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2004 Hyundai Elantra Recalls, Problems & Maintenance

The 2004 Hyundai Elantra has no open NHTSA recalls. Owners report 6 recurring issue clusters, led by “Acceleration while braking or without throttle input.” Hyundai's owner's manual splits service into Normal and Severe schedules. Most US drivers qualify as Severe due to short trips, extreme temperatures, or stop-and-go traffic. Hyundai Assurance covers the first 3 years / 36,000 miles of complimentary maintenance on new vehicles. The Theta II 2.0L and 2.4L engines (2011-2019) are subject to TSBs around oil consumption — strict adherence to oil intervals matters.

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No open recalls on file. NHTSA lists no unrepaired safety recalls for this year, make and model. A recall can be issued at any time, and a specific car can still have one open — check yours by VIN at nhtsa.gov/recalls.

Known issues & problems for this vehicle

What drivers and federal regulators have officially reported about the 2004 Hyundai Elantra.

Reported to NHTSA

Acceleration while braking or without throttle input

VEHICLE SPEED CONTROL

9 NHTSA complaints · 2004-09 → 2018-07

“MY VEHICLE REVS ON IT'S OWN. STARTING AND STOPPING THROUGH TOWN IS VERY DANGEROUS BECAUSE IT IS DIFFICULT TO STOP THE VEHICLE. AS I HOLD THE BRAKE DOWN THE CAR CONTINUES TO ACCELERATE AS IF MY FOOT IS ON THE ACCELERATOR. THE CAR REVS IN PARK, NEUTRAL, DRIVE, AND REVERSE”
— Owner report, NHTSA ODI #10346870
“DT: 2004 HYUNDAI ELANTRA, VEHICLE ACCELERATED WITHOUT THE GAS PEDAL BEING TOUCHED, CONSUMER FIRST TRIED THE BRAKES WHICH DID NOT STOP THE VEHICLE FROM ACCELERATING”
— Owner report, NHTSA ODI #10126410
“I WAS DRIVING WITH MY CRUISE CONTROL ON AND A CAR STOPPED IN FRONT OF ME. I HIT THE BRAKES AND MY CAR ACCELERATED. THIS IS THE THIRD TIME THIS HAS HAPPENED. FORTUNATELY, I WAS ABLE TO SLAM ON THE BRAKES AND THE CAR STOPPED”
— Owner report, NHTSA ODI #10367286

Read all complaints on NHTSA →

Seat belt retraction and latching failure

SEAT BELTS

7 NHTSA complaints · 2005-03 → 2012-12

“I OWN A 2004 HYUNDAI ELANTRA AND WHEN I TRIED TO PUT ON MY SEAT BELT ON THE DRIVERS SIDE WHICH IS SHOULDER AND WAIST, THE BELT WOULD NOT RETRACT BACK AND, THUS, IT DOES NOT FIT SECURELY AROUND MY SHOULDERS AND LAP”
— Owner report, NHTSA ODI #10178437
“CPSC#I1230437A. 2004 HYUNDAI ELANTRA. CONSUMER STATED DRIVER SIDE SEAT BELTS STOPPED RETRACTING AT 65,000 MILES. *LN”
— Owner report, NHTSA ODI #10455190
“TL* THE CONTACT OWNS A 2004 HYUNDAI ELANTRA. THE CONTACT STATED THAT THE REAR SEAT BELTS WERE CONTRACTED AND WOULD NOT RELEASE. THE CONTACT STATED THAT THE MIDDLE SEAT BELT WORKS BUT THE REAR DRIVER SIDE AND PASSENGER SIDES WERE INOPERABLE”
— Owner report, NHTSA ODI #10392885

Read all complaints on NHTSA →

Passenger air bag off indicator and occupant sensor

AIR BAGS

85 NHTSA complaints · 2004-02 → 2019-02

“I BOUGHT A NEW HYUNDAI ELENTRA IN JUNE 20TH, 2004. EVERY SINCE I GOT IT, THE PASSENGER AIR BAG SENSOR CONTROL SYSTEM HAS NOT WORKED. I AM A FULLY GROWN ADULT FEMALE WHO WEIGHS 128LBS”
— Owner report, NHTSA ODI #10088741
“REPEATED INTERMITTENT ILLUMINATION OF "PASSENGER AIRBAG OFF" BEGINNING WITHIN DAYS OF PURCHASE. FAILURES OCCUR WHEN ANYONE SITS IN PASSENGER SEAT. ADULTS WEIGHING 190, 170, AND 140 HAVE TURNED AIRBAGS OFF. POODLE WEIGHING 9 LBS TURNED AIRBAGS ON!”
— Owner report, NHTSA ODI #10098812
“PASSENGER SIDE AIRBAG OCCUPANT CLASSIFICATION SYSTEM DISABLES AIRBAG FOR ADULT PASSENGERS. ISSUE OCCURS REGULARLY OR INTERMITTENTLY WITH AT LEAST THREE ADULTS WEIGHING MORE THAN 130 LBS, TWO FEMALES AGED 23 AND 28 AND ONE 25-YEAR OLD MALE”
— Owner report, NHTSA ODI #10193086

