Category Archives: Mazda

News about Mazda automobile manufacturer. News about Mazda recalls, technical service bulletins (TSB), and problems regarding Mazda vehicles.

2024 Mazda CX-90 PHEV Issues: Could Your Vehicle Be a Lemon?

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The 2024 Mazda CX-90 Plug-in Hybrid Electric Vehicle (PHEV) is facing serious concerns from owners, with a reported 130 complaints, 10 recalls, and 303 manufacturer communications. As this model hits the market, many drivers are voicing their frustration over problems that range from safety-critical issues to major mechanical failures. The list of concerns brings into question whether some of these vehicles could qualify for a buyback under California’s Lemon Law. Here’s an in-depth look at the problems plaguing the 2024 CX-90 PHEV.

Top Complaints About the 2024 Mazda CX-90 PHEV

Consumer reports and complaints have highlighted four major areas of concern: forward collision avoidance, engine performance, electrical systems, and steering. These issues are not just minor inconveniences; they could pose significant safety hazards for drivers and passengers.

  1. Forward Collision Avoidance: Numerous drivers have reported malfunctioning collision-avoidance systems, with false positives causing the brakes to activate unexpectedly. The risk of being rear-ended due to this sudden and unnecessary braking is a valid concern, especially on busy roads or highways.
  2. Engine Issues: Many drivers have experienced engine problems, with some vehicles failing to restart after the i-stop feature engages, and others reporting a complete shutdown while in motion. This kind of unreliability in the engine system poses a clear danger, especially at high speeds.
  3. Electrical Problems: Complaints about electrical malfunctions are widespread. The Dash Electrical Supply Unit (ESU) has been known to fail, affecting vital functions like the defroster, seat belt warnings, and battery cooling systems. Given the reliance of PHEVs on complex electrical systems, these issues are alarming and inconvenient.
  4. Steering Concerns: A sudden loss of power steering assist is a particularly dangerous defect, making it difficult for drivers to control the vehicle. This kind of failure can occur without warning, putting both the driver and surrounding traffic at risk.

Recalls Highlight Safety and Reliability Concerns

The 2024 Mazda CX-90 PHEV has been subject to a staggering 10 recalls, indicating widespread problems that extend beyond individual cases. Here are some of the most notable recalls:

  • Engine Restart Failures: The i-stop feature, which automatically shuts off the engine to save fuel when idling, may prevent the engine from restarting, leading to potential stranding.
  • High-Voltage Battery Cooling System Issues: Faulty software in the ESU may lead to critical functions, including battery cooling and safety alerts, failing during startup.
  • PCM and ECM Software Malfunctions: Problems with the powertrain and engine control modules can illuminate warning lights and result in a sudden loss of drive power.
  • Inverter Software Errors: In plug-in hybrid models, improper software may lead to a total power loss when driving in electric mode.
  • Sudden Braking: The automatic braking system has a tendency to activate unexpectedly, posing a serious collision risk.
  • Power Steering Failures: An assembly issue with the worm gear can cause power steering assist to be lost without warning, making the vehicle difficult to steer.
  • Camera Malfunctions: Rear view and side cameras may not display properly due to software errors, which is a clear safety compliance issue.
  • Unexpected Engine and Motor Shutdown: Critical errors in the hybrid system software can cause both the engine and electric motor to shut down unexpectedly.
  • Pedestrian Warning Sounds: Missing software in the AVAS amplifier can result in incorrect pedestrian alert sounds, failing to meet federal safety standards for hybrid and electric vehicles.

California Lemon Law: What You Need to Know

California has some of the strongest Lemon Law protections for consumers. If your vehicle has repeated, unresolved problems that impair its use, safety, or value, you may be entitled to a buyback or replacement. Under the California Lemon Law, a car manufacturer must either replace your vehicle or refund your money if they cannot fix a substantial defect within a reasonable number of attempts.

So, what counts as a substantial defect? Issues that compromise your safety or significantly impact the car’s performance typically qualify. For instance, if your 2024 Mazda CX-90 PHEV loses power while driving, suddenly engages the brakes, or suffers from major electrical failures, these could be considered substantial defects.

If you’ve taken your vehicle in for multiple repairs for the same issue without a permanent fix, you might have grounds for a Lemon Law claim. It’s important to keep detailed records of all service visits, recall repairs, and communication with Mazda to strengthen your case.

Next Steps for Owners

If you’re dealing with repeated, unresolved issues with your 2024 Mazda CX-90 PHEV, consulting with a Lemon Law attorney can help clarify your options. California’s Lemon Law is designed to protect you from being stuck with a faulty vehicle. Given the ongoing recalls and widespread complaints, many owners may find themselves in a position to take advantage of these consumer protections.

Mazda MX-5 Miata Air Bag Control Module Safety Concern

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Mazda will soon be reaching out to the owners of specific 2016-2023 Mazda MX-5 Miata vehicles due to a software issue affecting the airbag control module. This problem, first identified in April 2023, stems from a calibration error that may result in the front airbags deploying with excessive force during a crash. As a consequence, these vehicles fail to meet the Federal Motor Vehicle Safety Standards (FMVSS) for Occupant Crash Protection, potentially endangering the safety of both drivers and passengers.

