My Chevrolet silverado ss abs light came on?

First you need to have EBCM - electronic brake control module check for DTC'S - diagnostic trouble code's . If the light is on there is a code stored . I think most part stores can do this and for free . After you find out what code is stored , looking up that code in service repair information for diagnostic trouble shooting chart would be next step . There are a few codes too.
DTC C0035 or C0040
DTC C0045 or C0050
DTC C0110
DTC C0131
DTC C0161
DTC C0186
DTC C0196
DTC C0201
DTC C0240
DTC C0241 or P0856
DTC C0244 or P1689
DTC C0245
DTC C0283
DTC C0287
DTC C0290 or C0292
DTC C0455
DTC C0550
DTC C0558

Find the code do the diagnostic's , fix the problem , wiring issue's , a sensor , bad module ,what ever it is . The light will go out then . Here is a sample of code discription .
• DTC C0035 Left Front Wheel Speed Sensor Circuit
• DTC C0040 Right Front Wheel Speed Sensor Circuit

Sounds like left front loose wheel bearing knocking ABS sensor out of range causing ABS light to come on and causing grind noise at same location. Grinding noise is probably rotor rubbing on calipar.

although 33k is low mileage it sounds like you have a bad wheel bearing hub assembly.

If it's a "whining" , "grinding" or "roaring" noise - stay away from it ! 149,000 is a lot of miles for any vehicle, especially a 4x4 that could've been off-road and abused a lot.

Why would you be using any vehicle, with two check lights on?

Those type of lights have been on vehicles for over 25 years

Surely you know, you have a possible system failure,at least with the ABS

Now there is no excuse for driving with a grinding noise.
That with the ABS Lamp on ,sounds like a bad wheel bearing.

you need to have the codes read to see what direction to go for repairs,since moisture affects it,you can have the codes read at Autozone for free.

could be a warn front hub bearing. this is real common . new hub should come with the abs
wheel speed sensor. jack up car and safely
support , rotate tires and listen for noise ,
also attempt to wigggle/ move wheels and
see if any play

Need to scan system for codes.Most likely cause is abs module or speed sensor.If you hear a constant noise from the driver side of vehicle it is most likely the abs module.

That Sounds a lot like you have a Gear Broken off inside the Transfer Case. Not a Cheap fix or Easy Either But, Necessary

Try disconnecting your battery for about 30 sec to reset the ABS computer. You probly have a trouble code stored in the ABS computer and the lights are letting you know there was a problem. If the light stays on after you reset computer then you will have to pull code to troubleshoot problem.

Joe. ASE Master Tech