Read all complaints on NHTSA →

Air bags not deploying in a crash

AIR BAGS

16 NHTSA complaints · 2004-04 → 2015-05

“DURING A CRASH TOTALING MY 2004 HYUNDAI ELANTRA NONE OF THE AIRBAGS DEPLOYED. *JB”
— Owner report, NHTSA ODI #10202234
“DT: CONSUMER'S VEHICLE WAS INVOLVED IN AL HEAD-ON COLLISION AT 35 MPH WHEN ANOTHER VEHICLE MADE AN ILLEGAL LEFT TURN. UPON IMPACT, NEITHER FRONT OR SIDE AIR BAGS DEPLOYED. CONSUMER'S VEHICLE WAS TOTALED. BOTH DRIVER AND PASSENGER SUSTAINED INJURIES. *AK *JB”
— Owner report, NHTSA ODI #10131884
“CAR SLID ON SNOW HIT TREE AT APPROXIMATELY 10 MPH. NEITHER FRONT AIR BAG DEPLOYED!!!! PASSENGER HIT AND SHATTERED WINDSHIELD. DRIVER HIT STEERING WHEEL. CAR TOTAL LOSS!!!!.....UPDATED 02-03-15 *BF”
— Owner report, NHTSA ODI #10678222

Read all complaints on NHTSA →

Air bag deployment without a crash

AIR BAGS

4 NHTSA complaints · 2004-09 → 2010-02

“TL*THE CONTACT OWNS A 2004 HYUNDAI ELANTRA. WHILE THE VEHICLE WAS DRIVING IN REVERSE, THE AIR BAGS DEPLOYED FOR NO REASON. THE CONTACT'S HUSBAND INJURED HIS HAND”
— Owner report, NHTSA ODI #10217889
“THE VEHICLE WAS PARKED IN MY APARTMENT'S PARKING LOT. MY WIFE AND I ENTERED THE VEHICLE. I STARTED THE ENGINE. WE BOTH BUCKLED OUR SEATBELTS AND I TOOK OFF THE PARKING BRAKE. AS I WAS REACHING FOR THE GEARSHIFT, THE DRIVER'S SIDE AIR BAG DEPLOYED WITHOUT WARNING.*AK”
— Owner report, NHTSA ODI #10093152
“THE DRIVER SIDE AIR BAG DEPLOYED. THE MANUFACTURE IS SENDING FORMS FOR THE CONSUMER TO SUBMIT. *NM THE CONSUMER WAS VEHICLE WAS BACKING OUT OF THE DRIVEWAY WHEN THE DRIVER'S SIDE AIR BAG DEPLOYED. THERE WERE NO PRIOR ACCIDENTS. *SC”
— Owner report, NHTSA ODI #10096961

Read all complaints on NHTSA →

Engine stalling or shutting off while driving

ENGINE AND ENGINE COOLING

8 NHTSA complaints · 2004-03 → 2011-02

“INTERMITTENTLY WHILE DRIVING AT ANY SPEED VEHICLE STALLED. ALSO, CONSUMER HAD DIFFICULTY STARTING THE VEHICLE. DEALER EXAMINED THE VEHICLE TEN TIMES AND STILL COULD NOT PIN POINT THE PROBLEM. *AK”
— Owner report, NHTSA ODI #10079431
“TL*THE CONTACT OWNS A 2004 HYUNDAI ELANTRA. WHILE DRIVING 55 MPH, THE VEHICLE SHUT COMPLETELY OFF AND WOULD NOT RESTART. THE CONTACT NOTICED FLUID AND DEBRIS ON THE GROUND NEAR THE VEHICLE. THE VEHICLE WAS TOWED TO HER RESIDENCE AND HAS NOT BEEN INSPECTED BY A MECHANIC”
— Owner report, NHTSA ODI #10192264
“TL* THE CONTACT OWNS A 2004 HYUNDAI ELANTRA. THE CONTACT WAS DRIVING APPROXIMATELY 10 MPH WHEN SHE ENGAGED THE ACCELERATOR AND THE VEHICLE STALLED FOLLOWED BY THE ILLUMINATION OF THE CHECK ENGINE WARNING LIGHT. THE VEHICLE WAS TOWED TO THE DEALER BUT WAS NOT REPAIRED”
— Owner report, NHTSA ODI #10381605

Read all complaints on NHTSA →

Issues on other model years

Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Sep 20, 2026. Investigation data refreshed Sep 20, 2026.

We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.

Raw data + downloads for this vehicle →

Essential maintenance

Critical for safety and preventing major damage

Engine Oil & Filter

Every 3,750 mi

Severe service: every 3,750 miles. Normal service: 7,500 miles. Theta II 2.0L/2.4L (Sonata, Santa Fe, Tucson 2011-2019): never extend — oil consumption issues are documented in Hyundai TSBs.

Estimated cost — typical U.S. ranges

Dealer

~$120–$160

Shop

~$85–$115

DIY

~$25–$55

Full synthetic costs more than conventional. 5-quart 0W-20 + filter is the typical bill.

