Squeaking brakes are usually caused by the pad vibrating at a high frequency in the caliper, steel pad backing plate against the iron caliper. This can be fixed by cleaning any deposited pad material off the rotor (too thin to see, but it's there), cleaning with solvent and sandpaper or abrasive scrubber. The metal-to-metal parts of the pad & caliper can get a drop of suitable lube, and there are rubber damping products to apply to the back of the pad. Often stainless steel anti-squeal shims for the backs of the pads are part of the assembly.
So...ask for a warranty repair. At 13k, this should not be brake pads worn down to the the built-in squealers unless there is a defective brake part...or if you unknowingly drive with your other foot resting on the brake pedal.