There are 3 usual ways:
It is common for the check engine light to come on as result of gas cap not tightened after fill up. Check to see that it is tight, and drive for a while. The computer should reset after next fill up.
picture of engine
A person can reset the service engine light in a 1998 Tahoe by disconnecting the battery cables for 1 minute. After the battery cables are reconnected, the light should turn itself off.
Only way of knowing that is to get it scanned for codes. Most parts stores will do it for free.
Why? Just reset it.
Yes it can.
That requires an OBDII engine scanner.
Have vehicle scanned to determine the problem and have codes cleared
THE EASIEST WAY TO DO IT YOURSELF IS TO UNHOOK THE BATTERY. iF YOU DO HAVE A PROBLEM THOUGH, THE LIGHT WILL COME BACK ON.
The service engine light is the same thing as a check engine light.
Service Stability light come on
See sources and related links below for 1999 Chevrolet Tahoe light bulb part number list.
There are pages of things that can turn the light on. You need to have it checked for codes. See related questions below.