Engine warning light code po4ss - 2005 GMC Sierra

Looks like you have a few issues there.

1. The battery warning. This is indicative of a weak battery and if your battery is 3 years old or more I would replace it.

2. If you have a weak battery this can trigger other warning lights in the vehicle, typically the ABS warning but sometimes other warning lights as well depending on the electronic features in the car. If you replace the battery this should correct the battery warning and most likely the ABS warning if both of these warnings appeared at the same time.
Normally, once the ABS warning is displayed the anti lock braking system(ABS) will be shut down. Whilst your braking will be normal, if you brake too hard and lock up your wheels on a slippery road there is no ABS assist to prevent the brake lock up which you have when the system is working.

3. If the alternator on the engine is not generating sufficient power and thus not charging the battery at all, or very little, you will likely get a battery warning light. I don't know if your 1999 vehicle has a warning light to indicate a faulty alternator or not.

4. Check Engine Light.
You suggested the CE warning has been showing up for a few days and before the battery and ABS warnings popped up.
The CE warning can be caused by dozens of different engine issues.
The vehicle needs to be scanned with the appropriate scan tool to see what fault codes the onboard computer is generating because if you have a CE warning light there will be fault codes generated 99% of the time.

Once these fault codes have been pulled the mechanic can start to diagnose the cause of the problem or problems. Each engine fault code your car's computer is generating can be caused by different types of problems so it is important that they diagnose the issues correctly. Otherwise your Check Engine light will remain on as long as the causes are not identified and fixed.

Pull up the error codes and freeze frame data to interpret the check engine light illumination.

The first trial. Switch on ignition. The engine oil pressure warning light for thered light. Start and run the engine, warning lights, half a minute later re lit, butthe Yellow state. Repeated tests a few times are so. Turn off the engine. Pull out the dipstick check the amount of oil, the normal. Self diagnosis to connect to the GTl diagnostic instrument, choose 3 E46 chassis models, click on the"test" button, the scanning of the electronic control system of the whole car.After click two times right. Enter the fault code list interface, can be seen in the"KOM combination meter" project. The store has a fault code.then use the obd code reader to check out it.

Yes it may be the wires are shorting or its actually the problem with instrument cluster.
Also get the vehicle scanned for any error codes stored in computer this will confirm whether is short circuit issue or actual problem:------
I suggest you few help links with accurate solutions to refer/go through:----Click the link below:------

Battery and brake Warning lights on Dash
http://alltypesofpartsreplacing.blogspot.com/2012/10/battery-and-brake-warning-lights-on-dash.html
--------------2002 Ford Windstar: Brake Warning Light ON dash? http://schematicsdiagram.blogspot.in/2012/06/2002-ford-windstar-brake-warning-light.html
-------------ABS & Brake warning lights remains steady on dash? http://schematicsdiagram.blogspot.com/2011/12/abs-brake-warning-lights-remains-steady.html
-----------Chevrolet Tahoe Hood open warning on dash and alarm sounds? http://schematicsdiagram.blogspot.com/2011/12/chevrolet-tahoe-hood-open-warning-on.html
-----------2005 Chevy Impala: Service Vehicle Soon Warning Light? http://whoisbyme.blogspot.in/2012/06/2005-chevy-impala-service-vehicle-soon.html -------------- Malfunction Indicator Light ON http://whoisbyme.blogspot.in/2012/06/malfunction-indicator-light-on.html
-----------Car Runs Fine But Check Engine light is ON?

http://whatisbyme.blogspot.in/2012/05/car-runs-fine-but-check-engine-light-is.html

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Check engine light with codes P2195 and P2197?

http://howtobyme.blogspot.in/2012/01/check-engine-light-with-codes-p2195-and.html

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How to Read Codes from Check Engine Light? http://schematicsdiagram.blogspot.com/2011/12/how-to-read-codes-from-check-engine.html
-------------These will help.Thanks.

That's an engine warning light. The other is a tyre pressure warning light.
You will need an OBD2 scanner to read any engine trouble codes.

YOU CANT RESET ENGINE WARNING LIGHT UNTIL YOU CODE SCAN FIX THE PROBLEM.BECAUSE IF YOU HAVE A BAD SENSOR THE CHECK ENGINE LIGHT WILL STAY ON.ONCE YOU REPLACE THE BAD SENSOR YOU NEED A CODE SCANNER TO ERASE TURN OFF CHECK ENGINE LIGHT.

The red square with the wavy light is a low coolant warning light. The check engine light could be on for many reasons. I would check the coolant and add some if it's low. Then you can take your car to many different places to have the engine code read. Most AutoZones and Advanced Autos and other auto parts places will have a customer use code reader and will pull the code for you for free. I would address the coolant problem asap, low coolant can cause your engine to overheat and blow the engine. The engine light may also just be on because you have the low coolant warning. If that IS the reason for the engine light, after cycling (car gets to normal operating temp then completely cold) the car about 3-5 times the light will go off on it's own. Good Luck!

Which warning light? Check engine? Traction? Transmission? Can you give me a more detailed description? With a check engine light Autozone will check it for free and give you the code that caused the light to come on. With the code you can troubleshoot and repair.

You can disconnect your battery for 15 minutes or pull the fuse for an ECM or PCM fuse, but the best way is to visit any local repair shop. Most shops will have a universal Check Engine Light Code Reader that can quickly and safely reset check engine light trouble codes. It should take about 30 seconds.

Ask your local service center if they could reset the check engine light with a Check Engine Light Code Reader.

The easiest way to reset that light is to go to an AutoZone or Advance Auto..and they have the code readers..and they will see what code you have and they will remove the codes from you car computer and reset the light for free..or you can buy a code reader and do it yourself..i hope this helps....Keith