15401 - SERVICE UPDATE (RELEASE FROM STOP DELIVERY). THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO DRILL OUT THE REAR INBOARD MOUNTING NUTS ON THE DRIVER AND PASSENGER FRONT SEATS AND INSTALL SELF-TAPPING BOLTS ON CERTAIN 2015 MODEL YEAR BUICK ENCLAVE AND CHEVROLET TRAVERSE VEHICLES. THE THREAD QUALITY OF THESE NUTS MAY NOT BE WITHIN GMÂ’S DESIGN SPECIFICATIONS; GM IS INVESTIGATING WHETHER THIS CONDITION COULD INCREASE THE RISK OF SEAT MOVEMENT IN A SEVERE FRONTAL CRASH.
