There are 2 stored owner reports matching the speed control & cruise leading-label group for the 2015 Mercedes-Benz GL-Class 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 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ GL350W. WHILE DRIVING 70 MPH, THE CONTACT'S HUSBAND ENGAGED THE CRUISE CONTROL. WHEN THE DRIVER TAPPED THE BRAKE PEDAL TO DEACTIVATE THE CRUISE CONTROL, THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD AND THE VEHICLE ACCELERATED. THE SPEEDOMETER WENT TO ZERO. THE CONTACT STATED THAT THEY WERE SAFELY ABLE TO PULL OVER ONTO THE SHOULDER. WHEN THE VEHICLE WAS TURNED OFF AND RESTARTED, IT RESUMED NORMAL OPERATION AND THE CONTACT'S HUSBAND WAS ABLE TO DRIVE OFF SLOWLY. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO COGEN MERCEDES-BENZ FT. PIERCE (4500 S US-1, FORT PIERCE, FL 34982, (772) 617-0819) TO BE DIAGNOSED, BUT NO FAILURE COULD BE FOUND. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 24,300.
TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ GL350. WHILE DRIVING LESS THAN 5 MPH, THE VEHICLE SUDDENLY ACCELERATED AT A HIGH RATE OF SPEED. THE CONTACT APPLIED FORCE TO THE BRAKE PEDAL, BUT THE VEHICLE FAILED TO SLOW DOWN AND CRASHED INTO A PALM TREE. THERE WERE NO INJURIES AND A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS TOWED TO A COLLISION CENTER BY THE INSURANCE COMPANY WHO INSPECTED THE VEHICLE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND THE CONTACT WAS WAITING TO DETERMINE IF THEY WOULD SEND A TECHNICIAN TO DIAGNOSE THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 29,000.
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: Aug 31, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.