2021 Subaru Crosstrek Service and Repair Manual

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Covers all 2021 Crosstrek trims — Limited Wagon 4-Door, Touring Wagon 4-Door, Hybrid Wagon 4-Door +6 more ·
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2021 Subaru Crosstrek 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

  • Limited Wagon 4-Door
  • Touring Wagon 4-Door
  • Hybrid Wagon 4-Door
  • Outdoor Wagon 4-Door
  • Convenience Wagon 4-Door
  • Sport Wagon 4-Door
  • Premium Wagon 4-Door
  • Base Wagon 4-Door
  • Hybrid Limited Wagon 4-Door

Engines covered

  • 2.5L 2498CC 152Cu. In. H4 GAS DOHC Naturally Aspirated
  • 2.0L 1995CC H4 GAS DOHC Naturally Aspirated
  • 2.0L 1995CC H4 PLUG-IN HYBRID EV-GAS (PHEV) 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 #23V75500009/11/2023Component: POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCH

Subaru of America, Inc. is recalling certain model year 2021 Crosstrek, 2022 Forester, 2021-2023 Legacy, and Outback vehicles. An insufficient weld may allow water to enter the inhibitor switch, caus

Consequence

An inoperative inhibitor switch may prevent the reverse lights from illuminating and the rearview ca

Remedy

Dealers will replace the inhibitor switch, free of charge. Owner notification letters were mailed J

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 #11033056

This announcement provides information on the remanufactured CVT transmission program.

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).

TSB #11032040

This bulletin announces the service manual correction regarding clutch master cylinder reservoir service procedures.

TSB #11032039

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

TSB #11032035

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.

Showing the 8 most recent of 308 technical service bulletins on file with NHTSA.

20250715Component: SEAT BELTSCrash reported2 injured

We were rear ended on the interstate. Cars in front of us stopped and we also came to a complete stop and a few moments later we were hit. During the collision, none of the airbags were deployed. Both

20250715Component: SEATSCrash reported2 injured

We were rear ended on the interstate. Cars in front of us stopped and we also came to a complete stop and a few moments later we were hit. During the collision, none of the airbags were deployed. Both

20250715Component: AIR BAGSCrash reported2 injured

We were rear ended on the interstate. Cars in front of us stopped and we also came to a complete stop and a few moments later we were hit. During the collision, none of the airbags were deployed. Both

20230816Component: FORWARD COLLISION AVOIDANCE: WARNINGSCrash reported2 injured

While driving on the highway in the slow lane (furthest to the right), traveling at approximately 50 mph, I came to be behind a tractor trailer. Before I had a chance to pass the tractor trailer, it s

20230816Component: FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKINGCrash reported2 injured

While driving on the highway in the slow lane (furthest to the right), traveling at approximately 50 mph, I came to be behind a tractor trailer. Before I had a chance to pass the tractor trailer, it s

Showing the 5 most serious of 150 complaints filed with NHTSA.

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