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moderate Owners of the 2017 Hyundai Sonata have filed 18 NHTSA complaints about the lighting at roughly $250 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See lighting across all vehicles →
| Model year | lighting complaints |
|---|---|
| 2013 Sonata | 125 |
| 2014 Sonata | 70 |
| 2015 Sonata | 21 |
| 2016 Sonata | 24 |
| 2017 Sonata (this page) | 18 |
| 2018 Sonata | 18 |
| 2019 Sonata | 18 |
No new NHTSA lighting complaint has been filed on this vehicle in over 8 years — the issue may be aging out of the active population.
A turn signal that activates in the opposite direction of what was intended by the driver increases the risk of a crash.
The manufacturer has issued service bulletins covering lighting on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
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 the lamp assembly. Lamp assembly replacement is NOT necessary in most cases. This condition can be eliminated by turning on the lamps with the engine running for several minutes or during normal driving operation.
full bulletin at NHTSA ↗This bulletin provides information regarding condensation related to moisture accumulation in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. The TSB illustrates the various causes of condensation inside the lamp assembly. Lamp assembly replacement is NOT necessary in most cases. This condition can be eliminated by turning on the lamps with the engine running for several minutes, or during normal driving operation.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
Owners report multiple distinct lighting failures on the 2017 Sonata. The most consistent complaint centers on headlight inadequacy: low beams produce insufficient brightness for safe night driving, with visibility sometimes limited to 40 feet ahead even at low speeds. This problem shows up within the first few thousand miles.
Limited models have an additional design flaw—a tab or piece at the top of the headlight enclosure casts a shadow that creates a distracting dark line across the driver's field of view. Owners describe it as a sharp boundary or dark notches obstructing visibility. Hyundai dealerships have acknowledged it as a design issue affecting Limited trims only, and one owner reported that a replacement headlight unit exhibited the same flaw.
Separately, headlight bulbs fail repeatedly—owners report replacing them nearly monthly or every three months, sometimes with the socket melting. Brake light bulbs suffer the same problem, burning out constantly and running dangerously hot, with one owner replacing them 10 times in a year and expressing fire concerns.
A minority of owners report headlight and taillight flickering in automatic mode that stops when switched to manual. One owner noted excessive oil consumption alongside headlight failures, though that appears separate from the lighting issues.
Dealers generally claim no defect exists or offer minor adjustments that don't resolve the problem. Hyundai has issued no recalls despite multiple complaints.
Same Hyundai Sonata lighting reports on nearby years: 2014 · 2015 · 2016 · 2018 · 2019
A tab or piece at the top of the headlight enclosure casts a shadow on the road and windshield, creating a distracting line or dark area that impairs visibility. Owners report a sharp boundary or dark line across the field of view, particularly on Limited models.
When: Reported at various mileages; design-related and present from early ownership
Symptoms owners cite: Shadow or tab visible on road/windshield during night driving; Sharp horizontal line across field of view blocking upper portion of view; Dark line and notches obstructing driver's view; Distracting shadow that bounces with vehicle movement; Pattern appears primarily on Limited edition models
Repairs/costs cited: Hyundai dealership ordered replacement headlight units; replacement units exhibit the same flaw
Recalls/TSBs owners mention: Dealership acknowledged it as a design issue affecting Limited models only; no recall issued; dealer claimed 'no issue' and offered only minor headlight adjustment
Low beam headlights produce insufficient illumination for safe night driving. Owners report visibility restricted to 40 feet ahead and extreme difficulty seeing the road, even at low speeds.
When: Occurring early in vehicle lifespan; reported at 1,700 miles, 3,000 miles, 58,000 miles
Symptoms owners cite: Headlights very dim while driving at night; Poor visibility; cannot see road ahead properly; Visibility restricted to approximately 40 feet in front; Inadequate lighting even at slow speeds (35 mph or less)
Repairs/costs cited: Not repaired; dealership charged diagnostic fee and provided no remedy; independent mechanic stated only manufacturer could resolve
Recalls/TSBs owners mention: Manufacturer stated they were not aware of the failure (Case #105-09466); no corrective action provided
Low beam headlight bulbs fail repeatedly and require frequent replacement. Owners report replacing bulbs almost monthly and as frequently as every three months.
When: Recurring throughout ownership; bulbs switched in August requiring replacement shortly after; reported at 143,000 miles
Symptoms owners cite: Headlight bulbs constantly blowing; Driver side low beam only works with high beams on; Bulbs burn out almost every three months; Bulb failure without warning; Melted bulb socket in one case
Repairs/costs cited: Bulbs replaced multiple times; wiring checked with no issues found; possible future wiring replacement considered by owner
Recalls/TSBs owners mention: No manufacturer response documented; dealer repaired brake light defects but no headlight remedy
Brake light bulbs burn out continuously and become extremely hot. Owners report bulbs requiring replacement 10 or more times over short periods and concern about fire risk.
When: Recurring issue; reported at 143,000 miles with long history of failures
Symptoms owners cite: Brake lights fail to illuminate when brake pedal depressed; Bulbs burning out continuously; Bulbs get extremely hot; Multiple replacements needed (10+ times in one year); Fire hazard concern
Repairs/costs cited: Bulbs replaced repeatedly on both sides; no permanent fix applied
Recalls/TSBs owners mention: Dealer was made aware but did not repair; no manufacturer contact
Head and tail lamps flicker rapidly on and off when the light stalk is in automatic mode, occurring randomly whether stationary or moving, day or night. Flickering stops when lights are switched to manual on mode.
When: Occurring randomly throughout ownership
Symptoms owners cite: Headlights and taillights flicker rapidly on/off in auto mode; Flickering occurs randomly day and night; Flickering happens both stationary and while moving; Does not occur in manual on mode
Synthesized from 18 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
On the 2017 Hyundai sonata limited (not the base or sport models), the enclosure surrounding the light unit has a piece at the top that casts a shadow on the street that is distracting to the driver and impairs visibility. The shadow appears to look like a tab and casts a shadow on the left hand lane line that makes visibility hard and is a safety concern. We have been informed by the…
It's a documented issue but not catastrophic. 18 complaints have been filed. Repairs average $250 and most owners catch it before it causes a breakdown.
Based on the 18 complaints filed, lighting issues most often appear around 45,386 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
Independent shops typically charge around $250 for lighting repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Yes — 1 active recall(s) cover lighting issues on this vehicle. Recall fixes are always free regardless of mileage or warranty status. Use the VIN decoder at the top of the page to check if your specific vehicle is affected.