12-01. Service bulletin. In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the electronic connector lock tab for the Electric Parking Brake (EPB) assembly used in the above listed models and model years from (3) years or thirty-six thousand (36,000) miles (whichever comes first) to (15) years / unlimited mileage.
Subarunet Announ2022-12-01. Service bulletin. In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is announcing an extension to the Basic New Car Limited Warranty for the Electronic Parking Brake (EPB) connector lock tab for certain 2015-2018MY Legacy, Outback & WRX models equipped with automatic transmissions.
16-112-18R2021-11-02. Service bulletin. This bulletin announces a design change to the CVT select lever (shifter) mechanism in response to isolated customer concerns of not being able to remove the key from the ignition switch when the vehicle is in Park.
Subarunet Announ2021-11-02. Service bulletin. (Subaru Retailers) As part of Subaru’s dedication to customer satisfaction, Subaru of America, Inc. (SOA) is announcing an extension to the Basic New Car Limited Warranty for the CVT Parking Switch for certain 2015-2018 MY Legacy, Outback, 2012-2018 MY Impreza, 2013-2018 MY Crosstrek, 2015-2018 MY WRX and 2014-2018MY Forester vehicles.
Subarunet Announ2021-11-02. Service bulletin. (Owner Letter) As part of Subaru of America’s dedication to customer satisfaction, this letter is to inform you of an extension to the Basic New Car Limited Warranty for your vehicle’s CVT Parking Brake Switch.
WTB-63R2021-02-18. Service bulletin. Subaru of America, Inc. (Subaru) is initiating a service campaign for all 2015 model year Legacy and Outback vehicles. Subaru has determined that vehicles affected by this Service Program require reprogramming of the Electronic Parking Brake (EPB) system.
WTB-63R2020-11-05. Service bulletin. Subaru of America, Inc. (Subaru) is initiating a service campaign for all 2015 model year Legacy and Outback vehicles. Subaru has determined that vehicles affected by this Service Program require reprogramming of the Electronic Parking Brake (EPB) system.
WTB-63B22018-06-11. Service bulletin. New Service Program: WTB-63 Electronic Parking Brake (EPB). ReprogrammingThe EPB system is designed such that the parking brake will apply upon initial activation and re-apply approximately 150 seconds (2 ½ minutes) after initial activation. Due to improper software programing of the EPB system, if an affected vehicle?s ignition switch is turned to the ?ON? position at the same time the parking brake is re-applying, electric current will be provided continuously to the left rear EPB motor, eventually causing the motor to seize and prevent release of the parking brake. Should the left EPB motor seize, it will be necessary to replace the EPB Motor Gear Unit- EPB LH.
WTB-63B2018-06-11. Service bulletin. TSB. The EPB system is designed such that the parking brake will apply upon initial activation and re-apply approximately 150 seconds (2 ½ minutes) after initial activation. Due to improper software programing of the EPB system, if an affected vehicle?s ignition switch is turned to the ?ON? position at the same time the parking brake is re-applying, electric current will be provided continuously to the left rear EPB motor, eventually causing the motor to seize and prevent release of the parking brake. Should the left EPB motor seize, it will be necessary to replace the EPB Motor Gear Unit- EPB LH.