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Research · Midsize Cars · 2 NHTSA variants

1999 Hyundai SonataRecalls, problems, MPG & safety

NHTSA lists 4 safety recalls and 170 owner complaints for the 1999 Hyundai Sonata. Most complaints involve structure (71) and air bags (36). The EPA rates it 21–22 mpg combined.

Check a VINAdd to my garage
Combined MPG
21–22mpg
EPA · 4 versions
NHTSA overall
—
Not rated by NCAP
Safety recalls
4campaigns
Latest Apr 2009
Owner complaints
170
Top: structure
Fuel cost / yr
$2,850est.
EPA estimate, best version
01 —Recalls

Safety recalls

4 NHTSA campaigns · applies to some vehicles, check your VIN

Suspension

Free remedy

HYUNDAI IS RECALLING 188,282 MY 2001-2004 SONATA AND MY 2001-2004 XG300 AND XG350 VEHICLES ORIGINALLY SOLD IN OR CURRENTLY REGISTERED IN THE STATES OF CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WEST VIRGINIA, WISCONSIN, AND THE DISTRICT OF COLUMBIA. ROAD SALT APPLIED IN THESE JURISDICTIONS DURING THE WINTER MONTHS MAY RESULT IN PROGRESSIVE, INTERNAL CORROSION OF THE FRONT SUB-FRAME ON THE VEHICLES, AND MAY RESULT IN THINNING OR PERFORATION OF THE SUB-FRAME STEEL. THE CORROSION IS FREQUENTLY VISIBLE AND OFTEN DISCOVERED DURING INSPECTION OR ROUTINE MAINTENANCE, AND OWNERS MAY ALSO HEAR NOISES OR NOTICE TIRE MISALIGNMENT AND STEERING PULL. IF THESE SIGNALS ARE UNDETECTED OR UNHEEDED, THE CORROSION MAY PROGRESS AND THE FORWARD MOUNTING OF THE LOWER CONTROL ARM MAY DETACH FROM THE SUB-FRAME.

SuspensionReported Apr 16, 2009NHTSA 09V124000

Air bags: side

Free remedy

ON CERTAIN PASSENGER VEHICLES, AN INTERMITTENT CONDITION THAT LEADS TO THE SUPPLEMENTAL RESTRAINT SYSTEM (SRS) AIR BAG WARNING LIGHT ILLUMINATION COULD RESULT FROM MOTION OF THE SIDE IMPACT AIR BAG WIRING HARNESS AND SIDE IMPACT AIR BAG WIRING HARNESS CONNECTOR WHICH MOUNT TO THE ADJUSTABLE SEAT CUSHION ASSEMBLY. THIS CONDITION ONLY RELATES TO THE SIDE IMPACT AIR BAGS AND COULD PREVENT AIR BAG DEPLOYMENT DURING A CRASH WHERE SUCH DEPLOYMENT SHOULD OCCUR.

Air bagsReported Apr 9, 2002NHTSA 02V105000

Air bags

Free remedy

VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE SUPPLEMENTAL RESTRAINT SYSTEM (SRS) AIR BAG WARNING LIGHT COULD ILLUMINATE DUE TO MOTION OF THE SIDE IMPACT AIR BAG WIRING HARNESS AND SIDE IMPACT AIR BAG WIRING HARNESS CONNECTOR THAT MOUNT TO THE ADJUSTABLE SEAT CUSHION ASSEMBLY. THIS CONDITION ONLY RELATES TO THE DRIVER AND/OR PASSENGER SEAT-MOUNTED SIDE IMPACT AIR BAG(S).

Air bagsReported Nov 6, 2001NHTSA 01V347000
See all 4 recalls with remedies
Data from NHTSA Recalls API · synced Nov 10, 2026 · All recall detailsNHTSA vehicle page
02 —Complaints

Owner complaints by component

170 complaints filed with NHTSA · Aug 1999 – Jul 2015
  1. Structure71
  2. Air bags36
  3. Suspension28
  4. Engine and engine cooling27
  5. Power train17
  6. Electrical system11
  7. Steering8
  8. Service brakes, hydraulic6
  9. Tires6

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

By model year

Complaints for each Sonata model year we’ve synced.

View as table
Model yearNHTSA complaints
199624
199752
199850
1999170
2000278
2001219
2002326
2003199
2004202
2005165
20061,047
2007696
2008425
2009460
2010345
20113,380
20121,559
20131,917
2014751
20151,156
2016728
2017769
2018375
2019162
2020183
2021134
202296
202388
202448
202517
20263
Crashes reported
13
Fires reported
3
Injuries reported
25
Deaths reported
7
Data from NHTSA Complaints API · synced Nov 10, 2026 · Full problem breakdownNHTSA vehicle page
03 —Common problems

What owners report most

Verbatim excerpts from NHTSA complaints, by component

Structure

71 reports1 crash
“TL* THE CONTACT OWNS A 1999 HYUNDAI SONATA GLS. WHILE MAKING A LEFT TURN AT A TRAFFIC LIGHT, THE FRONT PASSENGER SIDE SUSPENSION SEPARATED FROM THE VEHICLE. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC. THE VEHICLE WAS INCLUDED IN NHTSA ACTION NUMBER: EA08016 (STRUCTURE, SUSPENSION). THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 150,000.”
Owner complaint to NHTSAFiled Jul 21, 2015Suspension, StructureODI 10735598

