Manufacturer-recommended service intervals for the Service Reminder and open recall alerts for your 2024 Kia Ev9.
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Kia uses Hyundai Motor Group's powertrains, so service intervals mirror Hyundai's. Kia Promise covers the first 3 years / 36,000 miles of complimentary maintenance. Kia owners with the Theta II 2.0L/2.4L (Optima, Sorento, Sportage 2011-2019) should adhere strictly to oil intervals due to known oil-consumption issues in Kia TSBs.
POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT
Campaign #24V271000 · Apr 16, 2024
Issue: Kia America, Inc. (Kia) is recalling certain 2023 Niro EV and 2024 EV9 vehicles. The differential gear bolts in the gear drive unit may not be tightened properly, which can result in a loss of drive power or cause the differential to lock up.
Risk: A loss of drive power or differential lock up can increase the risk of a crash.
Fix: Dealers will replace the gear drive unit, free of charge. Owner notification letters were mailed May 17, 2024. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC308.
SEAT BELTS:FRONT:RETRACTOR
Campaign #24V338000 · May 14, 2024
Issue: Kia America, Inc. (Kia) is recalling certain 2024 EV9 vehicles. The front passenger seat belt retractor cover may not be secured properly, which can cause the front passenger seat belt automatic locking retractor (ALR) and emergency locking retractor (ELR) to not operate as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 208, "Occupant Crash Protection" and 209, "Seat Belt Assemblies."
Risk: A seat belt retractor that does not operate as intended increases the risk of injury in a crash.
Fix: Dealers will replace the front passenger seat belt assembly, free of charge. Owner notification letters were mailed June 5, 2024. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC312.
STRUCTURE:INTERIOR PANELS:CEILING
Campaign #24V400000 · Apr 6, 2024
Issue: Kia America, Inc. (Kia) is recalling certain 2024 EV9 vehicles. The headliner may not adequately protect passengers from impact in a crash. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 201, "Occupant Protection In Interior Impact."
Risk: A headliner with inadequate impact protection increases the risk of injury during a crash.
Fix: Dealers will replace the impact absorbing plates mounted on the headliner, free of charge. Owner notification letters were mailed July 30, 2024. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC317.
PARKING BRAKE:ELECTRICAL:CONTROL MODULE:SOFTWARE
Campaign #24V693000 · Sep 17, 2024
Issue: Kia America, Inc. (Kia) is recalling certain 2024 EV9 vehicles. A software error may cause the remote smart parking assist feature, which allows the operator to remotely move the vehicle, to miscalculate stopping distances.
Risk: A remote smart parking assist feature that miscalculates stopping distances may increase the risk of a crash.
Fix: Dealers will update the integrated electronic brake software, free of charge. Owner notification letters were mailed October 4, 2024. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC324.
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
Campaign #24V757000 · Oct 10, 2024
Issue: Kia America, Inc. (Kia) is recalling certain 2024-2025 EV9 vehicles. Due to a software error, the instrument panel screen may fail. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 101, "Controls and Displays."
Risk: An instrument panel screen that fails to display critical safety information, such as the speedometer or warning lights, can increase the risk of a crash.
Fix: The instrument cluster software will be updated by a dealer or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed October 25, 2024. Owners may contact Kia Customer Service at 1-800-333-4542. Kia's number for this recall is SC326.
SEATS:CRITICAL FASTENERS
Campaign #24V962000 · Dec 20, 2024
Issue: Kia America, Inc. (Kia) is recalling certain 2024-2025 EV9 vehicles. The second- and third-row seat mounting bolts may be missing.
Risk: Seats without mounting bolts may not properly restrain an occupant, increasing the risk of injury.
Fix: Dealers will inspect and install mounting bolts as necessary free of charge. Owner notification letters were mailed January 24, 2025. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC329.
ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
Campaign #26V431000 · Feb 7, 2026
Issue: Kia America, Inc. (Kia) is recalling certain 2022-2024 EV6 and 2024 EV9 vehicles. The high voltage battery cells may contain misaligned electrodes, which can lead to a fire while parked or driving.
Risk: A fire increases the risk of injury.
Fix: Owners are advised to park outside and away from structures and limit their charge to a maximum of 80% until the recall repair is complete. Dealers will replace the high voltage battery system assembly, free of charge. Owner notification letters are expected to be mailed August 7, 2026. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC375. Vehicle Identification Numbers (VINs) involved in this recall will become searchable on NHTSA.gov beginning July 17, 2026.
Critical for safety and preventing major damage
Severe service: every 3,750 miles. Normal: 7,500 miles. Theta II 2.0L/2.4L on Optima, Sorento, Sportage (2011-2019): full synthetic only, never extend.
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.
Rotate tires every 7,500 miles. Telluride and Sorento AWD owners benefit from rotation every 5,000 miles to prevent uneven wear.
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.
Inspect brake pads and rotors every 7,500 miles. Forte and Soul front pads typically last 40,000-55,000 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.
Replace DOT 3 brake fluid every 30,000 miles or 24 months. Required for ABS and ESC pump longevity.
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.
Keeps your vehicle running smoothly and efficiently
Replace engine air filter every 30,000 miles. Severe 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.
Severe service: every 30,000 miles. Normal: 60,000 miles. Use Kia SP-IV — same as Hyundai.
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.
Iridium-tipped plugs rated 105,000 miles on most Kia engines. 1.6T (Forte GT, Soul Turbo): 60,000 miles. 3.5L Lambda II V6 (Telluride, Sorento): 105,000 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.
Kia Long-Life Coolant (pink, same as Hyundai): first change at 60,000 miles, then every 30,000. Do not mix with green or orange coolant.
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.
Sportage AWD, Sorento AWD, Telluride AWD: replace transfer case fluid and rear diff fluid every 60,000 miles.
Estimated cost — typical U.S. ranges
Dealer
~$105–$140
Shop
~$75–$100
DIY
~$15–$40
AWD/4WD vehicles only. Easy drain-and-fill on most platforms.
Extends the life of your vehicle and improves comfort
Replace cabin air filter every 15,000 miles. Located behind the glove box on Optima, Forte, and Sportage; behind the dashboard panel on Telluride.
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.
What drivers and federal regulators have officially reported about the 2024 Kia Ev9.
NHTSA has 204 complaints on file for the 2024 Kia Ev9 (2024-02 → 2026-06). We haven't reviewed and grouped them yet for this specific vehicle — for now, the full list lives on NHTSA.
Top reported components: ELECTRICAL SYSTEM (102) · UNKNOWN OR OTHER (38) · FORWARD COLLISION AVOIDANCE (24)
Note: NHTSA also opened 1 defect investigation(s) on this vehicle that closed without action.
Issues on other model years
Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Jul 31, 2026. Investigation data refreshed Jul 31, 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 2024 Kia Ev9 reflects Kia'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.