2015 Subaru Forester Repair Manual

Get the original OEM workshop document for the 2015 Subaru Forester, featuring detailed repair instructions, wiring diagrams, and the owner’s manual. These comprehensive PDF files provide all the necessary information for maintaining, diagnosing, and repairing your Subaru Forester. Trusted by Subaru dealership technicians, this is your go-to guide for factory-approved procedures.

Included Content:

1. Workshop Repair Manual

• • Step-by-step maintenance and repair procedures.
  • Detailed troubleshooting and diagnostics for all vehicle systems.

2. Electrical Wiring Diagrams

• • • Complete circuit diagrams for all electrical components.
    • Harness routing and connector locations for easy troubleshooting.

3. Owner’s Manual

• • Basic operational guidance and maintenance tips.
  • Manufacturer-recommended service intervals and safety instructions.

Vehicle Specifications

• Make/Model: Subaru Forester
• Year: 2015 MY SJ*****
• Engine Options:
  • 2.5L H4DO (naturally aspirated)
  • 2.0L H4DOTC (turbocharged)
• Transmission Options:
  • 6-speed manual
  • DOHC Non-Turbo CVT (Continuously Variable Transmission)

Key Features

• Factory-Approved Procedures: Trusted content directly from Subaru engineers.
• Comprehensive Coverage: From basic maintenance to advanced troubleshooting.
• Accurate Wiring Diagrams: Clear and easy-to-follow electrical schematics.
• PDF Format: Convenient access on any digital device.

Why Choose This Manual?

• Official Subaru Resource: The same manual used by Subaru-certified technicians.
• Cost-Effective Repairs: Perform DIY maintenance and repairs with confidence.
• Detailed and Easy-to-Understand: Perfect for professional mechanics and DIY enthusiasts alike.

Who Is This For?

• Subaru Forester Owners: Maintain and repair your vehicle at home.
• Professional Mechanics: Access factory-level service instructions.
• DIY Enthusiasts: Learn and perform repairs with comprehensive guidance.

Download Your Manual Today

Get the ultimate guide for your 2015 Subaru Forester and take control of your vehicle’s maintenance and repair needs!

Table of Contents : 2015 Subaru Forester Repair Manual

GENERAL

• GENERAL INFORMATION
• PERIODIC MAINTENANCE SERVICES

ENGINE 2.5L (H4DO)

• COOLING
• EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
• ENGINE (DIAGNOSTICS)
• EXHAUST
• FUEL INJECTION (FUEL SYSTEMS)
• List of Diagnostic Trouble Code (DTC)
• IGNITION
• INTAKE (INDUCTION)
• LUBRICATION
• MECHANICAL
• SPEED CONTROL SYSTEMS
• STARTING/CHARGING SYSTEMS

ENGINE 2.0L (H4DOTC)

• COOLING
• EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
• ENGINE (DIAGNOSTICS)
• EXHAUST
• FUEL INJECTION (FUEL SYSTEMS)
• List of Diagnostic Trouble Code (DTC)
• IGNITION
• INTAKE (INDUCTION)
• LUBRICATION
• MECHANICAL
• SPEED CONTROL SYSTEMS
• STARTING/CHARGING SYSTEMS

TRANSMISSION

• CLUTCH SYSTEM
• CONTINUOUSLY VARIABLE TRANSMISSION (DOHC non-turbo)
• CONTINUOUSLY VARIABLE TRANSMISSION (2.0 L DOHC turbo)
• CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS)
• CONTROL SYSTEMS
• List of Diagnostic Trouble Code (DTC)
• MANUAL TRANSMISSION AND DIFFERENTIAL

CHASSIS

• BRAKE
• BRAKE VACUUM CONTROL (BVC) (DIAGNOSTICS)
• DIFFERENTIALS
• DRIVE SHAFT SYSTEM
• FRONT SUSPENSION
• PARKING BRAKE
• POWER-ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS)
• POWER-ASSISTED SYSTEM (POWER STEERING)
• REAR SUSPENSION
• TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)
• TRANSFER CASE
• VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
• VEHICLE DYNAMICS CONTROL (VDC)
• WHEEL AND TIRE SYSTEM

BODY

• AIRBAG SYSTEM
• AIRBAG SYSTEM (DIAGNOSTICS)
• AUTO HEADLIGHT BEAM LEVELER SYSTEM (DIAGNOSTICS)
• BODY CONTROL SYSTEM (DIAGNOSTICS)
• BODY STRUCTURE
• COMMUNICATION SYSTEM
• CRUISE CONTROL SYSTEM
• CRUISE CONTROL SYSTEM (DIAGNOSTICS)
• ENTERTAINMENT
• EXTERIOR BODY PANELS
• EXTERIOR/INTERIOR TRIM
• EyeSight (DIAGNOSTICS)
• EyeSight
• GLASS/WINDOWS/MIRRORS
• HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)
• HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
• IMMOBILIZER (DIAGNOSTICS)
• INSTRUMENTATION/DRIVER INFO (DIAGNOSTICS)
• INSTRUMENTATION/DRIVER INFO
• KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS)
• LAN SYSTEM (DIAGNOSTICS)
• LIGHTING SYSTEM
• OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
• POWER REAR GATE SYSTEM (DIAGNOSTICS)
• POWER REAR GATE SYSTEM
• SEAT BELT SYSTEM
• SEATS
• SECURITY AND LOCKS
• SUNROOF/T-TOP/CONVERTIBLE TOP (SUNROOF)
• WIPER AND WASHER SYSTEMS

WIRING

• WIRING SYSTEM

OWNERS MANUAL

• 2015 FORESTER OWNER’S MANUAL

SAMPLE PAGES

Common Issues With The 2015 Subaru Forester

The 2015 Subaru Forester is a popular compact SUV known for its reliability, standard all-wheel drive, and practicality. However, like any vehicle, it has its share of common electrical and mechanical issues, recalls, and maintenance requirements. In this blog, we’ll dive into the technical aspects of the 2015 Forester, explore its common problems, discuss recalls, and compare it to its competitors.

