2018 Hyundai Ioniq Service and Repair Manual
Hyundai sold the 2018 Ioniq in three distinct powertrains — full hybrid, plug-in hybrid, and battery electric — and each one carries its own specifications and service sequences. This factory service and repair manual is keyed to the exact year, engine and trim of your car, so every figure in it is the one Hyundai published for that configuration, not an approximation borrowed from an adjacent year or a different Ioniq variant.
Engines covered
- 1.6L inline-four full hybrid (96 cu in) — DOHC, naturally aspirated, gasoline
- Battery-electric drive (EV)
- 1.6L inline-four plug-in hybrid (96 cu in) — DOHC, naturally aspirated, gasoline
Body styles covered
- 4-door hatchback
Trims covered
- Electric
- Electric Limited
- Electric Plus Limited
- Electric Plus Preferred
- Electric Plus SE
- Electric Plus Ultimate
- Electric SE
- GLS Premium
- Hybrid Blue
- Hybrid Limited
- Hybrid SE
- Hybrid SEL
- Limited
- Plug-In Hybrid
- Plug-In Hybrid Limited
Known issues on the 2018 Ioniq. No recalls are on federal record for the 2018 Ioniq, and no owner complaints or technical service bulletins are logged against the year either.
Whether you are isolating a fault in a high-voltage system or keeping the 1.6L four-cylinder on its scheduled maintenance, this manual holds you to the procedure and specification Hyundai wrote for your specific 2018 Ioniq.