Air bags

36 reports11 crashes
“L WAS STOPPED ON TRAFFIC ON HIGH WAY ,AND SOME ONE, HIT ME ON THE BACK ,THE GUY WAS SO FAST PROBLEM MORE THAN 75 MPH ,THAN MY CAR FLOAT 20 FOOT ,AND HIT THE CAR ON MY FRONT AND MY AIR BAGS DID NOT DEPLOY OR OPEN , SO THE QUESTION IS HYUNDAI SONATA 1999 USUALLY HAVE THIS PROBLEM , ???? *TR”
Owner complaint to NHTSAFiled Jan 7, 2014Air bagsCrash reportedODI 10558957

Suspension

28 reports
“I WAS DRIVING HOME FROM WORK ON JAN 30TH, 2015 AND THE CAR STARTED PULLING TO THE RIGHT. THE NEXT DAY, SAT THE 31ST, I JACKED UP THE RIGHT FRONT OF THE CAR TO SEE WHY THE CAR STEERED TO THE RIGHT. I FOUND THE LOWER WHEEL ASSEMBLY ATTACHMENT TO THE FRAME HAD COME LOOSE. THAT WAS BECAUSE THE FRAME HAD THREE OF FOUR SIDES RUSTED THRU. THE CONDITION COULD HAVE CAUSED A MORE SEVERE ACCIDENT IF THE ATTACHMENT TO THE FRAME HAD PULLED COMPLETELY APART. I WILL CHECK WITH HYUNDAI TO SEE WHAT THEY CAN DO ABOUT IT. THANKS FOR LISTENING. [XXX] *TR”
Owner complaint to NHTSAFiled Feb 3, 2015Steering, SuspensionODI 10680767
All 1999 Sonata problemsSend a problem to a mechanic on findmechanic.ai
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026
04 —Key specs

Engines, transmissions & drive

4 versions rated by the EPA
EPA class
Midsize Cars
Engines
2.4L 4-cyl · 2.5L 6-cyl
Transmissions
Manual 5-spd · Automatic 4-spd
Drive
Front-Wheel Drive
Fuel
Regular Gasoline

Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.

Data from EPA fueleconomy.gov · synced Nov 10, 2026EPA listing
05 —Fuel economy

EPA fuel economy by version

City / highway / combined, annual fuel cost and CO₂
EPA
VersionCityHwyComb.Fuel / yrCO₂ g/mi
Sonata
Man 5-spd, 4 cyl, 2.4 L · Front-Wheel Drive
192722$2,850404
Sonata
Auto 4-spd, 4 cyl, 2.4 L · Front-Wheel Drive
182621$2,950423
Sonata
Auto 4-spd, 6 cyl, 2.5 L · Front-Wheel Drive
182621$2,950423
Sonata
Man 5-spd, 6 cyl, 2.5 L · Front-Wheel Drive
182621$2,950423
  • Sonata
    Man 5-spd, 4 cyl, 2.4 L
    19 city · 27 hwy · $2,850/yr
    22
    mpg comb.
  • Sonata
    Auto 4-spd, 4 cyl, 2.4 L
    18 city · 26 hwy · $2,950/yr
    21
    mpg comb.
  • Sonata
    Auto 4-spd, 6 cyl, 2.5 L
    18 city · 26 hwy · $2,950/yr
    21
    mpg comb.
  • Sonata
    Man 5-spd, 6 cyl, 2.5 L
    18 city · 26 hwy · $2,950/yr
    21
    mpg comb.
Estimate your fuel costCost of ownership
Data from EPA fueleconomy.gov · synced Nov 10, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
06 —Safety

NHTSA 5-Star Safety Ratings

New Car Assessment Program
NHTSA has not published 5-Star Safety Ratings for the 1999 Hyundai Sonata as of Nov 10, 2026.
Data from NHTSA NCAP Safety Ratings API · synced Nov 10, 2026
07 —Maintenance

Maintenance basics

General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
ItemMilesTimeNote
Engine oil & filter5,000–10,000 mi6–12 monthsFollow the oil-life monitor if fitted
Tire rotation5,000–7,500 miEvery oil changeCheck pressure monthly
Engine air filter15,000–30,000 mi1–2 yearsSooner in dusty areas
Cabin air filter15,000–25,000 mi1–2 years
Brake fluid—2–3 yearsAbsorbs moisture over time
Coolant60,000–100,000 mi5–10 yearsLong-life coolants last longer
Spark plugs60,000–100,000 mi—Iridium/platinum plugs at the long end
12V battery—3–5 yearsHeat shortens battery life
  • Engine oil & filter5,000–10,000 mi
    6–12 months
  • Tire rotation5,000–7,500 mi
    Every oil change
  • Engine air filter15,000–30,000 mi
    1–2 years
  • Cabin air filter15,000–25,000 mi
    1–2 years
  • Brake fluid—
    2–3 years
  • Coolant60,000–100,000 mi
    5–10 years
  • Spark plugs60,000–100,000 mi
    —
  • 12V battery—
    3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
09 —FAQ

1999 Sonata questions

How many recalls does the 1999 Hyundai Sonata have?

4 safety recalls as of Nov 10, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.

What are the most common 1999 Hyundai Sonata problems?

Owners filed 170 complaints with NHTSA. The most-cited components are structure (71), air bags (36), suspension (28). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.

What MPG does the 1999 Hyundai Sonata get?

The EPA rates the 1999 Hyundai Sonata at 21–22 mpg combined, depending on engine and drivetrain (4 versions rated).

Data from NHTSA & EPA · synced Nov 10, 2026