Mazda became aware of the issue during the development of new airbag sensors for future models. During this process, engineers uncovered a misconfiguration in the calibration tool used to set up the airbag control modules. This discovery prompted Mazda to reevaluate and reassess the settings in control modules from earlier vehicle models. Through a series of rigorous simulation tests, Mazda found that the collision detection sensitivity in the 2016-2023 MX-5 Miata models could lead to improper airbag deployments that do not comply with safety standards.

The problem particularly arises during minor collisions, where the airbags may deploy with a force higher than intended. This excessive force poses an increased risk of injury to vehicle occupants, especially in situations where airbag deployment should be less aggressive. Although the issue seems isolated to the MX-5 Miata, Mazda has taken steps to conduct similar tests across other vehicle models to ensure that the problem does not affect a broader range of vehicles.

To resolve this issue, Mazda dealers will perform a software update on the Sophisticated Air Bag Sensor (SAS) control module of the affected vehicles. This update is designed to re-calibrate the airbag deployment system to meet FMVSS 208 standards, ensuring that airbags deploy at appropriate force levels in the event of a collision. Mazda has scheduled owner notification letters to be mailed starting November 17, 2024, alerting owners to the recall and the necessary repairs.

Mazda’s recall number for this issue is 6924I, and the National Highway Traffic Safety Administration (NHTSA) has assigned campaign number 24V-695 to this recall. It is crucial for MX-5 Miata owners to have their vehicles inspected and repaired as soon as possible. Doing so will not only bring the vehicles back into compliance with federal safety regulations but also ensure the continued safety of all passengers in the event of an accident.

Mazda Engine Stall From Fuel Pump Failure

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Mazda is recalling certain 2018-2020 vehicles because the impeller inside the low-pressure fuel pump may crack and deform, potentially causing the fuel pump to fail.

In March 2019 Mazda received the first field report of an engine stall due to an inoperative fuel pump. A study of the pump showed that cracking on the impeller surface made the impeller more likely to deform. Further investigation found that solvent used during the manufacturing process and low-density impellers may be factors causing impeller cracking. During the test, the surface of the impeller cracked as the solvent dried over time. It was confirmed that fuel pumps produced with impellers of lower density exposed to production drying solvent for longer periods of time could experience the impeller cracking at a level that could lead to excessive fuel absorption, and could cause impeller deformation.

The Vehicles Affected Include:
2019 Mazda CX-3
2018-2019 Mazda CX-5
2018-2019 Mazda CX-9
2019-2020 Mazda Mazda2
2018 Mazda Mazda3
2018 Mazda Mazda6
2018-2019 Mazda MX-5

Fuel pump failure may result in engine no start and/or vehicle stall while driving at low speed and, in rare instances, a vehicle stall could occur while driving at higher speeds, increasing the risk of a crash. Drivers may notice this defect by a check engine light, and/or rough engine operation.

Mazda will be contacting owners of affected vehicles with instructions to return to their dealers to have the fuel pump replaced. Mazda’s number for this recall is 5321K and the NHTSA campaign number is 21V-875.

2019-2020 Mazda 3 Unintended Braking

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Mazda will be contacting owners of certain 2019-2020 Mazda 3 cars because of a programming error affecting the forward collision avoidance system.

According to the defect report, incorrect programming of the smart braking system (SBS) control software may cause the vehicle to falsely detect an obstacle and apply the brakes to avoid a collision. If the SBS is unexpectedly activated while driving, the risk of a rear end collision from the following vehicle is possible. Drivers will be warned when the defect is occurring through an audible alarm and a warning message displayed on the dash board.

Dealers will correct the problem by updating the SBS software. Vehicles with certain production dates will receive an instrument cluster software update or replacement and a replacement owner’s manual. The recall is expected to begin February 17, 2020. Mazda’s number for this recall is 4219L and the NHTSA campaign number is 19V-907.

2010-2011 Mazda Tribute FDM Fuel Leak

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Mazda will be contacting the owners of certain 2010-2011 Tribute vehicles equipped with 3.0L engines, regarding a problem affecting the fuel system. According to the defect report, the Fuel Delivery Module (FDM) could crack, causing a fuel leak and a potential fire. Mazda will notify owners, and dealers will replace the FDM flange with one that has a redesigned fuel supply port. The recall is expected to begin December 15, 2016. For more information about the problem, owners are asked to contact Mazda customer service at 1-800-222-5500. Mazda’s number for this recall is 0416J and the NHTSA campaign number is 16V-788.

2014-2016 Mazda3 Fuel Leaks

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The owners of certain 2014-2016 Mazda3 vehicles will be contacted by the manufacturer regarding a problem affecting the fuel system. Due to improper handling of the fuel tank, the affected cars may have an Inlet Check Valve (ICV) that could fail. A fuel leak in the presence of an ignition source could result in an automobile fire.

Depending on the tank lot number, dealers will inspect the ICV weld and replace the tank as necessary. Owners wanting more information about the problem are asked to contact Mazda customer service at 1-800-222-5500. Mazda’s number for this recall is 0116I and the NHTSA campaign number is 16V-684.

Mazda Cars Could Experience A Loss Of Steering

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A small number of Mazda car owners will be contacted by the manufacturer about a problem affecting the steering system. According to the defect report filed with the NHTSA, during installation of the front strut assembly to the steering knuckle, the lower mounting nuts and bolts may have been insufficiently tightened. The bolts could loosen resulting in an increasing rattle noise over time. If the problem is not repaired, the front strut assembly and steering knuckle could completely separate. Drivers could experience a significant loss of steering control, increasing the risk of a crash. Continue reading →