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2021 Hyundai Elantra Maintenance Schedule

Manufacturer-recommended service intervals for the Service Reminder and open recall alerts for your 2021 Hyundai Elantra.

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Recalls6Full scheduleKnown issues7

How Hyundai schedules service: Service Reminder

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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6 Open Recalls

Source: NHTSA

SEAT BELTS:FRONT

Campaign #21V796000 · Oct 13, 2021

Issue: Hyundai Motor America (Hyundai) is recalling certain 2021 Elantra, Elantra HEV, Venue, Genesis GV80 and 2022 Genesis GV70 vehicles. In the event of a crash, the front driver-side and/or passenger-side seat belt pretensioner(s) may explode upon deployment.

Risk: An exploding seat belt pretensioner could project metal fragments into the vehicle, striking vehicle occupants and resulting in injury.

Fix: Dealers will replace the seat belt pretensioners, free of charge. Owner notification letters were mailed February 10, 2022. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's numbers for this recall are 211 and 009G. This recall is replaced by NHTSA recall numbers 22V-354 for Elantra and Elantra HEV vehicles, 22V-458 for Venue vehicles, and 23V-094 for Genesis vehicles. Elantra, Elantra HEV, Venue, and Genesis vehicles already repaired under this recall will need to have the new remedies completed.

VISIBILITY:WINDSHIELD

Campaign #21V00M000 · Dec 28, 2021

Issue: Hyundai Motor America (Hyundai) is recalling certain 2020-2021 Santa Fe, 2021 Sonata, and Elantra vehicles. During manufacturing, the windshield may not have been properly bonded to the vehicle, allowing it to detach in a crash.

Risk: A windshield that detaches from a vehicle during a crash can increase the risk of injury.

Fix: Dealers will remove and reinstall the front windshield panel, free of charge. Owner notification letters were mailed June 20, 2022. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 216.

SEATS:FRONT ASSEMBLY:RECLINER

Campaign #21V302000 · Apr 28, 2021

Issue: Hyundai Motor America (Hyundai) is recalling certain 2021 Elantra vehicles. The driver and front passenger seat back recliners may have been improperly welded.

Risk: An improperly welded seat back recliner could separate from the seat back frame during a crash, increasing the risk of injury.

Fix: Dealers will inspect and if necessary, replace the seat back frame assembly, free of charge. Owner notification letters were mailed on June 21, 2021. Owners may contact Hyundai customer service at 1-888-371-9460. Hyundai's number for this recall is 204.

SEAT BELTS:FRONT

Campaign #22V218000 · Jan 4, 2022

Issue: Hyundai Motor America (Hyundai) is recalling certain 2021-2022 Elantra and 2020 Accent vehicles. In the event of a crash, the front driver and passenger-side seat belt pretensioners may explode upon deployment.

Risk: Exploding seat belt pretensioners can project metal fragments into the vehicle, strike vehicle occupants, and result in injury.

Fix: Dealers will replace the seat belt pretensioners, free of charge. Interim notification letters, notifying owners of the safety risk, were mailed on May 31, 2022. A second notice will be sent once remedy parts become available. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 223. This recall is replaced by NHTSA recall number 22V-354. Vehicles already repaired under this recall will need to have the new remedy completed.

SEAT BELTS:FRONT

Campaign #22V354000 · May 19, 2022

Issue: Hyundai Motor America (Hyundai) is recalling certain 2020-2022 Accent, 2021-2022 Elantra, and 2021-2022 Elantra HEV vehicles. In the event of a crash, the front driver-side and/or passenger-side seat belt pretensioners may explode upon deployment.

Risk: An exploding seat belt pretensioner can project metal fragments into the vehicle, strike vehicle occupants, and result in injury.

Fix: Dealers will secure the seat belt pretensioner(s) with a cap, free of charge. Owner notification letters were mailed August 28, 2022. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 229. This recall expands and replaces NHTSA recall numbers 21V-796, 22V-069, 22V-218, and 22V-123 for Accent, Elantra, and Elantra HEV vehicles. All Accent, Elantra, and Elantra HEV vehicles already repaired under the previous recalls will need to have the new remedy completed.

BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

Campaign #24V879000 · Nov 21, 2024

Issue: Hyundai Motor America (Hyundai) is recalling certain 2021-2022 Santa Fe, Santa Fe HEV, Elantra, Elantra HEV and 2022 Elantra N and Santa Fe PHEV vehicles. Due to a damaged printed circuit board, the rearview camera image may fail to display. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

Risk: A rearview image that does not display reduces the driver's visibility and increases the risk of a crash.

Fix: Dealers will replace the rearview camera, free of charge. Owner notification letters were mailed January 14, 2025. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 271.

Recall data refreshed Jul 26, 2026.

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.

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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.

Known issues for this vehicle

What drivers and federal regulators have officially reported about the 2021 Hyundai Elantra.

Reported to NHTSA

Forward collision and smart cruise control warnings

FORWARD COLLISION AVOIDANCE

18 NHTSA complaints · 2022-09 → 2025-09

“vehicle only has 14k miles and is showing an error message for "check forward safety system" and "check smart cruise control system" after some research found this is a very common issue with multiple Elantra's where the front radar goes bad causing safety systems…”
— Owner report, NHTSA ODI #11562509
“While driving down the highway, a warning light stating the Forward Collision Warning system became inoperable, as well as the Adaptive Cruise Control System. Vehicle has no collisions, yet the dealer can't get the system to calibrate again.”
— Owner report, NHTSA ODI #11487108
“Several times, including yesterday, my forward collision avoidance engaged by braking suddenly and strongly and INAPPROPRIATELY, almost causing me to be rear-ended. I was nowhere near the car in front of me, and fortunately due to traffic was traveling below the speed limit…”
— Owner report, NHTSA ODI #11614945
“I was traveling in the rain and a CHECK FORWARD SAFETY SYSTEM warning appeared on my dashboard. There was nothing in front of me to set that off. I notified the dealership and they said it was an alignment code and must have gotten hit.( Which I doubt) so wasn't covered under…”
— Owner report, NHTSA ODI #11523885

Read all complaints on NHTSA →

Seat belt pretensioner recall and parts availability

SEAT BELTS

22 NHTSA complaints · 2022-05 → 2026-02

“NHTSA Recall Number 22V354000 has been active since May 18, 2022. The dealership says no dealers in the area have received the part to fix it. The recall itself carries serious safety concerns as the seatbelt will explode metal fragments in an accident…”
— Owner report, NHTSA ODI #11497445
“The contact owns a 2021 Hyundai Elantra. The contact received notification of NHTSA Campaign Number: 22V354000 (Seat Belt) however, the part to do the recall repair was not yet available. The local dealer was contacted…”
— Owner report, NHTSA ODI #11494140
“The contact owns a 2021 Hyundai Elantra. The contact received notification of NHTSA Campaign Number: 22V354000 (Seat Belts) however, the part to do the recall repair was not yet available. The local dealer was contacted…”
— Owner report, NHTSA ODI #11490270

Read all complaints on NHTSA →

Backup camera display failure

ELECTRICAL SYSTEM

9 NHTSA complaints · 2024-06 → 2025-03

“I am writing to file a formal complaint regarding a significant safety issue with my vehicle's backup camera system. The backup camera consistently malfunctions, displaying glitchy images with distorted lines across the screen. This issue renders the camera essentially unusable…”
— Owner report, NHTSA ODI #11621050
“Since last year around 55k miles, my backup camera has stoped working. The first incident happened as I was about to back out of my garage. I opened the garage door and put my car into reverse. As I looked down at the screen and began to back up, I realized the screen showed me…”
— Owner report, NHTSA ODI #11593541
“My back up camera fails to work consistently. This issue appears to only worsen with every use. Sometimes to screen will appear half on and half off. I have yet to receive any notice of a recall and would like to get this fixed if at all possible. Thank you!”
— Owner report, NHTSA ODI #11647073

