Sounds like Rotors,
Machine the existing ones, or Replace them and always install new pads on machined disks,
Always check the condition of the caliper piston boots,
What I have always done before depressing the pistons,
Just peel back the piston boot seal with a blunt tool/object, [CAREFULLY, NOT TO DAMAGE THE SEAL],
and pour a small amount of brake fluid into the piston boot, this helps when pressing the piston/s back in the caliper,
So you not forcing a "dry piston" past the piston caliper seal, and saves it from being damaged.
Then when the piston/s are depressed, hose the caliper down with water, so excess brake fluid is not flung around the car when you road test it.
Then check the brake fluid hasn't overflowed/leak out of the master cylinder on to the paint in the engine bay, again always hose it down.
On a side note to your issue -
If you install LED Tail/Brake lights, they also disables the Cruise control from operating.
The ECU/BMC replies, and measures a certain amount of current being drawn through the electrics/electronics,
Hence the reason it self tests
Where the LED Brake Lights draw so little current, it plays havoc with the ECU/BMC.
PS:
LED Globes seem like a good idea, IMHO, don't waste you time and money,
Been there and done that,
Yes you can put load resistors in to compensate for the LED Globes low current draw, but again, time and money, and some individual LED's fail and/or flash, so you back to square one again, replacing globes
I re-fitted incandescent [filament] globes after about 2 or 3 months.
