2021 Jeep Gladiator brakes problems

While slowing to a stop and fully depressing only the brake with my right foot my vehicle rapidly accelerated into the back of another truck. It felt like the front brakes engaged, but the rear wheels continued to accelerate as the vehicle transmission worked to downshift. Serious safety issue-I am 100% confident that I was standing on the brake and not the accelerator. The road was dry with no gravel and I was gradually slowing to a stop when this occurred.

The contact owns a 2021 Jeep Gladiator. The contact stated while driving at various speeds, she noticed an abnormal clicking sound coming from the rear of the vehicle and the vehicle failed to accelerate as needed. The contact also stated that she had received several messages from Uconnect indicating a Power System failure. The vehicle was taken to the dealer where it was diagnosed that the failure was associated with the parking brake due to unknown components being detached and hanging underneath the vehicle.