2023 Mazda CX-50

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

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.

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.

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.

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.

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!

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.