1999 Silverado message center flashes security, then battery, then low coolant, then low fuel and continues to repeat. Twice it has failed to start- no fuel at fuel rail. Also, Speedometer at zero, gas gauge at zero, "drive" indicator doesn't light, oil pressure and battery charge is reading

Sensor in the fill tank is probably bad .
LOW COOLANT
The IPC illuminates the LOW COOLANT indicator in the message center when the IPC detects a low coolant level condition from the PCM. The IPC receives a class 2 message from the PCM indicating the coolant level.
Coolant Level Control (If Equipped)
The engine cooling system contains an engine coolant level switch to alert the driver in the event of a coolant loss. The powertrain control module (PCM) sends out a coolant loss signal over the coolant level switch signal circuit. When the engine coolant level switch reads a low coolant level in the fill tank, the switch opens. The message center receives its power from engine wiring harness junction block on the battery positive voltage circuit. Ground is provided by the ground circuits via the body wiring harness junction block and the engine wiring harness junction block. The cluster receives the class 2 message from the PCM indicating Low Coolant and displays the LOW COOLANT LEVEL message on the driver information center (DIC).

Is the fill tank full ?

Low coolant light came on--Holy ****! - 1999-2006 & 2007-2013 ...

www.gm-trucks.com/.../51843-low-coolant-light-came-on-holy-****/
Apr 22, 2006 - 13 posts - ‎10 authors I was driving down the freeway today and got a "low coolant" message. As you can ...Bob 2000 Ext cab Silverado 4x4 w/ 5.3. Back to top ... 2002 Silverado Battery light and low voltage on gauge ...
7 posts
Mar 19, 2013
Low coolant light - Ask the GM Technician - GM ...
14 posts
May 21, 2006
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your ECU is playing up, probably thinking that it is stolen (security light) needs to visit a dealers computer, ring your dealer he may be able to reset for you

The pass lock is beginning to fail.You can try reporogramming it following this procedure. If it still continues to happen the pass lock/ignition tumbler may need replaced.
PASSKEY LOCKOUT RESET ALL GM CARS 1999 AND UP
1) Put the key in the ignition and turn to the "ON" position. Leave it that way for 10 minutes. After 10 minutes turn the key and take it out. Repeat this process (2) more times (3 times, 30 minutes total) This should reset the PASSKEY system to recognize your key.

COULD BE ANTI THEFT SYSTEM, BAD IGNITION? I HAVE A CADI BUT GM HAS HAD ALOT OF PROBLEMS WITH ANTI THEFT SYSTEM THAT SHUTS DOWN FUEL IGNITION AND STARTER GOOGLE IT YOU WILL SEE LONG LIST WITH GM GOOD LUCK.

What is the fuel presure? on a vortech engine the presure needs to maintain 60-66 pounds. It is possible that the fuel filter is restricting the flow of gas or could also be a weak pump... just a another thing to check... hope it helps.

I had something similar happen to my 2006 and it was a short in the fuse box itself. It cost me about $500 in all from the dealer, but you may be able to just get a used one at a junk yard and back then I don't think you have to have the dealer reprogram everything. Good luck.

sounds like a bad earth some were have a look at battery terminals both ends even the one on the body work if thats ok look at engine earths as well, if all this fails have your battery tested it could have a dud sell in it or even the carging system could be playing up, then again it could just be a bad conection were it clips into the steedo head,,, any bad wiring could cause this

it is more than likely a short

I had the same problem, then fuel pump failed shortly after, the sender for the gauge and message center are built in to the pump I believe. Once the pump was replaced, all was well. From my inderstanding, GM had problems with the fuel pumps for a while, but they will not pay for it, and if you go to the dealer, expect to pay aruond $800