2020 Hyundai Sonata Service and Repair Manual
2020 Hyundai Sonata 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.
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Hyundai Motor America (Hyundai) is recalling certain 2020 Sonata and Sonata Hybrid, and 2019 Genesis G70 vehicles. The trunk latch may become damaged, preventing the opening of the trunk from the ins
A person inside the trunk compartment may become trapped, increasing their risk of injury.
Dealers will inspect the trunk latch and replace the trunk latch base, as necessary, free of charge.
Hyundai Motor America (Hyundai) is recalling certain 2020 Sonata vehicles produced between October 22, 2019 and February 13, 2020. The tire pressure label inside the driver's door and the owner's man
The incorrect tire information may mislead the vehicle owner to install the wrong tire size, potenti
Hyundai will notify owners, and dealers will install new label stickers over the tire pressure label
Hyundai Motor America (Hyundai) is recalling certain 2020-2023 Sonata vehicles. A damaged check valve can allow air to enter the fuel tank, causing it to expand and contact hot exhaust components, mel
A melted fuel tank can leak, increasing the risk of a fire.
Dealers will inspect and replace the check valve. The fuel tank assembly will be inspected for damag
Hyundai Motor America (Hyundai) is recalling certain 2020 Nexo and Sonata vehicles. The Remote Smart Parking Assist (RSPA) software may fail to prevent vehicle movement upon detection of an RSPA syst
Unintended vehicle movement increases the risk of a crash.
Hyundai will notify owners, and dealers will reprogram the RSPA software, free of charge. The recal
The National Highway Traffic Safety Administration (NHTSA) has identified the presence of substandard and dangerous drivers-side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN). These infla
The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding dangerous, counterfeit driverside airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN),
Some 2019MY and newer vehicles equipped with a front view camera may illuminate certain warning lights and trigger DTC C272246 fault code for the front camera. In the following cases, the front camera auto-calibration range may be exceeded
Some Sonata (DN8, DN8A) vehicles may have DTCs P218100, P2181F0, and/or P2181F1 (Cooling System Performance) set in the Engine Control Module, resulting in an illuminated Check Engine warning lamp. Follow the procedure in this TSB to replac
This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. This TSB illustrates the various causes of condensation inside th
This bulletin provides information related to the changes introduced in the 2025 1st Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system as described in this TSB.
This bulletin provides information related to the changes introduced in the 2024 2nd Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system. Refer to the 2024 2nd Navigation Map and
Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizons communication network. Follow the procedure in this TSB to reesta
Showing the 8 most recent of 99 technical service bulletins on file with NHTSA.
I was driving Home from work and I fell a sleep behind the wheel and Hit a park car. The police report states that my impact speed was 50mph. My insurance company is very concerned that my Air Bags or
I was driving Home from work and I fell a sleep behind the wheel and Hit a park car. The police report states that my impact speed was 50mph. My insurance company is very concerned that my Air Bags or
PUSHED THE PARK BUTTON, SHOWED P ON THE DASH INDICATOR, DOORS THEN UNLOCKED. WHEN EXITED VEHICLE IT BEGAN ROLLING BACKWARD, PARK HAD NOT ENGAGED SLIGHT HILL ONLY. THIS HAS HAPPENED REPEATEDLY. PUSHED
My vehicle was at a manufacturerâauthorized dealership for a federally mandated recall repair. While the vehicle was in the dealershipâs exclusive care, custody, and control, it was struck by a th
My vehicle was at a manufacturerâauthorized dealership for a federally mandated recall repair. While the vehicle was in the dealershipâs exclusive care, custody, and control, it was struck by a th
Showing the 5 most serious of 243 complaints filed with NHTSA.
Need a manual for a different year? Browse every Hyundai Sonata we cover.
2024
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2018
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2016
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2015
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2014
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2013
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