Hyundai Elantra (2021-2024 (7th Gen CN7)) Maintenance Schedule & Specs
Hyundai Elantra (2021-2024 (7th Gen CN7)) (2021-2024): engine oil 0W-20 every ~7,500 miles, tires 205/55R16 at 34 psi cold, battery group H6. Engine: 2.0L I4 (Smartstream G2.0). Full interval table below, with source and date.
Factory service intervals — Hyundai Elantra (2021-2024 (7th Gen CN7))
| Service | Interval |
|---|---|
| Oil & filter change | every ~7,500 miles |
| Spark plugs | every ~60,000 miles |
| Engine air filter | every ~30,000 miles |
| Engine coolant | every ~60,000 miles |
| Brake fluid | every ~30,000 miles |
Tires & battery
- Tire size: 205/55R16 at 34 psi cold — always confirm the driver-door placard.
- Battery: group H6, 600 CCA.
- Drivetrain: FWD · Fuel: gas
- EPA combined MPG: 35
Known problem areas of this generation
- CVT/IVT reliability — change fluid at 36k miles
- Engine oil consumption on early Smartstream
- Infotainment software instability
- Brake pad squeal from factory compound
See owner-reported problems by component for the failure-mileage data behind these patterns, or look up a check-engine code if a warning light is already on.
Severe service shortens every interval
Frequent short trips, towing, mountain driving, sustained idling or dusty conditions are "severe service" for every manufacturer: cut the oil interval roughly in half and inspect filters more often. The table above reflects normal service — your owner's manual has the severe-service column and is the authority for your vehicle.
Source: VinSpecs editorial reference for US-market vehicles, compiled from manufacturer service schedules (dataset us-vehicles-specs-and-maintenance-2026, generated 2026-11-14). Verify intervals against your owner's manual. Prices/exclusions: MSRP fields excluded from the source for quality reasons. This page is general information, not a substitute for factory service documentation.
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