2023 Mazda CX-50 Complaints

FUEL/PROPULSION SYSTEM — Filed 01/30/2026

Fuel gauge permanently stuck on empty. Computer code = P0463 Occurred on Jan 30, 2026. Mechanic provided error code at that time. Unsafe driving conditions where distance-to-empty calculations are disabled, standard fuel level indicator showing empty (or stuck on full) risking an unexpected engine stall on public highways and roads. I have NO idea how much Fuel is in the tank nor how many miles are left on tank which could lead to unexpected and sudden stops in high traffic situations. Yes: code was confirmed by Advanced Auto, London Motorworks, and personal computer. Fuel sensor stuck on "FULL" in May 18 then again stuck on empty since May 21. Vehicle inspected by mechanic on Jan 30, 2026 Engine Warning light began on Jan 30, 2026 at 9:22amCT

SERVICE BRAKES,FORWARD COLLISION AVOIDANCE — Filed 09/02/2026

Premature brake wear exacerbated by heavy stop and go traffic conditions.

POWER TRAIN,ENGINE — Filed 08/13/2026

On multiple occasions the vehicle has not acceleratedfrom a stop while pushing the accelerator pedal. Have noticed this is usually on warmer days, with AC on half to full, within 3 minutes, and within 1 mile from leaving work for the day after car has sat parked. I am worried this will get worse and cause a potentially dangerous situation when turning left against traffic and the car doesn't accelerate.

VISIBILITY/WIPER — Filed 07/21/2026

While driving 72mph on the interstate at 6am on 7/21/26 the sunroof exploded. No foreign objects made impact with the vehicle and there was no sudden temperature shifts. The glass had no previous defects and it shattered into tiny pieces, failing into the car. The sun shade was open at the time. The vehicle is being serviced at a glass repair shop who noted this is a common issue with Mazda sunroofs.

POWER TRAIN,SEATS,SERVICE BRAKES — Filed 06/30/2026

Rear differential failure, and side seat tear on 2023 Mazda cx 50

POWER TRAIN — Filed 06/17/2026

My rear differential is going out at only 40,000 miles. Ive heard from many other people that this is a widespread issue, and i feel requires a response from the company.

ELECTRICAL SYSTEM — Filed 05/29/2026

The temperature control dial on the climate control system behaves erratically and inconsistently. When turning the dial to increase temperature, the displayed temperature sometimes decreases. When turning it to decrease, it sometimes increases. The dial also jumps multiple units rather than incrementing one degree at a time. The behavior is unpredictable and occurs regardless of whether the engine is warm or cold. This issue has been confirmed by multiple other 2023 CX-50 owners in owner forums, suggesting a manufacturing defect in the encoder mechanism for the temperature control knob. The dealer confirmed the bumper-to-bumper warranty has expired but has not offered a resolution.

ELECTRICAL SYSTEM — Filed 02/01/2026

When adjusting the temperature in the car with the dial, it does not respond correctly. It either jumps up or down by multiple degrees. This causes to take your eyes off the road to try to adjust the temperature. No warning lights came on and pushing lighter or harder on the dial does NOT fix it. Only driver side is currently having this issue.

VISIBILITY/WIPER — Filed 02/27/2026

2023 Mazda cx50 has a leaking panoramic sunroof and was noticed on February 27th, 2026 after a hard rain. Got an appointment with my dealership on March 4th, 2026 I bought my car through, they denied helping me of any kind and diagnosed my car with a cracked sunroof bypass drain plug and the part can’t be replaced, the entire panoramic assembly needs to be replaced. I believe this is a safety issue and Mazda Corporate will not help either. Water should not be coming into my car with electronics at risk!

