Lexus 2003 LS Owner's Manual page 336

IN CASE OF AN EMERGENCY
The Lexus Link System is a subscription–based service. To
obtain any of the Lexus Link services you must have enrolled
with the Lexus Link Call Center and have an active
subscription. It is important to be aware that an active
subscription is required to receive safety and security services.
To learn more about your subscription status or how to renew
or extend your subscription, please push the "SERVICES"
button and speak to the Lexus Link Advisor, or you may dial toll
free 1–800–25 Lexus (Toll–Free) (1–800–255–3987) and
select the option for Lexus Link. If you are not enrolled, you will
hear the explanation about Lexus Link System. The actual
message is shown on "Audible voice prompts" on page 329.
If you push the "SERVICES" button again, the services
enrollment call will be announced. To cancel the enrollment
call, push the "SERVICES" button one more time.
NOTICE
This system is only operational in GPS (Global
Positioning System) and analog cellular coverage
areas. Services may not be available in an area where
the GPS and analog cellular phone signals cannot be
received.
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NOTICE
Observe the following instructions, or reception by GPS
antenna may be affected.
A Do not place luggage (especially metallic type) on the
package tray.
A Do not apply window tint (especially a conductive or
metallic tape) by yourself. Consult with your Lexus
dealer if you need to add window tint.