See also:

What is not covered
These warranty obligations do not apply to failures or noncompliance caused by: ʉۢ The use of replacement parts not certified in accordance with aftermarket parts certification regulation ...

If you think something is wrong
If you notice any of the following symptoms, your vehicle probably needs adjustment or repair. Contact your Lexus dealer as soon as possible. - Visible symptoms l Fluid leaks under the vehicle ( ...

Do-it-yourself service precautions
If you perform maintenance yourself, be sure to follow the correct pro- cedures given in these sections. CAUTION The engine compartment contains many mechanisms and fluids that may move sudden ...