What does the yellow light that looks like an engine block represent when it comes on?

http://dashboardsymbols.com/the-symbols/

the CHeck engine, light.
scan it.

Amber is the color. When this light is on, it usually represents that a sensor or actuator that works with the emissions has failed. If the engine light should blink when driving, vehicle should not be driven due to severe damage to your catalyst system. You would need to take your car in and have a knowledgable technician to plug a scanner to your vehicle and retrieve the code that the computer has stored and have the technician explain to you why the light is on. There is usually a one hour charge for the diagnostic fee to retrieve the code but all shops may vary in price. Hope this helps.

I would prefer if you forwarded a clear picture of these lights or symbols. The only green light I can think of is the one in the top center. That green light shows that your gear selector is in Park and moves as you select a different gear position. I think the yellow and Red light that you speak of is within the top area of the RPM gauge. The Red light should have an "!" symbol and is indicating a warning. The alarm is a back up to also alert you of an issue. This could represent your tires or engine. You should send it in for diagnostics asap. The Yellow Light I am not sure of. I need to know what it looks like. If it looks like a car with wavy lines. This light represents your traction control. If your car contains the owners manual it is a great idea to familiarize yourself with it. There is a lot of good information inside.

Sounds to me like it's a variation of the 'service engine soon' light found on GM vehicles. Check for codes.

That is your Check Engine Light. There is a trouble code detected by the car's computer. Have the codes read to find out what the problem is.

The engine shaped dash warning icon/symbol represents the "Check Engine Light", CEL for short.
It could be because of several things that can make the light come on. Perform a scan on the car and identify the error codes . Autozone can scan the codes for free.

Check engine light - take to have checked what is wrong.

You have blown a head gasket. Stop driving car take to shop take lots of money with you. sorry

check engine indicator,go autozone let check for free..

the yellow light is the check engine light, the best thing you can do is find someone who has a hand held code reader and let him come to your house. it will pull the code on the engine and tell you exactly whats wrong.