ELECTRICAL SYSTEM — Filed 05/01/2022

1) Climate Control System Malfunction I am reporting a safety-related defect involving the climate control system in my vehicle. Specifically, the temperature control knob is malfunctioning and behaves erratically. When adjusting the temperature, the system does not respond consistently and will unpredictably change temperature settings without corresponding input. This was diagnosed at The Autobarn Mazda of Evanston to be a failure within the HVAC control system. I see it is a common issue discussed in online forums. The issue has been diagnosed and confirmed by a service technician. At this time, the vehicle has not been fully repaired and remains available for inspection upon request. This malfunction creates a potential safety risk because it may cause a distraction while driving. The erratic behavior requires repeated adjustments and attention to the climate control system, diverting focus away from the road. The problem has been reproduced and verified by a dealership technician, who confirmed the abnormal operation of the temperature control knob and system. A repair was recommended, with replacement cost $690.24. The vehicle has been inspected by an authorized dealership, and I also contacted Mazda to request goodwill repair assistance. However, they declined to cover the repair cost. My car has 55,000 miles, but this is an issue that has been present early on if not since day 1. Prior to the failure, there were no consistent warning lights or system messages indicating a problem. Given that this appears to be a known issue with this type of system, I am concerned that other vehicles may be affected by the same defect.

POWER TRAIN — Filed 05/01/2022

Transmission Malfunction / Erratic Low-Speed Operation I am reporting a safety-related defect involving the transmission system in my vehicle. The issue appears to have originated as a software-related drivability problem but progressed over time into a more serious mechanical failure affecting the transmission. The vehicle exhibited lurching/hesitation at low speeds, particularly during city driving and while idling or creeping forward in traffic. This malfunction creates a potential safety risk because the vehicle does not respond smoothly or predictably to driver input. The erratic behavior is disconcerting and requires increased driver attention, creating a distraction and reducing confidence in the vehicle’s operation. The issue has been reproduced and confirmed by a service technician, who identified a transmission-related problem and recommended repair or replacement. The failure was not consistent with normal wear and occurred prematurely. The vehicle has been inspected by an authorized dealership and is covered under the 5 year power-train warranty. Prior to the failure, there were no warning lights or messages indicating a major transmission issue. The problem I believe has been there since day 1- initially presenting as mild hesitation that could be mistaken for normal operation (especially with a turbocharged engine), but became increasingly annoying over time. After researching the issue, found similar reports from other owners describing comparable transmission behavior, suggesting this may be a broader defect.

FORWARD COLLISION AVOIDANCE — Filed 08/29/2025

The contact owns a 2023 Mazda CX-50. The contact stated that while driving at approximately 38 MPH. The contact stated he was approaching an intersection when a vehicle in front of him attempted to make a left turn but slowed down. The contact was unable to depress the brake pedal and turned the steering wheel to the left to avoid the crash, but he crashed into the corner of the passenger side rear bumper of the other vehicle. The contact was not sure of the damage to the other vehicle; his vehicle had damage to the right headlight and the front quarter panel. The contact stated that his vehicle was equipped with a front collision avoidance system, but the system had not engaged. The contact stated that no persons were injured. The contact stated that the police were on scene and wrote a report. The vehicle was driven to a collision center for repair. The contact had not had the vehicle diagnosed. The vehicle had been repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 57,000.

AIR BAGS,FORWARD COLLISION AVOIDANCE — Filed 03/07/2026

I am reporting a potential airbag system/emergency brake failure in my 2023 Mazda CX-50. I was involved in a rear-end motor vehicle accident at approximately 60 mph while my vehicle was completely stopped. I then hit the person in front of me. At the time of the impact, the airbags did not deploy, and I received a dashboard message indicating an airbag system malfunction. Since then, the emergency brake turns on and off on it's own at any time. Due to the severity of the crash, I am concerned that the airbags should have deployed, and their failure raises a serious safety concern. I sustained injuries (multiple fractures) as a result of the collision. I am requesting a formal investigation into possible defect or malfunction in the airbag system and emergency brake system.