Read all complaints on NHTSA →

Horn stops working

ELECTRICAL SYSTEM, UNKNOWN OR OTHER

6 NHTSA complaints · 2023-02 → 2025-04

“I have had to get the horn replaced on my ELANTRA six times the horn goes out and this can be a very big safety hazard as it has caused people to almost hit me because they didn't see me and my horn wasn't working to alert them this needs to be addressed as soon as possible…”
— Owner report, NHTSA ODI #11569887
“The horn stops working. It is not a fuse related issue. It is the horn itself. There are multiple reports of horn failure in this model, 2021 and 2022, on the internet and social media. There are people reporting that dealerships are also seeing a lot of cars with horn failure…”
— Owner report, NHTSA ODI #11548798
“The horn is a known issue to stop working on the Hyundai Elantra. I have had my car for 10 months, and the horn does not work. This is a very big safety concern and I have been told by mechanics and other Hyundai Elantra owners this is a constant issue.”
— Owner report, NHTSA ODI #11559151

Read all complaints on NHTSA →

Engine stalling and seizure

ENGINE

8 NHTSA complaints · 2022-02 → 2026-04

“On 1/27/2022 my daughter was driving home from school in her 2021 Hyundai Elantra SEL which was purchased new on 6/19/ 2021 when at 5600 miles on the odometer a message came on the instrument cluster which read put car in neutral and turn off engine, when it was safe to do so…”
— Owner report, NHTSA ODI #11453121
“At about 11 months old my car suddenly seized while attempting to enter the highway. This came with no type of warning from the vehicle until the car had stopped and then every light on the cluster came on. I was fortunate not to be rear ended…”
— Owner report, NHTSA ODI #11473491
“The contact owns a 2021 Hyundai Elantra. The contact stated that there was a knocking sound coming from the engine compartment while the vehicle was idling. The RPM fluctuated and the vehicle stalled while at a complete stop, and while shifted to park(P)…”
— Owner report, NHTSA ODI #11693336

Read all complaints on NHTSA →

DCT transmission shudder and hesitation

POWER TRAIN

5 NHTSA complaints · 2022-10 → 2026-03

“Ongoing issues whereby when accelerating the car jerks due to the transmission shuddering. There are many times when acceleration is very slow and the gears slowly shift. Brought this up to the dealership where I bought the car and they keep giving me the run around.”
— Owner report, NHTSA ODI #11491323
“Cars DCT transmission constantly slips into neutral and is very dangerous when getting onto main roads.. every time I accelerate my vehicle it sits in neutral and revs to high rpms and slows down until it abruptly changes gears very hard and it repeats this for every gear after…”
— Owner report, NHTSA ODI #11540929
“I owned a 2021 Hyundai Elantra N Line that experienced a recurring transmission issue. In warm weather conditions the transmission would intermittently slip and stutter, causing a jerky engagement when attempting to accelerate. In cold weather the vehicle operated normally…”
— Owner report, NHTSA ODI #11722451

Read all complaints on NHTSA →

Unintended acceleration with brake applied

VEHICLE SPEED CONTROL, SERVICE BRAKES

4 NHTSA complaints · 2022-09 → 2025-05

“My vehicle was slowing down and was halfway into a parking spot. Then, it suddenly accelerated, jumped over commercial parking blocks, and ended up stopping after hitting a wall. My brake was not working at that moment. I initially reported it to Hyundai USA…”
— Owner report, NHTSA ODI #11484435
“The contact owns a 2021 Hyundai Elantra. The contact stated that while driving at approximately 2 MPH, the brake pedal was depressed but the vehicle accelerated. The vehicle collided with a median and another vehicle. The air bags did not deploy…”
— Owner report, NHTSA ODI #11549764

Read all complaints on NHTSA →

Note: NHTSA also opened 2 defect investigation(s) on this vehicle that closed without action.

Issues on other model years

  • 2018 Hyundai Elantra →
  • 2019 Hyundai Elantra →
  • 2020 Hyundai Elantra →
  • 2022 Hyundai Elantra →
  • 2023 Hyundai Elantra →
  • 2024 Hyundai Elantra →

Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Jul 27, 2026. Investigation data refreshed Jul 27, 2026.

We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific 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 2021 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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