2018 Mazda CX-9 Forward collision avoidance Problems
- Complaints
- 4about this part
- Share
- 3%of 128 total for the year
- Median mileage
- 946miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the forward collision avoidance of the 2018 Mazda CX-9, 3% of the 128 complaints for this model year. Where a mileage was given, the median is 946 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 purchased a new Mazda CX-9 in sept 2017 because it had the highly touted smart city braking system for which I paid thousands extra. I had had a previous rear end collision and wanted to be sure this system would at least warn me. I set up some cardboard boxes wrapped in aluminum foil. I slowly (10 MPH) drove the car into them without touching the brake or accelerator. The car did not slow down or warn me.(I tried sending a video to you from my iphone which may not go through) I made an appoint to repair this obvious factory defect and significant safety issue. …”
NHTSA complaint #11053492, filed 2017-12, 946 miles“I am submitting this recall request because my vehicle has experienced repeated incidents of a serious safety issue. While driving—most often on the highway—a warning appears that says “Smart System Brake Malfunction.” Immediately after, the car begins braking on its own without driver input. This has happened multiple times and, based on online reports, it appears to be affecting many Mazda vehicles across different models and years. Each time, I have been forced to pull over, turn off the car, and restart it to temporarily resolve the issue. …”
NHTSA complaint #11682407, filed 2025-08“1. The navigation has a frosted crackle appearance framing the screen. It is difficult to read the navigation when needed. I know this has happened to other models of this vehicle and those were recalled and covered. 2. The brake senor keeps going off stating SMART BRAKE SYSTEM MALFUNCTION . This goes off repeatedly while driving. 3. Then a second message pops up and reads FRONT RADAR SENSOR SYSTEM MALFUNTION .”
NHTSA complaint #11654693, filed 2025-04Related service bulletins
- 10203735Nov 16, 2021NOTE: This Service Information is only applicable for vehicles equipped with a Forward Sensing Camera (FSC), KDD1-67-XCX and GSH7-67-XCX*. If B61L-67-XCX* appears in the GEPC…
- 10194887May 18, 2021Some vehicles may have one of the following DTCs stored in memory along with a system status notice on the Multi-information display OR display a system status notice with no…
Forward collision avoidance: other model years
Other parts of the 2018 Mazda CX-9
76 complaintsOther or unknown
20 complaintsElectrical system
15 complaintsTransmission and drivetrain
13 complaintsBrakes
11 complaintsFuel system
7 complaintsBack-over prevention (rear camera)
3 complaintsSteering
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsAir bags
2 complaintsEngine cooling
2 complaintsSeats
2 complaints
← All problems reported for the 2018 Mazda CX-9
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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