2018 Hyundai Ioniq

The 2018 Hyundai Ioniq is a compact hybrid/electric car known for its fuel efficiency and affordability. The 2018 Ioniq was offered in three different powertrains: a hybrid, a plug-in hybrid, and a full electric. The hybrid model is equipped with a 1.6-liter GDI four-cylinder engine producing 104 horsepower and 109 lb-ft of torque, paired with a 43-hp electric motor for a combined system output of 139 hp, and a six-speed dual-clutch transmission (DCT). The plug-in hybrid model has the same 1.6-liter engine, but a larger 60-hp electric motor with a total combined power output of 156 hp. The electric model has an 88kW electric motor making 118 hp and 218 lb-ft of torque. Owners often praise the Ioniq for its fuel economy, comfortable ride, and user-friendly technology. However, some criticisms include relatively uninspired driving dynamics and some concerns about long-term battery life in the EV model.

Electric Motor

Electric (88kW Motor)

• Reduced Range/Charging Issues
  • Description/Symptoms: Some owners have reported a decrease in battery range over time, particularly in colder climates. Others have experienced issues with charging, including slow charging speeds or the inability to charge at all.
  • Solution: Recalibration of the battery management system (BMS) may improve range. Faulty charging components (onboard charger, charging port) may need replacement.
  • Estimated Cost to Fix: Charging components can cost $500 - $1500+ to replace, depending on the part.
  • Recalls: None Found
• Battery Pack Failure
  • Description/Symptoms: Complete failure of the battery pack, resulting in the vehicle being unable to drive. This is a less common but very serious issue.
  • Solution: Replacement of the entire battery pack.
  • Estimated Cost to Fix: $10,000+
  • Recalls: None Found

Suspension

• Rear Shock Absorbers Leaking
  • Description/Symptoms: Premature failure of the rear shock absorbers, leading to a bouncy or unstable ride, particularly over bumps.
  • Solution: Replacement of the rear shock absorbers.
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Electrical

• Infotainment System Freezing/Crashing
  • Description/Symptoms: The infotainment system may freeze, crash, or become unresponsive. This can affect navigation, audio, and climate control.
  • Solution: Software updates can often resolve these issues. In some cases, the entire infotainment unit may need to be replaced.
  • Estimated Cost to Fix: $100 - $500+, depending on the fix and if the unit needs replacement.
  • Recalls: None Found
• Check Engine Light Illuminated with various fault codes
  • Description/Symptoms: Check engine light comes on, but there are no obvious mechanical issues. Could be related to the EV system, but some owners have reported codes related to the engine, fuel, and emissions systems on the hybrid and plug-in hybrid.
  • Solution: Have a professional scan the car for fault codes, diagnose the issue, and perform the necessary repairs.
  • Estimated Cost to Fix: Varies depending on the issue
  • Recalls: None Found

Exterior

• Headlight Condensation
  • Description/Symptoms: Moisture buildup inside the headlight housings, causing reduced visibility and potential damage to the headlight components.
  • Solution: Replacement of the headlight assemblies. Some owners attempt to dry out the housings, but this is often a temporary fix.
  • Estimated Cost to Fix: $300 - $600+ per headlight
  • Recalls: None Found

Interior

• Driver’s Seat Discomfort
  • Description/Symptoms: Some drivers find the driver’s seat uncomfortable on longer trips, citing lack of adequate lumbar support.
  • Solution: Aftermarket seat cushions or lumbar support accessories can help alleviate discomfort.
  • Estimated Cost to Fix: $20 - $100+
  • Recalls: None Found

Summary

The 2018 Hyundai Ioniq is generally a reliable vehicle with excellent fuel efficiency. Common issues are more electrical and software related than mechanical. The severity of potential issues range from minor infotainment glitches to more serious battery issues in the electric model, the cost to fix can also vary widely based on severity. Owners should pay close attention to the car’s warranty and service history when considering a purchase and look for any signs of wear and tear.