2019 Mercedes-Benz GLC 300 Vehicle speed control Problems
- Complaints
- 2about this part
- Share
- 4%of 47 total for the year
- Median mileage
- 48,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the vehicle speed control of the 2019 Mercedes-Benz GLC 300, 4% of the 47 complaints for this model year. Where a mileage was given, the median is 48,000 miles. 2 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I was driving on a street 5mph and all of a sudden my car surged and led me to curb where i knocked hit a steer din and it veered onto someone’s lawn and hit a huge planter and stopped . Air bags were deployed . I had no control over the car . EDR was preformed and I’m sure it was a throttle surge issue and cause unintended acceleration . The edr shows I was going 5 miles an hour but then says pedal was pushed to 100%. While traveling at approximately 4–5 mph during a low-speed maneuver, with light accelerator input, the vehicle unexpectedly surged forward. I did not intend to accelerate. …”
NHTSA complaint #11714225, filed 2026-01“The contact owned a 2019 Mercedes-Benz GLC 300. The contact stated that while driving at 15 MPH up and down the street on the fourth trip, the vehicle pulled to the left and suddenly accelerated, traveled over the curb, went through a sign on a pole, vegetation, and crashed into a concrete planter box. There were no warning lights illuminated. The air bag deployed. The contact sustained bruises on her knees and hands. Medical attention was provided at the hospital. The paramedics, the police department, and the fire department were on the scene. The paramedics checked her out at the scene. …”
NHTSA complaint #11682374, filed 2025-08, 48,000 milesRelated service bulletins
- 11031730Aug 27, 2022Dear Mercedes-Benz Owner: In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz…
- 11031728Aug 19, 2022Dear Mercedes-Benz Owner: In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz…
- 11031727Aug 19, 2022In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC (“MBUSA”) hereby…
- 11031731Aug 13, 2022Dear Mercedes-Benz Owner: In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz…
- 11031592Aug 5, 2022Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has extended the warranty for the accelerator pedal wiring harness and connectors from the original New…
Vehicle speed control: other model years
Other parts of the 2019 Mercedes-Benz GLC 300
15 complaintsElectrical system
14 complaintsEngine
11 complaintsBody and structure
5 complaintsTransmission and drivetrain
5 complaintsVisibility (wipers, defrost, mirrors)
4 complaintsFuel system
3 complaintsAir bags
2 complaintsBrakes
1 complaintsSeat belts
1 complaintsTires
1 complaintsWheels
1 complaints
← All problems reported for the 2019 Mercedes-Benz GLC 300
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology