MAZDA Complaints

The contact called on behalf of a customer who owns a 2018 Mazda Mazda3. The contact stated that the windshield wipers had become inoperable. The vehicle was taken to the contact's auto repair shop, Tire-Rama, where the windshield wiper switch was replaced; however, the failure persisted. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 19V272000 (VISIBILITY); and referred the customer to the dealer for assistance. The vehicle was taken to the dealer, who informed the owner that the vehicle was not covered under the recall because the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was approximately 200,000.

My wife was driving the vehicle when the emergency lights started going off. She had to pull over because the car wouldn't run and said it was overheated. All the maintenance has been done to the car. We took it to the dealership and they said it is a cracked head and it is a known issue. They even issued a extended warranty for it. It is TSB 01-002/23. There should be a recall on this not just a partial credit.

I am reporting a severe safety defect on a brand-new Mazda CX-50 Turbo Premium Plus involving a complete failure and malfunction of the Advanced Driver Assistance Systems (ADAS), specifically the proximity, forward collision, parking collision, and automatic emergency braking sensors. The safety sensors continuously malfunction, creating an immediate and erratic hazard while driving. The chief concern is the risk of uncommanded, sudden automatic emergency braking at highway speeds, or the complete failure of critical safety warning systems during a real collision event.Upon identifying this safety risk, I contacted an authorized Mazda dealer to arrange an emergency repair. The dealership explicitly promised a loaner vehicle so they could hold my car safely for diagnostic testing. However, when I arrived, the dealership reneged on the loaner vehicle and refused to check the car into service.Instead, dealership sales and service personnel drove my vehicle into the service bay and instructed me to get inside the cabin. A staff member then entered the vehicle settings menu and manually muted the auditory safety alerts to conceal the active sensor malfunction warnings. I immediately protested, stating that muting a critical ADAS safety warning system was unsafe, did not diagnose or repair the defect, and put my life and public safety at risk. Despite my clear objections, the dealership's management instructed me that I must continue to drive the vehicle with the disabled/muted safety systems anyway and to bring it back if anything else happens.When I refused to accept this hazardous vehicle modification and sought alternative resolution, the dealership owner issued a written communication banning me from the property, entirely refusing to honor the manufacturer's warranty or perform mandatory safety repairs. The vehicle remains unrepaired and unsafe to operate on public roads due to random sensor failures, and the primary local dealer has outright refused service.

2018 Mazda CX-5 AWD with 2.5 L engine, non turbo. Car has 98,914 miles. Rear differential started leaking oil. Dealer stated that the differential needs to be replaced, for $5,003.33. Manual does not provide for oil change intervals. Lifetime oil. 98K must be the life expectancy. Has not been fixed yet. Sitting in the garage dripping oil onto a piece of cardboard. independent shop looking for a low mileage used differential.

The contact owns a 2018 Mazda CX-5. The contact stated that while driving the vehicle he could smell a burning odor, and added that he noticed a puddle of oil on his driveway. The vehicle was taken to an independent mechanic where it was diagnosed to have a cylinder crack causing the cylinder to leak oil all over the engine. The dealer was not notified of the failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 104,000.

Vehicle radiator cracked at 31k miles on the highway leaving myself and my family stranded. My roof has been leaking since I bought the vehicle and Mazda keeps saying they can't replicate the issue and if I can find it they will then fix it. I don't think that's my job. I bought a car that I expected to be able to drive safely without issues. I don't want to play find the issue because I'm not a mechanic or manufacturer. It has been in and out of the shop since purchase in October 2023. Longest period was about 28 days. It's currently in the shop for the radiator and many people are having the same issue. They say I am 3 weeks past warranty but with these items being known issue I don't want to have to pay for them.

