The service and repair manual for the 2021 Hyundai Sonata — 2.0L I4 and 2.5L I4 and 1.6L I4 and 2.5L I4 engines, 13 trims. Matched to this exact model year, so the specifications and sequences are the ones Hyundai published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 2021 |
|---|---|
| Engines | 2.0L I4 — 122 cu in, DOHC 2.5L I4 — 152 cu in, DOHC, turbocharged 1.6L I4 — 98 cu in, DOHC, turbocharged 2.5L I4 — 152 cu in, DOHC |
| Trims | Hybrid Blue Sedan 4-Door · N Line Sedan 4-Door · Ultimate Sedan 4-Door · SEL Plus Sedan 4-Door · Hybrid Ultimate Sedan 4-Door · SE Sedan 4-Door +7 |
| Federal record | 4 recalls · 163 complaints · 87 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2021 Sonata manual
03 / ContentsSections in the manual
- Quick Lookups 206
- General Information 1,548
- Accessories & Equipment 4,055
- Heating, Ventilation & A/C (HVAC) 404
- Body & Frame 592
- Maintenance 13
- Brakes 944
- Restraints 646
- Drivelines & Axles 23
- Steering 281
- Electrical 472
- Suspension 249
- Engine Mechanical 270
- Transmission 904
- Engine Performance 5,417
04 / Known issuesRecalls on federal record for the 2021 Sonata
- Visibility — windshield · 21V00M000A windshield that detaches from a vehicle during a crash can increase the risk of injury.
- Fuel System, Gasoline · 25V796000A melted fuel tank can leak, increasing the risk of a fire.
- Fuel System, Gasoline — delivery › hoses, lines/piping, and fittings · 21V524000A fuel leak increases the risk of a fire.
- Power Train — automatic transmission · 22V746000Loss of drive power increases the risk of a crash.
Owners have filed 163 complaints and Hyundai has issued 87 technical service bulletins for the 2021 Sonata. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2021 Sonata manual
Is this manual specific to the 2021 Sonata?
Yes. It is the OEM manual matched to the 2021 model year, covering the 2.0L I4 and 2.5L I4 and 1.6L I4 and 2.5L I4 across the Hybrid Blue Sedan 4-Door, N Line Sedan 4-Door, Ultimate Sedan 4-Door, SEL Plus Sedan 4-Door, Hybrid Ultimate Sedan 4-Door, SE Sedan 4-Door, Hybrid SEL Sedan 4-Door, Hybrid Limited Sedan 4-Door, Preferred Sedan 4-Door, SEL Sedan 4-Door, Sport Sedan 4-Door, Limited Sedan 4-Door, Luxury Sedan 4-Door trims. Specifications and procedure sequences are the ones Hyundai published for this year.
What 2021 Sonata problems does it help with?
4 recalls are on federal record for the 2021 Sonata, covering visibility, fuel system, gasoline, power train. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Hyundai dealers.
Does it include 2021 Sonata wiring diagrams?
Yes — the complete wiring diagrams for the 2021 build, alongside repair procedures, specifications and diagnostics.
Is it a subscription?
No. $55.99 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 Sonata years and 2021 Hyundai models
2024 Sonata · 2023 Sonata · 2022 Sonata · 2020 Sonata · 2019 Sonata · 2018 Sonata · 2017 Sonata · 2016 Sonata · 2015 Sonata · all 36 years
2021 Hyundai Accent · 2021 Hyundai Creta · 2021 Hyundai EX6 · 2021 Hyundai EX8 · 2021 Hyundai Elantra · 2021 Hyundai Grand i10 · 2021 Hyundai H200 · 2021 Hyundai H350 · 2021 Hyundai H500 · 2021 Hyundai Ioniq · 2021 Hyundai Kona · 2021 Hyundai Kona Electric · every 2021 model