Driving down the freeway, the car throws an error code, reduces speed from 75 to 40 in seconds, with enough time to pull off the freeway. The car has an error code stating "Hybrid battery malfunction." Now the car will not start. The Dealer could not get it started and now wants to charge me for a diagnostic. But from my understanding, they should cover a new battery under EPA regulations (40 CFR Part 85). Any help would be greatly appreciated.
2024 Mazda CX-90: won't start
5 of the 379 complaints about the 2024 Mazda CX-90 describe won't start.
- owner complaints
- 5
- of this car's complaints
- 1%
- recalls
- 0
What owners say
On May 2, 2026, I took my 2024 Mazda CX‑90 to Mazda of Orange because the steering wheel was getting stuck and there was a loud chirping noise when turning the car on and off. The dealership kept my car for 28 days. When I picked it up, they told me the noise was fixed. After three days, the noise returned. The next morning, the car would not start, so I had to jump it and take it back. They said it was the brake assembly line and claimed it was safe to drive when it wasn’t. They also said the bottom battery was giving errors. I had already replaced the top battery in April 2026 for $300, and they replaced the bottom one under warranty. When I brought it in, all dashboard warning lights were on, and the car warned me not to drive over 30 mph. They replaced the battery again but could not explain the warning lights. This was my sixth visit, and they kept blaming rain or fog even when the weather was clear. Two weeks after getting the car back, all warning lights came on again on [XXX]. At [XXX], while taking my husband to the airport, I was afraid to turn the car off. I hit a bump, the lights turned off, then came back on — which makes me think there is an electrical short. Now the transmission jerks hard, especially when the i‑Stop activates. I bought the car in April 2025; it has 47,700 miles, and I have taken it in six times. [XXX] from the mediation department told me he would start a buyback on June 20, 2026, but he is now ignoring my calls. Name: [XXX] VIN: [XXX] Case #: [XXX] License Plate: [XXX] Vehicle: 2024 Mazda CX‑90 (factory warranty still active) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Stopped at a red light on a busy 2-lane road. I-stop function turned the engine off. When the light turned green, releasing the brake caused a "Hybrid Battery Malfunction" error and the engine failed to start. We put the transmission in park and attempted to turn off and turn on the car with the push to start button. When we attempted to start the car with the push to start button, the car would not start. We were unable to shift into neutral to move the car out of the busy 2-lane highway and were blocking traffic for about an hour. The first tow truck to arrive was unable to move the car onto the flat-bed because the transmission was stuck in park and would not go into neutral so another tow truck was dispatched with a dolly. Our safety was at risk because we were stuck in an immobile car in busy highway traffic. A police officer arrived to help direct traffic around our disabled car. The vehicle is currently at the dealership and has not been inspected as of the time of this report.
1st instance 12/06/2023- The battery was drained and it won't start so they changed the battery. Dashboard light says engine malfunction have the vehicle inspected. 2nd instance 02/10/2024- same dashboard light Engine malfunction and Hybrid malfunction. This time they said that DTC was P0E10. They also noticed low battery charge warning. Battery was charged with DCA8000 charger and they said that notif went away. 3rd instance-02/23/2024 same dashboard light. This time they had DTC's of 5. P0E10, P1739:12, P1B05:16, P1739:00 and P1B05:00. to think this is a brand new card purchased last october 2023 with less than 3000 miles.
The major issue that happened to our newly purchased CX 90 last February 3 with more than 500 miles on it started around 5:30 pm of February 8, while my wife is driving this vehicle with my daughter, all of a sudden the car stopped at the middle of the road with warning signs popping up in the dash screen like I-active sense malfunction, hybrid battery malfunction, engine malfunction light on, and on top of these, critical vehicle malfunction. The car won't start and disabled. Also, the vehicle cannot switch to neutral gear to push/pull the vehicle to the side that made the vehicle blocking the roadway until the tow truck came in. My wife and daughter's life was put in danger when this vehicle suddenly stopped in the middle of the road with cars passing by on both ways. I also found out based on the federal safety agency vehicle safety, Mazda recall website, carfax and Kelly blue book, that this particular vehicle with its VIN has a SAFETY RECALL due to its steering issue that may increase risk for crash. This was not disclosed to us when we are on the process purchasing this vehicle and they did state inspection and passed it that made we doubt how did it happened.. The vehicle is now with the dealership repair shop and the last update I receive was the technician is still checking on it.
Service bulletins that may apply
- This Service Alert supersedes the previously issued SA(s) listed below
- This bulletin supersedes the previously issued bulletin(s) listed below
- This Service Alert supersedes the previously issued M-Tip(s) listed below
- This Service Alert supersedes the previously issued SA(s) and TSB(s) listed below: The changes are noted...
- Green residue (yellow circle) on the outer surface of the coolant reserve tank, which appears to be...
- On some vehicles, an engine oil leak from the rear of the engine at the turbocharger drain back tube could...
- Some vehicles may exihibit a vibration in the accelerator pedal and steering wheel when accelerating...
- CHECK ENGINE light ON with DTC P0012, P0011, and possibly P0010
Related recalls
No recalls on record for this model year.
Questions about the 2024 Mazda CX-90 won't start
Is won't start a common problem on the 2024 Mazda CX-90?
5 of 379 owner complaints about the 2024 Mazda CX-90 (1%) mention won't start.
Is there a recall or service bulletin for this on the 2024 Mazda CX-90?
There are 0 recalls and 54 service bulletins for the same area of the car. Check them below with your VIN.
Other symptoms on the 2024 Mazda CX-90
Jerking 43Adaptive cruise 23Lane assist 16Grinding brakes 14Check engine light 11Loss of power 11Power steering loss 11Stalling 10Overheating 8Fuel pump 7Steering lock-up 7Won't shift 7Door locks 6Harsh shifting 5Headlights 5
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