Most Common Problems:

1. Oil Consumption: Some 2015 Forester owners have reported excessive oil consumption, necessitating frequent oil level checks and top-offs.
   carcomplaints.com

    

2. Suspension Components: Premature wear of front lower control arm bushings, CV axles, and rear wheel bearings has been noted, leading to potential handling issues and the need for early replacements.
   subaruforester.org

    

3. CVT Fluid Leaks: Continuous Variable Transmission (CVT) fluid leaks are reported as a common issue, which can lead to transmission performance problems if not addressed promptly.
   subaruforester.org

    

4. Wheel Stud Breakage: Instances of broken wheel studs have been reported, which can affect wheel integrity and safety.
   subaruforester.org

    

Common Electrical Issues

The 2015 Subaru Forester is generally reliable, but some owners have reported electrical issues. Here are the most common ones:

1. Battery Drain Problems
   • Some owners have reported premature battery failure or parasitic drain. This is often caused by faulty alternators, aftermarket accessories, or issues with the electrical system.
   • Solution: Regularly check the battery health and ensure the alternator is functioning correctly. If the issue persists, inspect the wiring for parasitic drains.
2. Blown Fuses
   • A few owners have experienced blown fuses, particularly in the dashboard or infotainment system. This is often due to overloading the electrical system or faulty components.
   • Solution: Replace the fuse with the correct amperage and inspect the circuit for potential shorts.
3. Infotainment System Glitches
   • The Starlink infotainment system in the 2015 Forester has been known to freeze, reboot, or fail to connect to devices.
   • Solution: Software updates from Subaru dealerships can often resolve these issues. If the problem persists, the head unit may need replacement.

Common Mechanical Issues

The 2015 Forester is mechanically sound, but a few recurring problems have been reported:

1. Excessive Oil Consumption
   • Some 2.5L FB25 engines in the 2015 Forester have been known to consume excessive oil between oil changes. This issue was addressed in a Technical Service Bulletin (TSB) by Subaru.
   • Solution: Regularly monitor oil levels and top off as needed. If the problem is severe, Subaru may perform an engine repair or replacement under warranty.
2. CVT (Continuously Variable Transmission) Issues
   • Owners have reported jerking, hesitation, or shuddering during acceleration, particularly in models equipped with the CVT.
   • Solution: Subaru has released software updates to improve CVT performance. If the issue persists, the transmission may need to be inspected or replaced.
3. Suspension Noise
   • Some drivers have reported clunking or knocking noises from the suspension, often caused by worn struts or bushings.
   • Solution: Inspect and replace worn suspension components as needed.
4. Brake Problems
   • A few owners have noted premature brake wear or squeaking noises.
   • Solution: Regularly inspect and replace brake pads and rotors as needed.

Recalls:

The 2015 Subaru Forester has been subject to several recalls. Here are the most notable ones:

• Occupant Detection System (ODS) Recall:

• • Subaru recalled certain 2015-2018 Forester models equipped with heated seats due to a potential loosening of an electrical connection in the front passenger seat. This issue could deactivate the front passenger airbag, increasing the risk of injury in a crash.
    consumerreports.org

     

• Brake Light Switch Malfunction:

  • A recall was issued for multiple Subaru models, including the 2015 Forester, due to potential malfunction of the brake light switch. This could prevent the brake lights from illuminating and also prevent keyless ignition vehicles from starting or automatic transmissions from shifting out of Park.
    kbb.com

     

• Passenger Airbag Sensor Recall

• • Issue: The occupant detection system for the passenger airbag may malfunction, preventing the airbag from deploying in a crash.
  • Solution: Subaru issued a recall to replace the sensor.

• Ignition Coil Recall

• • Issue: A faulty ignition coil could cause the engine to stall, increasing the risk of a crash.
  • Solution: Subaru replaced the ignition coils in affected vehicles.

• Windshield Wiper Motor Recall

• • Issue: The wiper motor could fail due to electrical issues, reducing visibility in adverse weather conditions.
  • Solution: Subaru replaced the wiper motor in affected vehicles.

Always check the National Highway Traffic Safety Administration (NHTSA) website or contact a Subaru dealership to confirm if your vehicle is affected by any recalls.

Technical Service Bulletins (TSBs):

Subaru has issued TSBs addressing various issues for the 2015 Forester, including:

• Engine Performance: Guidance on addressing oil consumption and related engine performance concerns.
• Transmission Updates: Recommendations for CVT fluid inspection and addressing potential leaks.
• Suspension and Steering: Instructions for diagnosing and replacing worn suspension components and addressing steering concerns.

Recommendations:

• Regular Maintenance: Adhere to the manufacturer’s recommended maintenance schedule, including regular oil level checks and timely servicing, to mitigate potential issues.
• Recall Compliance: Ensure all recall repairs have been completed. You can check for open recalls using your vehicle’s VIN on the Subaru Recall Page.
• Monitor for Symptoms: Stay vigilant for signs of the common problems mentioned above, such as unusual noises, warning lights, or changes in vehicle performance, and consult a qualified mechanic promptly if they occur.