Brake Abs Warning Light problems of the 2013 Hyundai Elantra

In December 2017 & January 2018 on multiple occasions the cars abs light came on for no apparent reason and the car would not stop as if the brakes were not applied at all. A vibration was noticed like the brakes would in a skidding situation but that was not the case. The failure resulted in a couple few calls and finally an accident . It was brought to the Hyundai dealership where we were told there were no failures or codes in the computer to indicate a problem. A week later we received a recall notice from Hyundai - NHTSA campaign number 17v-769 (Hyundai campaign 170). This was the stopper pad recall and it did fix the problem. Looking at the invoice from the dealer the recall was done but we were never told it was related to the problem. The recall notice did not seem to properly state the serious risk of the problem. It did state it could increase the risk of a crash but also stated "a deteriorated stopper pad does not affect the performance of the vehicle's service brake system". This was found obviously to not be true. I believe the notice should have stated not to drive the car until the recall was completed. We were lucky not to be injured but the car did have over a thousand in damage. We called and emailed the manufacturer but never received a response.