The infotainment system screen has developed several cracks in the upper left-hand corner of the screen. Often time these cracks look like spiderwebs or frost --it's commonly referred to as "spider cracking." This is the second time my vehicle has had this issue. At the present time, the cracks are contained to the upper left-hand corner of the screen, but they are getting larger. The vehicle has been inspected by my local MAZDA dealership and I'm awaiting a resolution. As I understand, this is a known issue with 2016-2017 model years and a TSB has been issued for these years. MAZDA should extend the TSB to 2018 and beyond.

- Albany, NY, USA

The main infotainment display randomly exhibited "spider cracking" which obstructs the view of the material being displayed within the screen. It is unsafe because the operator is unable to see maps, time, locations, controls, reverse cameras, etc. All of these are displayed in the screen and, due to the manufacturing defect, the operator is distracted by straining to see what is displayed behind the cracking. This is a well documented issue plaguing Mazda vehicles. Mazda has admitted it as defective, and are fixing the problem in the 2016-17 models. However, the 2018 model (which has the same screen as the 2016-17) is being refused. The fix needs to be extended to the 2018 model and beyond since it iw clear this it is still a widespread issue. It is well documented that once the cracking starts, it quickly spreads to the entire screen if not repaired, causing even more danger to the operator who will be distracted while attempting to see the display behind the screen.

- Ballston Spa, NY, USA

Mazda has refused to admit and repair a clearly defective screen, affecting visibility of the camera system, navigation, climate controls and infotainment. Pictures attached are several months old and the issue continues to get worse. The dealer says "corporate won't cover it", corporate customer service will not respond to repeated attempts at contact other than a generic "your VIN is not covered". Service alert direct from Mazda and pictures of my screen showing the EXACT issue are attached. For a $40k+ vehicle with less than 30k miles on it (less than 20k when the issue started), this is unacceptable. Please hold Mazda accountable.

- Harrisburg, PA, USA

When I shifted into reverse the back up camera wouldn-€™t come on and instead a screen that said check your surroundings stayed on the screen. I reset it using the 3 button reset method and it came back on. Drove it to the grocery store, and then it sat in my driveway for 3 hours. When I went to go back in to town, the car was completely dead. No power whatsoever. We tried jumper cables and those didn-€™t work. Finally tried a battery charger and after an hour of charging it finally came back on. A car this new shouldn-€™t be having these issues.

- Neotsu, OR, USA

Car showed ignition on when the car was turned off. Same day while driving on highway car engine revved for no reason. Also when someone got out of parked car it said no key detected but car was still turned on and key was right beside me.

- Bristow, VA, USA

Cpsc: The manufacturer sells a smart car seat. The consumer stated the cybex sironsafe 2.0 car seats plug into the vehicles obd ports. The car seats both individually drained the battery of the vehicle. The manufacturer was made aware of the failure but, did not offer any assistance.

- Atlanta, GA, USA

This vehicle is has been on lease for 1 year and has less than 4000 miles on it. Initially while attempting to start the vehicle that had been parked overnight it gave the following warnings: - keyless entry malfunction - charging system malfunction - vehicle overheating - battery malfunction the car would not shut off until I held the start/stop button in for roughly 20secs. The dealer service center took the car and told us the battery had a low charge, charged it and returned it. Several weeks later while the vehicle was in motion with 2 adults and 2 children on a city street traveling at about 20mph it gave the following warnings: - keyless entry malfuction - charging system malfuction - vehicle overheating - battery malfunction - pull over to safety at this point the vehicle was still in motion and the stereo, HVAC, and power steering cut out. I was able to pull the vehicle over but again had trouble shutting it off. I had to hold the start/stop button for 20-40secs. The car was towed to the dealer service center. We were told by the service center that a lot of 500 vehicles of this year and model had an engine harness defect that no recall had been issued for but they were aware of defect and had a fix for it. I feel I was lucky that I was only traveling 20mph when the power steering cut out. If I had been traveling highway speeds on a bend the situation could have been tragic and I had my children in the car. Currently, based on what I've been told by the dealer service and sales managers there are potentially hundreds of other 2018 Cx-9S which could experience this same malfunction while in motion.

- Troy, MI, USA

While driving the vehicle the car to an abrupt stop and I had no control. The dashboard lit up with all types of warnings and heat was coming from the front of the car.

- Ridgefield, CT, USA