There are 7 owner-reported brakes complaints for the 2016 Ford Mustangin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The brake sensor position pad sensor deteriorated. Causing the system to read that the brakes were being applied. This makes the Brake lights staying on even when the key is turned off. This is safety since with the lights always being it there is no way for others to know when you are actually stopping. And it also makes the car be able to be started by accident. Even with no key fob. It also causes the lights being on and the ignition to be ready start to drain the battery. Ford used inferior material for the stop pad. It is a hard plastic piece instead o being either metal or rubber. There is a lot of info on mustang form sights about this happening around the 8 year mark.
Broken break pedal stop, causing break lights to stay on, other malfunctions as the car thinks the breaks are pressed when they aren't.
A small disk from the break assembly broke and puts my car in limp mode. No lights came on and stopped my car from accelerating after 40 mph. The car has not been inspected by anyone other than me.
WHILE DRIVING ON A RESIDENTIAL STREET AT A LOW RATE OF SPEED I ATTEMPTED TO STOP AT A STOP SIGN. THE BRAKE PEDAL WENT COMPLETELY TO THE FLOOR. THE VEHICLE DID NOT STOP. MANY LIGHTS AND WARNINGS LIT UP LETTING ME KNOW I HAD NO BRAKE FLUID. I STOPPED THE VEHICLE USING THE EMERGENCY BRAKE. AFTER HAVING IT TOWED TO FORD AND INSPECTED IT WAS DISCOVERED THAT THE PASSENGER SIDE BRAKE LINE HAD RUPTURED AND THE DRIVER SIDE BRAKE LINE HAD A 'BUBBLE' AND ALSO NEEDED REPLACEMENT.THIS WAS A POTENTIALLY VERY DANGEROUS SITUATION. IF I WERE ON THE HIGHWAY AT A HIGHER RATE OF SPEED THIS COULD HAVE BEEN FATAL. PLEASE INVESTIGATE THIS BRAKE FAILURE IN THE 2016 MUSTANG.
DUE TO A FAULTY DESIGN THE VACUUM PUMP THAT DRIVES THE BREAK BOOSTER IS CONNECTED TO THE CAM WITH A THREADED CAMSHAFT EXTENSION. THIS PART SHEARED OFF CAUSION THE VACUUMED PUMP TO LOOSE VACUUM AND THE BREAK BOOSTER TO UNEXPECTEDLY STOP FUNCTIONING. THE VEHICLE WAS IN MOTION ON THE INTERSTATE. THE FAILURE WAS NOTICED AFTER ATTEMPTING TO BREAK. THE RESIDUAL VACUUM PREVENTED THE BREAK LIGHT FROM ILLUMINATING TEMPORARILY. THE BREAKS BECAME DIFFICULT TO PRESS, ABS SPORADICALLY ENGAGED AND THE BREAKING SITUATION WAS UNCONTROLLED PLACING LIFE AND PROPERTY AT RISK.
I WAS DRIVING ON THE ROAD AND NOTICED MY PARKING BRAKE INDICATOR FLASHING. I DISCOVERED THAT IT WAS THE PARKING BRAKE HANDLE THAT WAS MOVING FREELY WAS BOUNCING AROUND ENOUGH NEAR THE PARKING BRAKE ENGAGEMENT POINT TO TURN ON THE LIGHT. I TOOK THE CAR IN FOR SERVICE. I WAS TOLD THAT IT WAS NORMAL AND THAT THEY TIGHTENED SOMETHING BUT IT DID NOT RESOLVE THE PROBLEM. THE CORRECT FIX INVOLVES REMOVING THE CENTER CONSOLE TO GET ACCESS TO THE ADJUSTMENT FOR THE BRAKE CABLES. THIS HAS NOT BEEN COMPLETED YET. THIS IS ONE OF FOUR PROBLEMS I HAVE HAD WITH THIS VEHICLE THAT HAVE NOT BEEN RESOLVED. THIS IS SOMEWHAT A SAFETY CONCERN. DEPENDING ON HOW LOOSE THIS IS, PARKING ON A SLOPE COULD FIND THE CAR IN A PREDICAMENT WHERE IT COULD GET LOOSE AND ROLL AWAY.
PARKING BRAKE ENGAGEMENT/ADJUSTMENT THE EMERGENCY BRAKE DOES NO ENGAGE WHEN THE HANDLE IS PULLED UP DUE TO A SLACK IN THE CABLE LINE OF ABOUT 2 INCHES. THIS CAUSES AN ISSUE DRIVING AS THE SENSOR IS ENGAGED AND CAN CAUSE CRUISE CONTROL TO TURN OFF. ALSO, IT BECOMES A RISK PARKING THE CAR ON A HILL SINCE YOU HAVE TO PULLED THE HANDLE ALL THE WAY UP FOR PROPER TENSION ON THE BRAKE LINE CABLE. THE OTHER ISSUE IS THIS CABLE CAN COME LOOSE RESULTING IN LOST OF THE EMERGENCY BRAKE FUNCTION. ALSO, IT CAN CAUSE VIBRATION AND RATTLING SINCE THE CABLE MOUNT AND BOLTING CAN MOVE AGAINST THE TRANSMISSION CASING. FORD SHOULD CREATE A TSB FOR THIS ISSUE AND NOTIFY DEALERS TO LOOK FOR IT DURING REGULAR MAINTENANCE SINCE MULTIPLE USERS HAVE HAD THIS ON INTERNET FORUMS. 1)HTTP://WWW.MUSTANG6G.COM/FORUMS/SHOWTHREAD.PHP?T=25204&HIGHLIGHT=BRAKE 2)HTTP://WWW.MUSTANG6G.COM/FORUMS/SHOWTHREAD.PHP?T=54010&HIGHLIGHT=PARKING+BRAKE
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on May 4, 2026