2016 Mazda CX-9 Electrical system Problems
- Complaints
- 14about this part
- Share
- 13%of 107 total for the year
- Median mileage
- 24,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 14 complaints about the electrical system of the 2016 Mazda CX-9, 13% of the 107 complaints for this model year. Where a mileage was given, the median is 24,000 miles. 1 of these say a crash was involved and 1 a fire, 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.
“With no warning the smart brake system malfunction and the front radar system malfunction warnings come on and I am unable to use the cruise control. In addition the parking brake light comes on and the parking brake is not on as I am driving.”
NHTSA complaint #11289823, filed 2019-12, 67,000 miles“In 2017, my car shut off two times, without warning, one time at a stop light and again on the highway going 70mph. We were accelerating at the stop light when it shut off and then driving on the highway. Took the car to the dealership and 72 codes came up. They said it was the dvd players (that they sold and installed!!!) that were causing the issue. They supposedly 'fixed' the issue. Now in july 2019, the car shut off an additional five times. Three times while driving and twice in a parking lot. …”
NHTSA complaint #11234063, filed 2019-07, 30,400 miles“Driving to work in the morning at 5:45am on 06/05/2018 going 65 MPH and my car cuts engine power and starts lowly declining pressing gas did nothing and multiple notifications flashing such as vehicle system malfunction, forward smart city brake support malfunction, smart brake system malfunction. I had to pull off to the side of the highway I can't even say I can pull off safely because all power was cut. So let the car sit for 5 minutes while off and then restarted and was able to make it work. …”
NHTSA complaint #11118501, filed 2018-08, 6,000 miles“Immediately upon making a sharp right turn into a parking spot, the car suddenly accelerated at a very fast pace without me pushing the gas pedal. My immediate reaction was to press on the brake, but it did not stop. The car slammed into a planter in front of me. The car moved so quickly that it was lodged into the bushes and had to be pulled out by a tow truck. I immediately called the dealer service department and told them what happened. The service manager's immediate reaction was to scoff at the idea that the car accelerated on it's own. …”
NHTSA complaint #11057465, filed 2017-12, 24,000 miles“The infotainment screen containing the backup camera goes blank . The car has 16000 miles on it and has had this problem since new. The dealer has the car multiple times and has not fixed the problem. Research on the internet reveals that there is a major issue with many Mazda vehicles. This problem happens on startup and will continue till shutoff . It may or may not come on upon restart”
NHTSA complaint #11099187, filed 2018-06, 16,000 milesRelated service bulletins
- 11037899Sep 11, 2026DESCRIPTION If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS…
- 11034447Jun 19, 2026This SA supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-061/25 12/17/25 DESCRIPTION If you encounter any type of electrical concern (e.g…
- 11026917Dec 17, 2025If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by…
- 11024999Oct 2, 2025For improvement of electrical diagnosis, the SKYACTIV® Wiring Terminal Test Kits has been delivered all the dealers. The terminal test kit enables you: To check pin fit drag of…
- 11007029Aug 26, 2024For improvement of electrical diagnosis, the SKYACTIV® Wiring Terminal Test Kits has been delivered all the dealers. The terminal test kit enables you: To check pin fit drag of…
- 11007019Aug 15, 2024If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by…
- 11006987Aug 8, 2024In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer. NOTE: Tampering with a motor vehicle odometer is strictly prohibited by…
- 11006917Aug 6, 2024Some customers may complain that their liftgate does not open. This can mean a range of things, from the liftgate not unlatching to the power liftgate (PLG) not opening…
- 11006998Aug 5, 2024Use the symptom troubleshooting tables below to diagnose MAZDA CONNECT concerns.
- 10254188Apr 22, 2024Some customers may complain that the ambient temperature on the instrument cluster is displayed more than 50 °F (10 °C) lower than the actual temperature, resulting in…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2023 | 1 | 8% |
| 2022 | 2 | 18% |
| 2021 | 2 | 5% |
| 2020 | 4 | 21% |
| 2019 | 7 | 13% |
| 2018 | 15 | 12% |
| 2017 | 2 | 3% |
| 2016 | 14 | 13% |
| 2015 | 1 | 3% |
| 2014 | 2 | 4% |
| 2013 | 1 | 1% |
| 2012 | 5 | 2% |
| 2011 | 6 | 4% |
| 2010 | 6 | 3% |
| 2008 | 13 | 8% |
| 2007 | 6 | 7% |
Other parts of the 2016 Mazda CX-9
68 complaintsBrakes
11 complaintsTransmission and drivetrain
9 complaintsFuel system
8 complaintsOther or unknown
6 complaintsBody and structure
4 complaintsEngine cooling
3 complaintsSeats
3 complaintsVehicle speed control
3 complaintsWheels
3 complaintsAir bags
2 complaintsForward collision avoidance
2 complaints
← All problems reported for the 2016 Mazda CX-9
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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