Mazda CX‌-90 Forum banner

Powertrain Issues

590 Views 7 Replies 6 Participants Last post by  Blknblue
I am a Mazda fan and support their engineering philosophy. Over the last few days, I have been reading complaints about powertrain issues related to the transmission posted by YouTube reviewers and owners on Reddit.

Texas Truck Channel - CX90 Powertrain Issue

Reddit CX90 Owner - Engine Malfunction

Reddit CX90 Owner - Another Engine Malfunction

So far, there has been no documented issue with a path to resolution as it is too early and for every car with an issue, there could be 50 other cars without any issues. There is a warranty to cover such issues along with lemon laws. Hopefully, Mazda can get this resolved. I am going to delay my purchase.
  • Like
Reactions: 1
1 - 8 of 8 Posts
There is only one thing to take into account here, and that is sample size. We wont know until may's sales data comes out, but the point being is that a 1-3% problem rate on a brand new platform is good by industry standards. For these problems that are coming up that make the cars un-usable, its disheartening for sure.

The first thing I would be doing if this happened to me would be how am I going to be compensated long term for the inconvenience. You could easily negotiate them extending the B2B warranty to 10 yr 100k miles and add a maintenance package, or you could have Mazda buy it back from you including inconvenience fees (this will be a harder fight for "inconvenience" sake). In the end if the car ends up being a lemon, they will have to buy it back. But you will catch more flies with honey, so try to get a free extended warranty and free maintenance package out of the inconvenience first. The dealer/mfgr cannot legally make you waive your lemon car rights in order to gain such compensation, although they may try. This also tends to make getting the car lemoned easier, as you have already shown good faith if/when lawyers need to get involved.

I 100% agree though that if any potential buyers aren't comfortable with being the first on a new platform, by all means wait to buy. I was willing to take the risk because the platform checked all the boxes for me at a price that can't be beat. One factor that influenced my decision is understanding from the automotive enthusiast perspective, I wanted to support companies trying to keep the ICE alive and take chances to continue to develop it.
See less See more
  • Like
Reactions: 1
I'm interested to hear from members that have already taken delivery of their CX-90 as to if they've experienced similar issues.

I was able to test drive a demo unit a few weeks back and did note/feel the hybrid electric motor at low speeds, but it was nothing concerning. I did not note any imbalances or engine/transmission roughness at all on local roads or on the highway at speeds. It drove exceptionally well.
Been following these posts with some interest. I knew being an early adopter of a complex new platform would come with some issues and was hoping it would all just be software adjustments. Now I am hoping Mazda handles things well in terms of customer service. We are taking a chance on the new platform it would be great to have that trust and willingness to be a beta tester rewarded with support from Mazds corporate.
  • Like
Reactions: 1
I don't think I've experienced the same issues about stuttering or hesitation that others have described. But it could be not understanding what these descriptions are conveying. We have an early production from Jan. 2023 with serial number in the low 200's. One of the 'Ride & Drive' events had a car ending in 135. We're at 600 miles so far. Had the low 12v warning for a couple days, then learned about there being some kind of 30 minute timer on door / liftgate opening/ putting in accessory/prestart mode etc. Also turning off after releasing brake pedal & setting walk away locking to ensure car goes into sleep mode, this all seems to have rectified 12v warning, so far. After one of the low 12v warnings wife said map froze up & possible radio glitch. Will keep an eye out for anything else.
  • Like
Reactions: 2
I don't think I've experienced the same issues about stuttering or hesitation that others have described. But it could be not understanding what these descriptions are conveying. We have an early production from Jan. 2023 with serial number in the low 200's. One of the 'Ride & Drive' events had a car ending in 135. We're at 600 miles so far. Had the low 12v warning for a couple days, then learned about there being some kind of 30 minute timer on door / liftgate opening/ putting in accessory/prestart mode etc. Also turning off after releasing brake pedal & setting walk away locking to ensure car goes into sleep mode, this all seems to have rectified 12v warning, so far. After one of the low 12v warnings wife said map froze up & possible radio glitch. Will keep an eye out for anything else.
Always amazing the weird electrical gremlins that come from a low 12v battery.
  • Like
Reactions: 1
I am a Mazda fan and support their engineering philosophy. Over the last few days, I have been reading complaints about powertrain issues related to the transmission posted by YouTube reviewers and owners on Reddit.

Texas Truck Channel - CX90 Powertrain Issue

Reddit CX90 Owner - Engine Malfunction

Reddit CX90 Owner - Another Engine Malfunction

So far, there has been no documented issue with a path to resolution as it is too early and for every car with an issue, there could be 50 other cars without any issues. There is a warranty to cover such issues along with lemon laws. Hopefully, Mazda can get this resolved. I am going to delay my purchase.
The powertrain issue reminds me of the dreaded driveshaft vibration issue in the AWD 2020 Telluride. @SC300Es will remember this. The guy who started the first thread on tellurideforum.org ended up returning his Telluride as a lemon, and many others ended up returning to the dealer over and over again trying to get it fixed. There were parts shortages, and sometimes parts were finally replaced and the issue still wasn’t solved. I think it took about a year to sort through it for the unlucky owners who were having these problems. It wasn’t every car but it was a lot of cars. I think ultimately the problem was discovered to be an unbalanced driveshaft, but I’m not completely sure.
I will say that as I put more miles on the car, some of the clunkyness / weirdness at slower speeds is smoothing out. The brakes are starting to become a bit more consistent, and some of the shift clunkyness seems to be getting better. There are definitely still some weird edge cases that I think Mazda will hopefully iron out with a software update, but things are improving.

My driver-side BSM is getting worse though, thankfully it works perfectly fine at highway speeds. But from 30-50 mph, it will just come on (alerting) and hold for long periods of time 30-60 seconds at a time. I have also had it trigger for the vehicle exit warning in a empty parking lot. So clearly there is something wrong with that system, and with so many reporting the same issue on just the driver side probably a software bug.
  • Like
Reactions: 2
1 - 8 of 8 Posts
Top