That is a "Check transmission light"
The yellow dashboard warning light you are seeing on your 2003 Dodge Neon is most likely the fuse warning light. You will most likely need to go to a mechanic to find out which fuse needs to be replaced.
Your coolant level is low.
Disconnect the battery for 15 mins
This indicates the front brake pads are worn.
That is the check engine light. It blinks under a severe misfire.
TPMS Tire Pressure warning
That is ECU fault warning light, take it for diagnostics to find the exact fault
A small yellow symbol lit up on my dashboard, is it the transmission light?
It definately means you have bulb out...this just happened to me and my turn signal/brake light is out.
It means pull out the owners manual, and hit yourself with it until you find the answer