Hyundai Tucson, NX4 (USA)

Transfer case fluid capacity & service interval

Hyundai Tucson, NX4 (USA) transfer case fluid capacity ranges from 0,36 to 0,68 liters. Service intervals include checking at 32000 miles or 48 months and changing at 72000 miles. The data covers 8 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
Tucson 1.6 T-GDI Hybrid AWD (2021- )
  • Use: Normal
  • Capacity 0,63-0,68 liter
  • Check 32000 miles/ 48 months
Tucson 1.6 T-GDI Hybrid AWD (2021- )
  • Use: Severe
  • Capacity 0,63-0,68 liter
  • Change 72000 miles
  • Tucson 1.6 T-GDI Hybrid AWD (2021- )
  • Coupling
  • Use: Normal
  • Capacity 0,36-0,4 liter
Tucson 1.6 T-GDI Plug-in Hybrid AWD (2021- )
  • Use: Normal
  • Capacity 0,63-0,68 liter
  • Check 32000 miles/ 48 months
Tucson 1.6 T-GDI Plug-in Hybrid AWD (2021- )
  • Use: Severe
  • Capacity 0,63-0,68 liter
  • Change 72000 miles
  • Tucson 1.6 T-GDI Plug-in Hybrid AWD (2021- )
  • Coupling
  • Use: Normal
  • Capacity 0,36-0,4 liter
Tucson 2.5 GDI AWD (2021- )
  • Use: Severe
  • Capacity 0,65 liter
  • Change 72000 miles
  • Tucson 2.5 GDI AWD (2021- )
  • Coupling
  • Use: Normal
  • Capacity 0,39 liter

Additional Notes

  • The Hyundai Tucson NX4 (USA) transfer case fluid specifications cover three AWD powertrain configurations starting from 2021: the 1.6 T-GDI Hybrid, the 1.6 T-GDI Plug-in Hybrid, and the 2.5 GDI.
  • Both the 1.6 T-GDI Hybrid AWD and the 1.6 T-GDI Plug-in Hybrid AWD share an identical transfer box capacity range of 0.63-0.68 liter, indicating a common transfer case unit across the two hybrid variants.
  • The 2.5 GDI AWD transfer box holds a fixed capacity of 0.65 liter, which falls within the 0.63-0.68 liter range specified for the hybrid variants, though the non-hybrid engine lists a single value rather than a range.
  • A separate coupling component is listed alongside the transfer box for all three AWD configurations. The 1.6 T-GDI Hybrid and Plug-in Hybrid share a coupling capacity range of 0.36-0.4 liter, while the 2.5 GDI AWD coupling holds 0.39 liter — a fixed value that sits within the hybrid coupling range.
  • Under normal use conditions, the transfer box on both 1.6 T-GDI hybrid variants calls for a fluid check at 32,000 miles or 48 months, whichever comes first. A check interval rather than a change interval suggests fluid condition monitoring rather than scheduled replacement under standard driving conditions.
  • Under severe use conditions, all three AWD configurations specify a transfer box fluid change at 72,000 miles. Severe use typically involves more demanding operating conditions such as frequent towing, off-road driving, or extreme temperatures, which accelerate fluid degradation.
  • No normal-use service interval is listed for the 2.5 GDI AWD transfer box, whereas both hybrid variants carry an explicit normal-use check schedule. The 2.5 GDI AWD transfer box data is limited to the severe-use change interval and the coupling capacity.
  • The coupling capacity entries for all three configurations carry only a normal-use designation with no associated service interval, meaning only a fill volume is specified for the coupling component rather than a maintenance schedule.

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