2015–2019 Hyundai Sonata Headlight and Bulb Sizes

Which Hyundai Sonata model years does this cover?

These headlight bulbs specifications apply to every Hyundai Sonata built from 2015 through 2019 — the LF (7th generation), mid-size sedan. Nothing in this specification changes between those model years. Pick your year for the engines it offered, what changed that year, and the problems recorded against it.

What changed during the 2015–2019 Hyundai Sonata

• 2015Generation launch on the LF platform; Eco 1.6T added
• 2016Hybrid and Plug-in Hybrid trims join the lineup with the Nu 2.0L GDI hybrid powertrain
• 2018Mid-cycle facelift arrives; a new mid-range SEL trim is added with Blue Link telematics, SiriusXM, HD Radio, and a power driver's seat standard (base SE and Eco lose those items as standard equipment)
• 2018–2019Mid-cycle facelift: new front/rear styling, revised interior with digital instrument cluster option, Eco 1.6T dropped from some markets late in the run
• 2019Final model year of the LF generation; facelifted trim lineup and styling carry over unchanged ahead of the all-new DN8 for 2020

What headlight bulb does a 2015–2019 Hyundai Sonata use?

H7 (halogen; projector or reflector depending on trim). Confirm in manual for the low beam and 9005 (HB3). Confirm in manual for the high beam. Trims with factory LED or HID projectors use a sealed assembly instead and are not bulb-serviceable.

Can you put LED bulbs in a 2015–2019 Hyundai Sonata?

Physically, yes, LED replacements exist in every common base. Whether they work well depends on the housing: a reflector housing designed around a halogen filament scatters LED output into oncoming traffic instead of down the road. Projector housings tolerate the swap far better. Some vehicles also flag the lower current draw as a bulb-out fault.