Red triangle exclamation mark on 2011 lexus is250

Lexus IS250 repair manuals are available at the click of a mouse! Chilton's Lexus IS250 online manuals provide information for your car's diagnostics, do-it-yourself repairs, and general maintenance.
Chilton's Lexus IS250 repair manuals include diagrams, photos, and instructions you need to assist you in do-it-yourself IS250 repairs. ChiltonDIY online IS250 repair manuals cover automotive service and repairs, from diagnostic trouble codes and probable causes, electronic engine controls, and maintenance schedules, to brake and suspension issues, wiring diagrams and engine repairs, tune-up procedures, specifications, clutch and gearbox diagrams, and more.

The trunk switch must be combined with some of the other components because it is not listed on the diagrams. If the issue is a fuse, there should be something else that is not working as well.
Lexus ES350 2010 2012 fuse box diagram Auto Genius
The more common issue is the Trunk Valet Switch in the glove box.
How to Operate the Trunk Valet Switch Lexus of Pleasanton
Is250 lexus trunk won open

when was it serviced last ???

ON THE DASH AT THE SPEEDOMETER,THEIRS A PART COMING OUT,YOU TURN IT TILL YOU GET TO TIRE AND PUSH IN TO RESET.

It's just the annoying light because you are due for service soon. Lexus programs all of their cars to "tell you" when service is due. To turn it off, hold down the odometer reset button and press the start engine button WITHOUT your foot on the brake. Keep holding the odometer button for about 5 seconds until you see the mileage flash. Then it will go off.

Look in your owners manual

Can also find those symbols on the internet

I have on 07 is250 and the power windows and trunk release were not working. There is a trunk/valet button in the glove box that needed depressed in order to make them work again.

Low tire pressure in one of the five tires

Hi, The exclamation point in triangle blinking is the "Emergency Blinker" This blinker turns on all all of the turn signal lamps at all four corners of the car. Left and Right, Front and Back. The triangle represents the European symbol for roadside emergencies. In fact on European Mercedes and other cars there is a triangle shaped reflector you can put behind the car so that other drivers know you have an emergency. THAT TRIANGLE ON YOUR DASHBOARD IS A BUTTON. PUSH IT ONCE. THE BLINKING SHOULD STOP. If you have a roadside emergency, and are broken down by the side of the rode. Push the Red Triangle and your lights will blink on and off ouTside to say, in effect "help".
Hope this helps.
Best,
Mark

red triangle with ! is the vehicle stability control not the ebattery prolly a bad sensor