2011 Mercedes-Benz S550 Vehicle speed control Problems
- Complaints
- 1about this part
- Share
- 11%of 9 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the vehicle speed control of the 2011 Mercedes-Benz S550, 11% of the 9 complaints for this model year.
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.
“The contact owns a 2011 Mercedes-Benz S550. While driving 70 MPH, the vehicle accelerated up to 110 MPH on its own. The rear of the vehicle rattled without warning. On another occasion, all the warning indicators failed to illuminate and the GPS provided incorrect information. The vehicle was taken to a dealer, but they could not duplicate the failure. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was unknown.”
NHTSA complaint #10914797, filed 2016-10Vehicle speed control: other model years
Other parts of the 2011 Mercedes-Benz S550
2 complaintsOther or unknown
2 complaintsElectrical system
1 complaintsEngine
1 complaintsExterior lighting
1 complaintsForward collision avoidance
1 complaintsBody and structure
1 complaintsSuspension
1 complaints
← All problems reported for the 2011 Mercedes-Benz S550
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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