Tire Rotation

Every 7,500 mi

Rotate tires every 7,500 miles. AWD Tucson and Santa Fe owners benefit from rotation at 5,000 miles.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Often free at the shop where you bought the tires — worth asking before paying.

Brake Inspection

Every 7,500 mi

Inspect brake pads, rotors, calipers, and parking brake every 7,500 miles. Elantra and Sonata front pads typically last 40,000-50,000 miles.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Most shops do this free as a courtesy with any service. Don't pay separately if you can avoid it.

Brake Fluid

Every 30,000 mi

Replace DOT 3 brake fluid every 30,000 miles or 24 months. Required to maintain ABS and ESC pump life.

Estimated cost — typical U.S. ranges

Dealer

~$180–$200

Shop

~$125–$140

DIY

~$10–$25

DOT 3 or 4 — match the cap. Vacuum bleeders make this a one-person DIY.

Important maintenance

Keeps your vehicle running smoothly and efficiently

Engine Air Filter

Every 30,000 mi

Replace engine air filter every 30,000 miles. Severe service or dusty conditions: 15,000 miles.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

5-minute job on most cars; the airbox lid usually has clips, no tools needed.

Automatic Transmission Fluid

Every 30,000 mi

Severe service: every 30,000 miles. Normal: 60,000 miles. Use Hyundai SP-IV or SPH-IV — substitutes can cause harsh shifting and torque converter damage.

Estimated cost — typical U.S. ranges

Dealer

~$330–$500

Shop

~$235–$355

DIY

~$60–$180

Some sealed transmissions have no dipstick — fill is precise and best left to a shop. Many drivers can still DIY drain-and-fill.

Spark Plugs

Every 105,000 mi

Iridium spark plugs are rated 105,000 miles on Theta II, Lambda II, and Smartstream engines. 1.6T (Veloster N, Kona N): 60,000 miles.

Estimated cost — typical U.S. ranges

Dealer

~$285–$390

Shop

~$200–$275

DIY

~$25–$100

Iridium plugs cost more but last 100k+ miles. V6/V8 access varies wildly — some are tough.

Long-Life Coolant

Every 30,000 mi

Hyundai Long-Life Coolant (pink): first change at 60,000 miles, then every 30,000. Do not substitute green or orange coolant — it damages the cylinder head gasket on GDI engines.

Estimated cost — typical U.S. ranges

Dealer

~$285–$330

Shop

~$200–$235

DIY

~$25–$60

Use the manufacturer-specified coolant — wrong color/chemistry can damage the cooling system.

Recommended maintenance

Extends the life of your vehicle and improves comfort

Cabin Air Filter

Every 15,000 mi

Replace cabin air filter every 15,000 miles. Located behind the glove box on most Hyundai models.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

Usually behind the glovebox. Shops charge labor for a 10-minute job — easy DIY win.

Drive Belt Inspection

Every 60,000 mi

Inspect serpentine belt and tensioner every 60,000 miles. Replace at 90,000 miles on most models.

Estimated cost — typical U.S. ranges

Dealer

~$195–$235

Shop

~$135–$165

DIY

~$20–$50

DIY-friendly if you can reach the tensioner. Inspect for cracks rather than swap on a strict mileage interval.

Fatal crash history & reported problems

Occupant deaths in fatal crashes (FARS)

157 crashes 1990–2024

How the 157 occupant deaths break down

124

driver deaths

33

passenger deaths

157

occupant deaths

Crash years covered: 1990–2024 This model year first appears in 2004 crashes. Older models have had more years on the road to appear in these crashes, so a higher count here does not by itself mean a vehicle is less safe.

FARS counts every occupant death in a fatal crash, whatever the cause — it does not mean the vehicle was at fault or defective. Counts are not adjusted for how many of each vehicle are on the road. How to read this number

FARS 2024 data is an annual report file. NHTSA revises these records when the final file is published, so this count can change.

Why we show driver deaths too

Every vehicle has exactly one driver seat, so driver deaths line up fairly when you compare one model to another. Occupant deaths include passengers, so a three row SUV can show a higher number than a two seat car simply because it carries more people.

Both figures are plain counts, not rates. A rate would need to know how many of each vehicle are on the road, and that registration data is not public, so we do not publish rates or scores of any kind.

IIHS publishes driver death rates using this same driver only idea, paired with a registered vehicle years denominator we do not have. Their rates and these counts answer different questions, so do not read either number here as a safety rating.

Owner-reported problem signals

Separate from the federal fatality data above: complaints owners filed with NHTSA about this year and model. These are reports of problems, unverified, and are counted here only as signals.

24

complaints mentioning a crash

2

complaints mentioning a fire

Reviewed known issues for this vehicle

Typical U.S. ranges. Actual quotes vary by shop, parts choice, and vehicle condition.

How we estimate: Dealer = OEM parts × 1.4 + labor × $165/hr. Shop = parts + labor × $115/hr. DIY = parts only.

This maintenance schedule for the 2004 Hyundai Elantra reflects Hyundai's published service intervals and the Service Reminder system. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.

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