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2017 Hyundai Sonata Plug-In Hybrid maintenance schedule

The 2017 Sonata Plug-In Hybrid is part of the LF generation (2016-2019), sold as a sedan. Below: its service intervals with the source behind each one, the fluids it takes, the problems owners report for this year, and the NHTSA recalls issued for it.

Service schedule

What the 2017 Sonata Plug-In Hybrid needs, and when

All 6 of these items come from Hyundai's own published schedule. Manufacturer rows link to Hyundai's own schedule, Independent rows to a service shop or parts retailer's published guide.

ServiceIntervalSource
Engine oil and filter7,500 mi / 1 yearManufacturer
Brake fluidInspect, replace as neededManufacturer
Engine coolant120,000 mi / 10 yearsManufacturer
Transmission fluid (6AT)

Specific drain/fill process requiring GDS module monitoring

No scheduled replacementManufacturer
Spark plugs97,500 miManufacturer
EV coolant loops120,000 mi / 10 yearsManufacturer

Intervals are for normal driving; towing, short trips, extreme heat or dust shorten them. Services we could not find an interval for are left off rather than guessed.

Fluids and engines

What goes in it

Transmission fluid
ATF

Powertrains in this generation

  • 2.0L 4-cyl plug-in hybrid, 6-speed automatic, FWD

Confirm the exact spec against the owner's manual or the label under the hood; capacities vary by engine and drivetrain.

Known problems

What 2017 Sonata Plug-In Hybrid owners run into

Problems reported for this model year, with the mileage they tend to show up at. Buying past a window is not automatically a pass - it just needs to be priced in.

High voltage battery fault

high severity

50,000-100,000 mi

System won't enter READY mode, failure to charge

Source: static.nhtsa.gov

Safety recalls

2 NHTSA recalls for the 2017 Hyundai Sonata Plug-In Hybrid

From NHTSA's recall database, matched by model and year. Recall repairs are free at Hyundai dealers, and a given car may already be fixed or fall outside a campaign, so check the VIN at nhtsa.gov/recalls before you buy.

Electrical system

NHTSA 21V749000

September 2021

Hyundai Motor America (Hyundai) is recalling certain 2015-2017 Sonata, 2016-2017 Sonata Hybrid, and Sonata Plug-In Hybrid vehicles. The Smart Junction Box (SJB) software logic may not properly interpret the signals received from the multifunction switch, which could cause the turn signal to activate in the opposite direction of what the driver intended.

Remedy: Dealers will update the SJB software, free of charge. Owner notification letters were mailed November 19, 2021. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 210.

Hybrid propulsion system

NHTSA 18V166000

March 2018

Hyundai Motor America (Hyundai) is recalling certain 2016-2018 Hyundai Sonata Plug-In Hybrid vehicles. These vehicles are equipped with a Voltage Protection Device (VPD), designed to protect the high voltage battery module, that may activate inadvertently.

Remedy: Hyundai will notify owners, and dealers will remove the VPD switch and install a new Battery Management System (BMS) that contains an Overvoltage Protection Device (OPD). The recall is expected to begin May 2018. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 175.

Running costs

What maintenance typically costs

A typical year of maintenance
$458

Typical US independent-shop estimates for this generation; they vary by region and condition.

Other Sonata Plug-In Hybrid model years

LF (2016-2019)

2016201720182019

Shopping new? The Hyundai Sonata Plug-In Hybrid guide covers the current model, with what it costs to keep for 1 to 15 years.

Sources

Researched 2026-09-22. Modeling, not mechanic advice - always confirm against your car's owner's manual and service records.

Running a Sonata Plug-In Hybrid for income?

Carlyle scores the exact listing on cost per remaining mile and projected Turo income, so you know what a 2017 Sonata Plug-In Hybrid earns before you buy it.

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