2017 Mercedes-Benz GLC 300 Vehicle speed control Problems
- Complaints
- 1about this part
- Share
- 1%of 101 total for the year
- Median mileage
- 7,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the vehicle speed control of the 2017 Mercedes-Benz GLC 300, 1% of the 101 complaints for this model year. Where a mileage was given, the median is 7,500 miles.
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 have experienced recurrent but intermittent issues with the transmission/acceleration of my mercedes glc 300 2017. Today, after I went up and then downhill, the car slowed dramatically on its own. When I pushed the gas pedal to the floor, the car did not respond immediately. After several seconds, the car started to accelerate. In the meantime, I was worried I would be rear-ended by traffic behind me. …”
NHTSA complaint #10971802, filed 2017-04, 7,500 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 2017 Mercedes-Benz GLC 300
37 complaintsFuel system
16 complaintsElectrical system
15 complaintsOther or unknown
13 complaintsAir bags
11 complaintsSeat belts
8 complaintsVisibility (wipers, defrost, mirrors)
8 complaintsTransmission and drivetrain
7 complaintsBrakes
4 complaintsForward collision avoidance
4 complaintsSteering
4 complaintsTires
3 complaints
← All problems reported for the 2017 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