2015 Subaru WRX STI service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical diagnostics with wiring diagrams
- Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more
Trims covered
- Base Sedan 4-Door
- Sport-tech Sedan 4-Door
- Limited Sedan 4-Door
- Launch Edition Sedan 4-Door
Engines covered
- 2.5L 2458CC H4 GAS DOHC Turbocharged
- --
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models.
This announcement provides information on the remanufactured CVT transmission program.
This bulletin announces the service manual correction regarding clutch master cylinder reservoir service procedures.
This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models.
This Bulletin provides the diagnostic procedures to be followed when addressing customer concerns of steering wheel/vehicle body vibration when driving at highway speeds when tire/wheel balance is suspected.
This Service Information Bulletin was developed to provide interim guidance for vehicles exhibiting DTC B2A20.
This bulletin contains information to help when attempting to complete the STARLINK Telematics subscription process, an Error Code 202 and / or 204 may occur preventing the process from completing successfully
This announcement provides information on the use of aftermarket services or tools for programming immobilizer keys/fobs.
Showing the 8 most recent of 187 technical service bulletins on file with NHTSA.
DRIVING DOWN THE ROAD AT APPROX 30MPH, HEARD A NOISE, CAR STALLED AND WOULD NOT START BACK UP, BROUGHT TO SUBARU DEALER WHERE I WAS TOLD IT WAS NOT UNDER WARRANTY DUE TO LACK OF OIL, GOT THE CAR BACK
SUBARU IS DENYING ME WARRANTY WORKS OF MY ENGINE'S PISTON RINGLAND FAILURE THAT HAPPENED WITHIN THE 60,000 MILES POWERTRAIN WARRANTY AND BLAMING IT ON MODIFICATIONS. THE ONLY MODIFICATIONS THAT I HAVE
WHEN PULLING THE FUEL DOOR RELEASE LEVER THE DOOR FAILS TO OPEN. HAPPENED ONCE A LITTLE OVER A YEAR AGO. THEN ABOUT 2 MONTHS AGO IT WAS EVERY OTHER TIME I NEEDED TO FILL UP. NOW IT'S EVERY SINGLE TIME
WHEN PULLING THE FUEL DOOR RELEASE LEVER THE DOOR FAILS TO OPEN. HAPPENED ONCE A LITTLE OVER A YEAR AGO. THEN ABOUT 2 MONTHS AGO IT WAS EVERY OTHER TIME I NEEDED TO FILL UP. NOW IT'S EVERY SINGLE TIME