LATCHES/LOCKS/LINKAGES,STRUCTURE — Filed 03/01/2026

The driver's door is not opening from the inside. To open the driver's door while I am in the vehicle, I have to roll down the window and use the exterior door handle to exit the vehicle. This is a huge safety concern, as the window cannot be rolled down manually. If the car did not have power, I would have to break open the window. The potential for being trapped in the car with this defect is high. Several other owners of this car have reported this: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

SERVICE BRAKES,ENGINE,FORWARD COLLISION AVOIDANCE — Filed 01/14/2026

On 1/14/2026, I was pulling into a parking space in a parking garage when the vehicle abruptly accelerated causing the vehicle to hit the concrete wall in front of me. No braking assist or front collision warning issued. Airbags deployed. The car is currently at Joe Myers Collision Center in Houston, Texas to obtain an estimate for repair. The police did not respond to reported incident. Incident was reported to my insurance company immediately.

SERVICE BRAKES — Filed 12/21/2025

Following a professional brake flush at Roger Beasley Mazda Central in Austin, Texas, the left front brake bleeder screw was left loose. This resulted in a significant loss of brake fluid over several days, causing a 'Brake Warning' light to illuminate and a visible reduction in braking performance. A secondary inspection by an independent mechanic confirmed the screw was not tightened, which caused corrosive fluid to leak onto the wheel and compromised the safety of the vehicle.

STEERING — Filed 12/04/2025

The contact owns a 2023 Mazda CX-50. The contact stated that the steering wheel was loose. The contact was able to move the steering wheel up and down very easily. The contact stated that the vehicle was involved in a crash 7 months ago, and the steering wheel started to become loose one week ago. There was no warning light illuminated. The vehicle was not taken to a local dealer or independent mechanic. The vehicle was not diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was 40,585.

ELECTRICAL SYSTEM,LATCHES/LOCKS/LINKAGES — Filed 09/20/2025

2023 Mazda cx50 with 28k miles. This vehicle was purchased 3mths ago. The cx50 has locked me out 5 times & had a dead battery each time. Has been to dealership 3 times. No repairs made after dealership doing battery drain extensive testing. Cycle of this happening 3 times. I’ve been in a loaner more than my purchased vehicle. It is a safety concern leaving me locked at of my vehicle 5 times. Then when gaining access to vehicle with manual key. Vehicle has had dead battery 5 times all of this occurred over 3 months. With no repairs made from dealerships. It’s been to two different dealerships. Major safety concerns! The dealership has agreed to buyback the cx50. But it has taken a lot of phone calls with dealerships & Mazda corporate. Vehicle is still currently owned by me & awaiting buyback to occur this week. Not a safe vehicle!!! No warning lights no signs of any kind & battery continues to be dead. Battery changed twice by dealership. No other repairs done.

ENGINE,FUEL/PROPULSION SYSTEM — Filed 11/07/2025

Cylinder 3, loss of engine power . Safety feature on and off. Life threatening .in the Middle line, suddenly English loss the power almost car behind me crash on us at the time my wife with me in the car . Yes dealer said fuel injector problem , I believe this is more then that . Yes vehicle inspected by dealer under warranty I saw engine logo and something malfunction, but at the I was hurry to drive car on the safe side after that I turn off engine.

AIR BAGS,SEAT BELTS — Filed 06/08/2025

The contact owned a 2023 Mazda CX-50. The contact stated that while driving 55-60 MPH she crashed into a deer. The air bag did not deploy. The seat belts malfunctioned and failed to secure the occupant. There were no warning lights illuminated. The contact received an alert on her app. The contact sustained injuries to her eye. The contact lost vision in her eye, and medical attention was provided. There were no reported fires. A police report was filed. The vehicle was towed to an unknown location. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. The vehicle was deemed a total lost. The failure mileage was approximately 27,000.

