See also:

Reporting safety defects for U.S. owners
If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) in ad ...

Fuel information
Your vehicle must use only unleaded gasoline. Premium unleaded gasoline with an octane rating of 91 (Research Octane Number 96) or higher required for optimum engine performance. If 91 octane canno ...

Luxury/Comfort/Convenience
The Lexus IS models include a standard leather-trimmed interior with 10-way power front seats; some competitive vehicles make a leather interior optional. The numerous standard amenities in the IS ...