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Vehicle speed controlPart report

2016 Mazda MAZDA6 Vehicle speed control Problems

Complaints
7about this part
Share
9%of 77 total for the year
Median mileage
40,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 7 complaints about the vehicle speed control of the 2016 Mazda MAZDA6, 9% of the 77 complaints for this model year. Where a mileage was given, the median is 40,000 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 braking to a stop after decellerating, driving originally about 45 MPH. Traffic was stopped in front of me. I was in motion on a highway, going straight ahead. My car slowed but resisted stopping. I pressed on the brake pedal harder until I came to a complete stop. My right foot was entirely on the brake, as I only use my right foot to operate the pedals. The engine was revving like it was accellerating. The car was in drive. No warning lights came on the dash. The engine continued to rev higher in intensity. I put the car into park, and the engine revved much higher. …”

NHTSA complaint #11343512, filed 2020-08, 40,000 miles

“I was about to park the car in a parking spot in a mall. It was crawling speed and almost about to stop. Then the car suddenly surged forward and went over the curb on to the other side. Thankfully there was no other vehicle or person on the other side. I was holding tight the steering wheel. My husband pulled the electronic parking break button and the car finally came to a stop. Tires were burst on running over and there was damage to front left side of car. I believe this could be an issue of unintended acceleration.”

NHTSA complaint #10785455, filed 2015-10, 2,483 miles

“The vehicle exhibits dangerous electronic malfunctions. A licensed technician (MV-113255) has confirmed a sporadic unintended acceleration defect where the cruise control 'decrease' button causes the vehicle to increase speed. Additionally, the vehicle repeatedly enters 'Limp Mode' in active traffic, causing a violent jerk and a total loss of acceleration while displaying a 'Smart City Brake Support' (SCBS) failure on the dashboard. …”

NHTSA complaint #11732963, filed 2026-04

“The contact owns a 2016 Mazda MAZDA6. The contact stated that the cruise control would not cease to function and when attempting to disengage it the vehicle would increase in speed. The failure occurred without warning. The failure occurred six times. The vehicle was taken to the dealer where it was diagnosed that the cruise control buttons needed to replaced. The vehicle was repaired however the failure recurred. The failure mileage was approximately 34,000.”

NHTSA complaint #10957998, filed 2017-03, 34,000 miles

“When driving, after a period of 10 - 20 minutes usually, of the adaptive cruise being on (not necessarily in use), the buttons on the steering wheel will re-map. That is, the + button for adjusting the cruise speed up by 1 mph increments will switch with the - button that adjusts the cruise speed down by 1 mph increments. This happens reliably... if I've driven the car with adaptive cruise on for more that 10 - 20 minutes, the buttons will re-map. + slows the car down or doesn't work at all (does nothing). - speeds the car up. Also, rarely, the cancel button will speed the car up. …”

NHTSA complaint #11590278, filed 2024-05

Related service bulletins

Vehicle speed control: other model years

YearComplaintsShare of year
201812%
201679%
201523%
201497%
201111%
201010%
200921%
200721%
200653%
200575%
200474%
20031810%
200214%

Other parts of the 2016 Mazda MAZDA6

Brakes
14 complaints
Electrical system
11 complaints
Other or unknown
11 complaints
Transmission and drivetrain
11 complaints
Seats
9 complaints
Engine
7 complaints
Air bags
6 complaints
Steering
6 complaints
Body and structure
5 complaints
Suspension
5 complaints
Wheels
5 complaints
Fuel system
4 complaints

← All problems reported for the 2016 Mazda MAZDA6

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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