BACK OVER PREVENTION,FORWARD COLLISION AVOIDANCE — Filed 06/04/2025

I have had my 2023 Mazda CX-50 for almost two years. Since I got the car, I have had no issues with the i-Activsense until June 2025. The reason I got the newer car was to ensure the safety of my family; however, Mazda failed to do their part. My car was recently involved in a car accident due to a faulty system. It appears that the newer Mazda CX-50s were included in a recall, but the 2023 model was not and it should be. On the day of the accident, my daughter was driving my car. The traffic was slowing down, and two lanes of traffic had to merge to one lane due to construction and all of a sudden, the car in front of her slammed on their breaks and the car could not stop in time before hitting them. My car never sent an alert until contact was made with the other car, and the emergency breaking did not activate. After my car hit the other car, an alert came on screen that indicated the i-Activsense was disabled. Once the car was turned off and then back on the alert disappeared. Additionally, I am now having issues with the rear camera not alerting if someone is behind me (car or pedestrian). I have a 2019 Jeep Grand Cherokee that will slam on the break for you if you get too close to an object when you are in reverse. Isn't that what the Mazda CX-50 should be doing?

AIR BAGS — Filed 12/31/2024

There was an airbag malfunction. The whole air vent came off and the airbag bursted. Smoke was everywhere. It was awful.

FORWARD COLLISION AVOIDANCE — Filed 07/11/2024

The Collision Avoidance System did not activate, to avoid a front-end collision. The vehicle in front of me stopped, making a right-hand turn onto another road. I moved forward, not seeing him stop. My car rear-ended the vehicle in front of me, with no warning or activation from my system.

SUSPENSION — Filed 10/05/2023

My ball joint failed on my brand new 4 month old vehicle at mile 2077. You absolutely have the ability to inspect it if you would like. This caused a MAJOR safety issue to both me and people around me as I lost complete control of my vehicle. Luckily, no one was injured. I believe this is an independent claim thus far on a CX-50. Mazda claims they had it inspected but I never saw anything in writing but I did have a damage adjuster of my insurance checked it out. I was stated my an independent mechanic and a tow truck driver that I did not cause this and something failed. Mazda also claims the district manager has looked at the vehicle and they don’t know how or what happened but they do not claim responsibility even though my car is covered in warranty. There were no warning lights or anything that told me this was going to happen, when my control arm popped off it veered me into a curb and blew my tire, losing control of the car, and skidding to a stop across an intersection

ELECTRICAL SYSTEM,UNKNOWN OR OTHER,SERVICE BRAKES — Filed 05/20/2022

At 10:16 am, I was driving home on Hall Rd. in Michigan. Hall Road is currently under construction and only two lanes are open and the speed is 40mph. It was raining pretty hard and also very windy. I was traveling West in the left lane and i noticed people in front of me began slowing down to about 10mph and going around an object I couldnt see. By the time it was my turn to pass said object, I realized it was a speed limit sign that had been knocked over by the wind. I went around it and pulled off to the side of the road where there was a small patch of flat, clear land (I believe there is a fire extinguisher or some kind of service system there). Try to act fast, I opened my door, removed my seatbelt and after looking for cars behind me, I ran across the road and picked up the large sign and moved it out of the way. By the time I had moved the sign, I noticed cars slowly approaching but were not willing to pass me. Then I heard them honking their horns but because it was raining hard, I couldnt see who or hear what they were saying. I figured Id look back at my car in case that was the reason and sure enough, it was and I jumped out of the way, and watched my car slowly fall off the ledge of the open roads and into the construction area of the new roads (there was a 2-3 foot deep and maybe 1-2 feet wide trench between the open road and the newly paved roads). My car then stopped abruptly, hanging over the ledge. Seeing the car had stopped completely, I opened the door and slowly got the car off the ledge. This did minor damage to the underside of my front and rear bumper but nothing serious. The problem I feel that is evident is that the car never engaged the electronic parking brake. This was a similar issue to what led to the death of [XXX] (granted, his shifting mechanism was an Audi style shifter and was shift-by-wire). I am not sure exactly what kind of automatic transmission is in my Mazda other than a 6spd. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)