TSB 063103 — Subaru Service bulletin

063103 is a service bulletin on file with NHTSA for 4 Subaru models, 1997–1999 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.

What the bulletin says. REPLACEMENT OF THE ELECTRONIC CONTROL UNIT (ECU) FOR ANTI-LOCK BRAKE SYSTEM (ABS) REPAIR. *TT UPDATE.

NHTSA's own summary of the document, quoted from the public manufacturer-communications file.

1Document filed
4Vehicles named
3Model years

Vehicles and model years 063103 names

VehicleModel years
Subaru Forester 1998
Subaru Impreza 1998
Subaru Legacy 1997, 1998, 1999
Subaru Outback 1997, 1998, 1999

Every document filed under 063103

Document IDFiledType
063103 December 8, 2004 Service bulletin

What 063103 covers

Brakes & stability — the component vocabulary NHTSA files this communication under.

← All Subaru Forester TSB years TSB lookup by model

Questions buyers ask

What is TSB 063103?

063103 is a service bulletin filed with NHTSA by Subaru, covering 4 Subaru models across the 1997–1999 model years. NHTSA's summary reads: REPLACEMENT OF THE ELECTRONIC CONTROL UNIT (ECU) FOR ANTI-LOCK BRAKE SYSTEM (ABS) REPAIR. *TT UPDATE.

Which vehicles does 063103 cover?

NHTSA's file names Subaru Forester (1998); Subaru Impreza (1998); Subaru Legacy (1997–1999); Subaru Outback (1997–1999). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.

Is TSB 063103 a recall, and is the repair free?

No. 063103 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.

How do I get the full text of 063103?

Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under 063103, its date, and NHTSA's own summary from the public file.

Data updated 2026-08-20 from NHTSA's public records

Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under 063103. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.