Hyundai Elantra guidesBattery and chargingHyundai Elantra Battery Replacement Cost: $199 to $464, Plus How to Tell if It's Really the AlternatorRepairPal puts an Elantra battery replacement at $424-$464 on 2022-2025 models and $199-$217 on 2014-2016. Here's how to tell a dead battery from a bad alternator, what Hyundai's warranty covers, and how to avoid buying a battery you didn't need.Engine misfiresHyundai Elantra Misfiring or Flashing Check Engine Light? Plug and Coil Costs, Plus the Engine Recalls to Check FirstA rough idle or flashing check engine light on an Elantra is usually plugs or a coil, but some 2014-2016 and 2019-2020 Elantras have engine campaigns and a 15-year/150,000-mile warranty extension. Here's how to tell which one you've got. Hyundai Elantra at a glance TypeSedanCurrent generation2021-presentSold new in the USYes