Warning Light On problems of the 2015 Chevrolet Suburban

Trailer brake assist malfunction during trip while driving with trailer connected on highway no problem after ending trip and disconnecting trailer brake assist warning light appeared and 1st glance brakes seemed fine but final pedal pressure is very stiff almost can't stop SUV.

The contact owns a 2015 Chevrolet Suburban. The contact stated that while coming to a stop in traffic, another vehicle crashed into the rear of the contact's vehicle. The contact stated that smoke came out of the side air bags, but they failed to deploy. The air bag warning light illuminated. The contact sustained head injuries that required medical attention. A police report was filed. The vehicle was taken to an auto repair center. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 36,000.