The Lexus NX should be serviced every 8,000 to 10,000 km or annually at an authorised service centre using genuine engine oil and parts. While maintenance costs for the Lexus NX are reasonable for a luxury vehicle, note that the hybrid battery pack (1.6 kWh) is a high-voltage component with higher replacement costs, though the manufacturer's battery warranty is extensive. Additionally, owners should be aware that the Lexus NX's e-Latch electronic door lock system requires professional servicing if any issues occur.
Lexus NX 建議每 8,000 至 10,000 公里或每年返廠進行一次定期保養，使用原廠機油同零件。雖然 Lexus NX 嘅維修費用喺豪華車入面算合理，但要注意混能系統嘅電池組（1.6 kWh）屬於高壓零件，更換費用較高，不過原廠電池保養期長。另外車主應留意 Lexus NX 嘅 e-Latch 電子門鎖屬電子控制系統，如遇到故障需由原廠技師檢修。
