well....because you lost air pressure
look in the drivers side where the door closes, it has a sticker with all the info you need.
The way you reset the low pressure light on a scion tc 05' is: Open the glove department and at the top left of the glove department there is a button and first make sure your car is on and in park with your foot on the brake and once you have done that then hold the button until you see the pressure light go away.
tire pressure uneven. consulting the manual is your friend!
Scion tC was created in 2004.
according to scion, tc stands for "touring coupe"
The 2010 Scion tC has 16 valves.
The 2012 Scion tC has 16 valves.
The 2006 Scion tC has 16 valves.
The 2011 Scion tC has 16 valves.
The 2014 Scion tC has 16 valves.
The 2005 Scion tC has 16 valves.