The service and repair manual for the 2021 Subaru WRX — the 2.0L H4 engine, 8 trims. Matched to this exact model year, so the specifications and sequences are the ones Subaru published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 2021 |
|---|---|
| Engines | 2.0L H4 — 122 cu in, DOHC, turbocharged |
| Trims | EyeSight Sedan 4-Door · Premium Sedan 4-Door · Base Sedan 4-Door · Sport Sedan 4-Door · Sport-tech Sedan 4-Door · 6 Man Sedan 4-Door +2 |
| Other 2021 WRX variants | WRX STI → |
| Federal record | 1 recall · 20 complaints · 200 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2021 WRX manual
03 / ContentsSections in the manual
- Quick Lookups 285
- General Information 2,334
- Accessories & Equipment 2,647
- Heating, Ventilation & A/C (HVAC) 406
- Body & Frame 644
- Maintenance 14
- Brakes 577
- Restraints 338
- Drivelines & Axles 225
- Steering 123
- Electrical 885
- Suspension 213
- Engine Mechanical 707
- Transmission 448
- Engine Performance 2,398
- Axle Shaft Nut (Front) 162
- Axle Shaft Nut (Rear) 140
04 / Known issuesRecalls on federal record for the 2021 WRX
- Exterior Lighting — back up lights › switch · 22V522000Inoperative backup lights and an inoperative rearview camera can reduce vehicle visibility and drive.
Owners have filed 20 complaints and Subaru has issued 200 technical service bulletins for the 2021 WRX. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2021 WRX manual
Is this manual specific to the 2021 WRX?
Yes. It is the OEM manual matched to the 2021 model year, covering the 2.0L H4 across the EyeSight Sedan 4-Door, Premium Sedan 4-Door, Base Sedan 4-Door, Sport Sedan 4-Door, Sport-tech Sedan 4-Door, 6 Man Sedan 4-Door, Limited Sedan 4-Door, CVT Sedan 4-Door trims. Specifications and procedure sequences are the ones Subaru published for this year.
What 2021 WRX problems does it help with?
1 recall is on federal record for the 2021 WRX, covering exterior lighting. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Subaru dealers.
Does it include 2021 WRX wiring diagrams?
Yes — the complete wiring diagrams for the 2021 build, alongside repair procedures, specifications and diagnostics.
Is it a subscription?
No. $49.99 once and the manual is yours. It is a digital manual — nothing ships; access details arrive by email after checkout and it works on any device.
RelatedOther WRX years and 2021 Subaru models
2024 WRX · 2023 WRX · 2022 WRX · 2020 WRX · 2019 WRX · 2018 WRX · 2017 WRX · 2016 WRX · 2015 WRX · all 13 years
2021 Subaru Ascent · 2021 Subaru BRZ · 2021 Subaru Crosstrek · 2021 Subaru Forester · 2021 Subaru Impreza · 2021 Subaru Legacy · 2021 Subaru Outback · 2021 Subaru WRX STI · 2021 Subaru XV · every 2021 model