2023 Mazda CX-50 Electrical Problems

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.

NHTSA ID

11740817

Incident

May 29, 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.

NHTSA ID

11738212

Incident

Feb 1, 2026

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.

NHTSA ID

11736004

Incident

May 1, 2022

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.

NHTSA ID

11700471

Incident

Sep 20, 2025

Power steering is sticky when turning wheel to left between 10 to 11 o clock position

NHTSA ID

11632843

Incident

Dec 21, 2024

If any liquid or debris material enters the console cover area where many controls for the car are located, the “command switch” (as described by the Mazda dealer) underneath is destroyed. Many items are affected as noted above (some of which I could not check off). They have not responded as to whether some type of shield or even tape could be used to prevent this fault.

NHTSA ID

11566562

Incident

Jan 17, 2024

After installing Mazda Genuine Accessory 4-pin trailer wiring harness (P/N VA40-V7-780A), and Mazda’s trailer hitch as well, found that the wiring does not operate correctly. When the turn signal or hazard lamps are activated while the brake is applied, the trailer lamps will operate erratically, flashing faster for a few cycles, then return to a normal flash rate before the erratic behavior repeats. The Mazda’s lamps operate normally. This has occurred with two different trailers, one with incandescent and one with LED lamps. To verify that the concern wasn’t with the trailers, a small trailer-side harness was made that used a floating ground, and with either incandescent or LED stop/tail/turn lamps plugged into it the concern was the same. Dealership verified the concern and verified correct installation of the vehicle harness. They were able to replicate the concern on another CX-50 as well. They reached out to Mazda’s technical assistance, but have not been advised of a repair. This was several months ago. Mazda’s customer service was of no help. May not be compliant with FMVSS No. 108, S14.9.3.5.3, S14.9.3.9.3, and Figure 2. Concerned that this may increase the risk of another vehicle striking a trailer attached to the Mazda. The vehicle is available for inspection upon request.

NHTSA ID

11561232

Incident

May 7, 2023

The manufacturer has deceived buyers concerning the towing capabilities: https://insidemazda.mazdausa.com/the-mazda-way/mazda-cx-50-offers-confident-towing-capabilities/ I bought the OEM tow hitch and wiring to achieve the advertised 3500 lb towing capacity, but according to the owners manual that is not possible as you are limited to 1000 lb without a brake controller which can not be purchased through Mazda. The trailer wiring and vehicle manual states that you must not modify it, which would be required to install a brake controller. I currently own a 2000lb trailer; I bought this vehicle specifically to pull it. There is no way to achieve this safely and legally despite the advertisements without aftermarket parts. If the required aftermarket brake controller install were to damage the vehicle's electrical system in some way, I doubt Mazda would cover that under warranty. The promotional material says nothing about non-OEM equipment first having to be installed in the car to achieve this tow limit safely. I'm sure the Mazda marketing department is well aware that this claim would make the CX-50 more appealing vs. it's competitors, however it is not accurate.

NHTSA ID

11511087

Incident

Nov 27, 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

NHTSA ID

11466101

Incident

May 20, 2022