2020 Chevrolet Tahoe Brakes Problems

I own a 2020 Tahoe, 160,000 miles. While driving, the vehicle experienced a sudden loss of brake assist due to a failure of the vacuum brake pump. The brake pedal became extremely hard, and the vehicle would not slow or stop as expected, requiring me to put vehicle in neutral and frantically find a way to the shoulder to force a stop (pulling the emergency brake). This created a dangerous condition and significantly increased stopping distance, posing a serious safety risk to myself, and others on the road. There was little to no warning prior to the failure. This issue appears to be consistent with known complaints involving vacuum pump failure and loss of brake assist in similar vehicles. A failure of the braking assist system is NOT a normal wear condition and presents a critical safety hazard. I am reporting this incident due to the safety risk associated with sudden brake assist failure and the potential for accidents or injury. Vehicle issue has been confirmed by an independent service center. There was a warning light that appeared at the same time the brake stopped working leaving me no time to plan or know ahead not to drive.

While driving toward intersection, light changed to red. Applied pressure to brake pedal and pedal became extremely difficult to press. Vehicle was not slowing as expected with pedal pressure becoming very hard to press to slow vehicle. Warning on dash "Brake Assist" and Chevrolet app displays "Antilock Braking System" and text that states Schedule service now. If my wife would have been driving, this would have caused an accident. This is extremely dangerous condition that must be addressed with a corrective action taken by the manufacturer.

Both front rotors are flaking off in large chunks only on the inside. 35,500 miles . Outside smooth as butter. I don't know if it's a factory issue with the rotors,factory Brembo calipers or both . I included pictures.

MY NEW 2020 TAHOE HAS AUTO/POWER PEDAL HEIGHT ADJUSTMENT. IT ALLOWS BOTH PEDALS IN UNISON TO BE LOWERED OR RAISED FOR COMFORT AND DEXTERITY OF USE. THE HEIGHT DISTANCE BETWEEN THE BRAKE AND GAS PEDAL IS EXTREME. THERE IS A INHERENT DANGER OF HITTING THE SIDE OF THE BRAKE PEDAL PRIOR TO GETTING ONES SHOE ONTO THE BRAKE PEDAL. WOMEN WEARING SANDALS OR OPEN FACE FOOTWEAR CAN POSSIBLY SNAG THEIR FOOTWEAR TO THE SIDE OF THE PEDAL PLATFORM. ANY HEAVY WORKING TYPE SHOE IS ALSO PRONE TO HITTING THE SIDE OF THE PEDAL FIRST. MY WIFE AND I BOTH NOTICED THIS DURING OUR SEPARATE TEST DRIVES. IN EACH CASE, THE TIMING OF ACTUALLY ENGAGING THE BRAKE PEDAL ENDANGERS THE DRIVERS ABILITY TO SLOW OR STOP HIS VEHICLE. ACCIDENTS WILL OCCUR. I ASKED THE SALESMAN IF THE PEDALS COULD BE SEPARATELY ADJUSTED, TO WHICH HE STATED IT WASN'T POSSIBLE.THE INABILITY TO ADJUST EITHER PEDALS HEIGHT INDEPENDENTLY FOR EACH DRIVERS DEXTERITY OF ENGAGEMENT IS IMPORTANT. WOULD BOTH AUTOMATIC POWERED SIDE VIEW MIRRORS BE EFFECTIVE IF THEY WERE SET TO BE ADJUSTED IN UNISON ONLY ? I'M NOT SURE WHEN AUTOMAKERS MADE THE DECISION TO NEGATE THE ABILITY TO ADJUST THE DISTANCE OF HEIGHT INDEPENDENTLY OF AT LEAST ONE OF THE PEDALS. THIS IS OUR FIRST VEHICLE PURCHASE SINCE OUR LAST IN 1985. IT APPEARS TO ME, THAT IT HAS BEEN AN UNAPPARENT OR UNNOTICED POSSIBLE REASON FOR ACCIDENTS. PLEASE LOOK INTO THIS MATTER. YOU MIGHT FIND MY OBSERVATION TO BE VERY LIKELY. *TR