Lexus GX470 2004 - How to Check All the Service Reminder Indicators; Key Reminder Buzzer

GAUGES, METERS AND SERVICE REMINDER INDICATORS
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(r) Key Reminder Buzzer
This buzzer reminds you to remove the key when you open the
driver’s door with the ignition key in the “ACC” or “LOCK”
position.
How to check all the service reminder
indicators (except the low fuel level warning
light)
1. Apply the parking brake.
2. Open the door.
The following service reminder indicator should come on. It
goes off when you close the door completely.
3. Place the four-wheel drive control lever in “N” position and
the selector lever in “P” position and turn the ignition key to
“ACC”.
The following service reminder indicator should come on. It
goes off when you place the four-wheel drive control lever in
“H” or “L” position.