The Lexus LS requires regular service every 10,000 km or annually at an authorised service centre, using genuine engine oil and parts. As a luxury flagship sedan, repair parts for the Lexus LS are more expensive than those for ordinary Toyota models, but still reasonable compared to European rivals (such as the S-Class or 7 Series). Owners are advised to service their Lexus LS at authorised Lexus service centres to maintain a full service history, which will help resale value. Additionally, it is recommended to use the specified high-performance tyres to ensure optimal handling and braking performance.
Lexus LS 建議每 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。由於 Lexus LS 係豪華旗艦房車，維修零件費用會比普通 Toyota 車型高，但相比歐洲對手（如 S-Class 或 7 Series）仍然算係合理。建議車主透過 Lexus 官方授權服務中心進行保養，確保可以 keep 住原廠保養記錄，對日後易手價有幫助。另外，輪胎建議使用原廠指定尺寸嘅高性能輪胎，以確保操控同煞車性能。
