2019 Mazda Mazda3 Common Problems & Defect Telemetry
Authoritative defect intelligence synthesized from 74 verified NHTSA owner complaints, 6 federal safety recalls, and interquartile failure mileage telemetry.
The 2019 Mazda Mazda3 receives a 5/10 MazicBay Reliability Index based on 74 verified NHTSA federal complaints and 6 safety recalls. The primary reported failure mode is Service Brakes, ABS Actuator & Master Cylinder Reports with a median failure point at 55,000 miles (IQR: 35,000 – 75,000 mi). Out-of-warranty repairs benchmark at $350 – $1,100 .
24.7 complaints / 10k sold
Verified US federal records
Crash, fire & stall audit
6 Active / Free Remedies
Top Reported Problem Clusters (7)
Service Brakes, ABS Actuator & Master Cylinder Reports
- Spongy or hard brake pedal travel
- ABS / Brake warning light illuminated
- Extended stopping distance / pedal vibration
“To whom it may concern, I was on a back road late in the evening not far from home ... and a small deer ran into the road. I needed to brake to avoid hitting the deer. After breaking, a Brake System Malfunction warning message and i-ACTIVESENSE System Malfunction warning illum...”
“The contact owns a 2019 Mazda Mazda3. The contact stated while driving 35 MPH, the brake warning light illuminated and the vehicle would brake suddenly without the driver depressing the brake pedal. The failure had become recurring. The contact had taken the vehicle to a local...”
“was driving in a car park and it randomly braked thinking someone was infront of me but there was nothing and the car behind me almost rear ended. Already fixed the recall last year according to Mazda. This is extremely scary and not sure what would have happened if this was o...”
Engine Stalling, Oil Consumption & Cooling Defect Reports
- Engine sudden stall / hesitation while driving
- Abnormal oil burning / consumption
- Check Engine Light (MIL) flashing
- Engine overheating / coolant loss
“The driver-side sun visor has suffered an internal mechanical failure where the internal plastic tension components have cracked under normal use. As a direct result, the sun visor will not stay up and randomly drops down completely unprompted while the vehicle is in motion. T...”
“This began on 10.19.24 and as of 11.03.24 is ongoing and not repaired. On 10/19/24, while I was at a red light, the RPMs on my vehicle went up and down repeatedly. After I arrived at my destination, which was about a half mile away, and put the car in park, the RPMs repeatedly...”
“I had an oil change back in April of 2024. I have been driving the last couple of days and after about 15 minutes my low oil light comes. this car has 58.800 miles on it. I stopped at a oil express to see if I was low on oil but they said I was at full. I also checked to see i...”
Electrical Parasitic Drain, Infotainment & Harness Reports
- Unexplained battery drain after sitting overnight
- Infotainment display / instrument cluster blackouts
- Accessory malfunction / alternator fault warnings
“A few weeks ago the following error message popped up on my dashboard: “Airbag Malfunction. Have vehicle inspected”. This message came and went intermittently whenever I had a passenger in the vehicle. I scheduled and appointment at my local Mazda dealership service center and...”
“This began on 10.19.24 and as of 11.03.24 is ongoing and not repaired. On 10/19/24, while I was at a red light, the RPMs on my vehicle went up and down repeatedly. After I arrived at my destination, which was about a half mile away, and put the car in park, the RPMs repeatedly...”
“The vehicle's battery has gone dead on several occasions since replacing the OEM battery. The OEM battery which was approximately 3 years old, also had gone dead, prompting its replacement. The battery has gone dead within 1-2 days of not using the car. