There are 3 stored owner reports matching the brakes leading-label group for the 2014 Chevrolet Sonic in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)BRAKE PEDAL FEELS TOO SOFT AND CAUSES THE CAR TO HAVE PROBLEMS WITH MAKING SMOOTH STOPS. I NOTICED THIS CHANGE IN OCTOBER 2016. THIS PROBLEM IS PARTICULARLY DANGEROUS WHEN YOU ARE REQUIRED TO MAKE SUDDEN STOPS AT INTERSECTIONS OR IN HEAVY TRAFFIC. THIS HAPPENS WHEN DRIVING ON CITY STREETS, NEIGHBORHOOD STREETS AND ON HIGHWAYS. I AM CONCERNED THAT THIS COULD RESULT IN ANOTHER VEHICLE FROM STRIKING MINE IN THE REAR OR A CHILD BEING HURT OR KILLED WHEN I DRIVE THROUGH MY NEIGHBORHOOD STREETS. IT IS VERY UNPREDICTABLE. I TOOK IT TO MY CHEVROLET DEALER AND THEY SAID THEY WERE UNABLE TO DUPLICATE THE PROBLEM AT THAT TIME. I AM INCLUDING AN IMAGE OF THE DEALER'S SERVICE REPORT FROM 11/09/2016. THE PROBLEM STILL CONTINUES TO THIS DATE, 8/8/17. SINCE THE PROBLEM IS ONGOING, I CANNOT REPORT AN ACTUAL DATE, MILEAGE, OR DRIVING SPEED.
LIST OF POWER BRAKE BOOST UNDER SEVERAL CONDITIONS. 1. WHEN ENGINE IS WARM, AFTER SHIFT INTO REVERSE, LIST OF POWER BRAKE BOOST 2. WHILE ACCELERATOR WAS DEPRESSED, AND AT THE SAME TIME APPLIED BRAKE, RESULTS IN LOST OF VACUUM BOOST IN BOTH CONDITIONS, CAR IS IN MOTION AND UNABLE TO STOP WITHOUT THE USE OF EXTRA BRAKE EFFORT, COMPRISING STOPPING DISTANCE AND SAFETY, ON SEVERAL OCCASIONS VEHICLE WILL NOT STOP WHEN APPLYING BRAKE, DUE TO EXTREME STIFFNESS OF THE PEDAL
FIRST NOTICED THIS HAPPENING ABOUT 1 MONTH AFTER THE PURCHASE OF THIS CAR. WHEN STOPPED AT A STOP SIGN OR RED LIGHT, WITH MY FOOT ON THE BRAKE THE CAR FEELS LIKE IT WANTS TO LUNGE FORWARD OR TAKE OFF. OR, WHEN GOING FROM MY FOOT ON THE BRAKE TO THE GAS THE CAR WANTS TO LUNGE FORWARD ONCE I PRESS ON THE GAS JUST A LITTLE BIT. *TR
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.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.