2023 Subaru Forester Service and Repair Manual

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Covers all 2023 Forester trims — Premium Sport Utility 4-Door, Limited Sport Utility 4-Door, Wilderness Sport Utility 4-Door +6 more ·
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2023 Subaru Forester 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

  • Premium Sport Utility 4-Door
  • Limited Sport Utility 4-Door
  • Wilderness Sport Utility 4-Door
  • Convenience Sport Utility 4-Door
  • Touring Sport Utility 4-Door
  • Premium Plus Sport Utility 4-Door
  • Premier Sport Utility 4-Door
  • Sport Sport Utility 4-Door
  • Black Edition Sport Utility 4-Door
  • Base Sport Utility 4-Door

Engines covered

  • 2.5L 2498CC 152Cu. In. H4 GAS DOHC Naturally Aspirated

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
NHTSA #23V75400009/11/2023Component: POWER TRAIN:DRIVELINE:DRIVESHAFT

Subaru of America, Inc. (Subaru) is recalling certain 2024 Crosstrek, Impreza, 2023-2024 Forester, and 2023 WRX vehicles. The front driveshaft assemblies' outer race may develop cracks and break.

Consequence

A broken driveshaft can cause a loss of drive power while driving or vehicle rollaway when the vehic

Remedy

Dealers will inspect and replace the left and right front driveshafts as necessary, free of charge.

TSB #11033077

This Bulletin announces a correction to the diagnostic procedures for certain CVT related DTCs, including P0730, P0746, P0747, P0841, P0846, P0867, P1867, P1894, and P2723.

TSB #11033069

This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models.

TSB #11033065

This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components (e.g. intake valves and / or manifold, and combustion chambers).

TSB #11033063

This bulletin announces a design change made to the CVT Control Valve Body which incorporates an enhanced valve sleeve to improve durability.

TSB #11033056

This announcement provides information on the remanufactured CVT transmission program.

TSB #11033053

This bulletin announces design changes to the heated steering wheel switch assembly and harness. The new switch design relocates the connector, which requires a different harness routing.

TSB #11033052

This bulletin announces a design change to the Power Rear Gate Drive (PRG) Unit to address rare concerns about a very slight drop immediately after the gate is fully open.

TSB #11033051

This bulletin announces the diagnostic procedures to be used when DTCs B1571(REFERENCE CODE INCOMPATIBILITY IMMOBILIZER CM TO ECM) and B1572(IMM CIRCUIT EXCEPT ANTENNA CIRCUIT) are detected by Keyless Access with Push Button Start(KACM).

Showing the 8 most recent of 229 technical service bulletins on file with NHTSA.

20231028Component: SERVICE BRAKESCrash reportedFire reported

Hit a deer the vehicle immediately was on fire and burnt to the ground. It had 3000 miles on it

20231028Component: UNKNOWN OR OTHERCrash reportedFire reported

Hit a deer the vehicle immediately was on fire and burnt to the ground. It had 3000 miles on it

20231028Component: FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKINGCrash reportedFire reported

Hit a deer the vehicle immediately was on fire and burnt to the ground. It had 3000 miles on it

20251028Component: STEERINGCrash reported2 injured

The contact owns a 2023 Subaru Forester. The contact stated that while driving at 15-20 MPH and attempting to make a right turn into the right lane, the steering wheel failed to respond as needed and

20241118Component: LANE DEPARTURE: ASSISTCrash reported1 injured

I was driving on a two lane highway in the mountains and came around a small right-veering turn in the road. I straightened out the wheel to resume traveling straight, and my car’s auto-steer kicked

Showing the 5 most serious of 101 complaints filed with NHTSA.

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