The passenger seat occupancy sensor goes off intermittently, causing an extremely distracting seatbelt alarm in the vehicle during operation. This has occurred to me while driving on a highway; I deeply lost focus on controlling the vehicle as the alarm started suddenly, I shoved the one water bottle off the seat to no avail, and I had to reach way over to plug the seatbelt in to silence it. In other instances where this occurs, only a full restart of the vehicle will reset the sensor. Existing TSB 08-001/23 was deemed to not cover my vehicle by the manufacturer, despite my VIN being in range and symptoms being identical.

My 2019 Mazda CX-5 (equipped with the 2.5L naturally aspirated SkyActiv-G engine with cylinder deactivation) has experienced a severe structural failure resulting in a cracked engine cylinder head. This casting defect allows pressurized motor oil to leak continuously from the cylinder head down onto the hot engine block and nearby exhaust components. This has led to the following severe safety risks: engine oil is leaking onto the exhaust manifold and creates an extreme risk of engine compartment fire when the vehicle is in motion; sudden loss of oil pressure or complete structural failure of the cylinder head can cause the engine to stall or seize unexpectedly without warning, completely disabling the vehicle in live traffic and creating an imminent crash hazard; and dropping oil levels and leaking fluids burning against the engine produce strong smoke and chemical odors that enter the cabin, which can cause driver distraction and severely limiting visibility if smoke escapes through the hood. We are also inhaling these odors. Mazda is fully aware of this structural engine defect and has detailed it internally under Technical Service Bulletin TSB #SA-031-21 (as well as related TSBs for oil seepage/leaks on these cylinder heads). Despite acknowledging the manufacturing flaw, Mazda has failed to issue a safety recall for this dangerous fire and stalling hazard, forcing consumers to drive unsafe vehicles or pay thousands of dollars out of pocket for a known defect. The vehicle currently has 62,317 miles. The crack and oil leak were officially diagnosed by the Carlsbad Mazda dealership service department on 5/26/26. I am requesting that the NHTSA launch a formal safety defect investigation into Mazda 2.5L cylinder head cracking to force a safety recall before this defect leads to a fatal fire or highway accident.

My 2025 Mazda CX-5 includes a Traffic Jam Assist (TJA) stop and go feature. This feature allows the adaptive cruise control to move the vehicle in traffic with minimal drier intervention. As traffic advances the vehicle moves. If traffic stops, the vehicle stops. When clear of vehicles based on the set safe space setting in the adaptive cruise control, it resumes the predetermined speed set in the adaptive cruise control. The problem: While in "traffic jam assist" (TJA) mode, if changing lanes L or R to a lane that has vehicles farther away (clear lane), the cruise control radar/camera then sees a clear opening and begins accelerating to the predetermined speed on the cruise control. However - at this time the system fails to recognize a that another vehicle is farther ahead. maybe 4 or 5 car lengths ahead, and continues accelerating dangerously close to the next vehicle (I cannot say if it will stop or not because I have intervened to apply the brakes), cannot risk a rear end to another vehicle.The system fails to recognize that another vehicle is present after a lane change has occurred and braking or slowing as expected does not take place. This is a common repeatable scenario. The failure to recognize another vehicle after changing lanes is a serious and dangerous problem that should not be taking place. This poses an accident risk from an automated system that has a inherent flaw in its logic/design. The NHTSA should investigate this system and determine what corrective action can be taken to prevent a collision while using this system.

Taking my car in for now the 3rd time for the headlight error "Headlight System Malfunction. Have the vehicle inspected. The first 2 times it occurred around 3000 miles where they first tried a software and reset then it did it again so took it back and they swapped the left headlight which had failed. Then it was good for a few months until the issue came back recently around 7500 or so miles. Now it's doing it pretty consistently again and I suspect the right headlight has failed. Taking it in today to get checked out again. I'm surprised it's not a recall at this point as headlights are important and allow you to see at night. Seems to have the issue whenever the lights come on now so it's pretty consistent. I've checked forums and I am not the only 1. There are many ND3 owners with the same issues of failing headlights or in some cases other modules.