Brakes keep wearing out - 2007 Buick Lucerne CXS Sedan

Rear brakes on Dakotas are notorious for having adjustment issues. What happens is when the rear brakes are replaced, most DIYers and repair shops do not bother to replace the hardware kit, self adjuster and adjuster lever. What happens is the star wheel on the self-adjuster wears out the ridge on the adjuster lever that is supposed to keep the rear brakes adjusted. Unless you replace these components, you will face a constant battle to keep the rear brakes adjusted and will invariably be wearing out front brakes and rotors much faster than the norm.

If the abs light is on, it could be one of the abs sensors. If not, you would be talking about the wear indicators. And keep in mind the regular brake warning light also involves the parking brake and the hydraulic brake fluid level.

Normally I would say check the brake hose, but that would only be for one wheel.
If the rear brakes are not releasing normally, either something is keeping pressure applied, or the calipers are not sliding back. If both inner and outer pads are wearing down equally on both wheels, I would look for a pressure problem. If only the outboard pads are wearing, the calipers are sticking in place.

some models have a pad wear sensor when the pad wears down it triggers a orange light but some are red

Could be brake fluid is low,there is a sensor to turn that light on when the fluid gets too low (meaning the brakes need checked for wear,The disc calipers fill up with fluid as the pads wear)
Also as a side note,,
Did you get the recall done for the cruise switch on the master cylinder? Supposed to be a fire hazzard.

Going bad ??? NOt sure what you mean by this, but I assume wearing quickly........i would suggest front caliper overhaul....repair/replace sticking slides as this can result in brakes dragging and have porr efficiency and excessive wear rate

When your brakes are applied, the piston which is in behind the inner pad, pushes the pad outward against the rotor first,then that in turn basically pulls the outer pad and assembly inward for the sandwiching affect, squeezing the 2 pads together on either side of the rotor. Although there will be a little difference because of that, other things can effect how much wear difference that will occur, such as poor lubrication of the caliper slide bolts etc, as well as perhaps a partially seized caliper, or even a defective brake hose at caliper, as well as worn bushings in caliper that allow too much play, causing caliper to shift too much. Checking and keeping all those moving parts lubricated properly, will minimize uneven wear.

Possibly your rear brakes not engaging? To my understanding that would put the entire load on the front brakes and cause them to wear out prematurely.

You can use your stock rotors with ceramic pads. If you feel that the pads wore down too quickly then they may have been a less than optimal type. Keeping disc brakes clean is key to making them last longer. When there is brake dust and naturally occurring rust built up in the calipers and slides, then they don't release immediately or completely when you let off the brake pedal and they may actually drag your pads.

this usually comes up when one of the brake pad sensor wires grounds out against the brake rotor due to the pads being low.