Hyundai IONIQ 5, NE EV (USA)

Additional Notes

• The Hyundai IONIQ 5 NE EV (USA) carries two physically distinct cooling circuits, each identified by a different cap type: a hot radiator emblem cap and a mechanic emblem cap with blue fluid. The two circuits hold meaningfully different fluid volumes and follow separate service intervals.
• The hot radiator emblem cap circuit holds 6.4–6.8 liters across all three configurations — the 58 kWh RWD, 77 kWh RWD, and 77 kWh AWD — with a normal-use change interval of 25,000 miles or 24 months.
• A first-change-only interval of 120,000 miles or 120 months applies to the hot radiator emblem cap circuit on all three configurations, with the same 6.4–6.8 liter capacity. A first-change-only interval means the fluid is replaced once at that mileage or time threshold rather than on a recurring schedule.
• The mechanic emblem cap circuit with blue fluid carries a noticeably larger volume. Without a heat pump, capacity is listed at 8.8–11.7 liters, while the heat pump-equipped variant requires 9.4–11.9 liters. The wider range in both figures reflects the variable fill levels typical of a service fill rather than a fixed overhaul volume.
• The heat pump configuration adds up to 0.6 liters at the lower end and up to 0.2 liters at the upper end compared to the non-heat pump variant, indicating the heat pump circuit draws from the same blue-fluid loop and increases total system volume.
• The mechanic emblem cap circuit follows a normal-use change interval of 35,000 miles or 36 months, which is longer than the 25,000-mile or 24-month interval assigned to the hot radiator emblem cap circuit under the same use condition.
• All three powertrain configurations — 58 kWh RWD, 77 kWh RWD, and 77 kWh AWD — share identical capacity figures and service intervals for both cooling circuits, meaning neither battery size nor drivetrain layout produces a difference in coolant service specifications.