I looked up a TSB for the 2008 ISF, L-SB-0001-11. It's regarding the transmission fluid, does anybody know what it's means?

 

It is additional information about WS ATF fluid, and not related to any functionality issue of your vehicle.

Just general info.

World Standard Automatic Transmission Fluid
Important Information
• 100,000 Mile Maintenance Interval — Inspection only; ATF-WS does NOT require any flushing
or changing during the life of the vehicle.
• The use of Genuine Toyota ATF-WS is recommended.
• The use of additives or aftermarket fluids that are considered compatible or substitutes
may result in shift concerns and damage to the internal transmission components.
• ATF-WS is NOT compatible with T-IV or Dexron ATF.
• Containers storing Toyota ATF-WS should ALWAYS be sealed — If exposed to the atmosphere,
ATF-WS may absorb moisture and potentially cause shift concerns if used in operation.
• One time use only.
• When performing repairs on ATF-WS equipped transaxles, it is important to use only
new, clean ATF-WS when refilling the ATM.
• ATF-WS equipped ATMs may use the overflow type procedure — Any fluid drained from the
overflow plug should be discarded following proper local regulations and never reused.
Failure to do so could result in shift concerns and damage to the internal transmission
components

https://www.clublexus.com/forums/att...sb-0001-11.pdf.

Digger08

 

Thank you for the explanation!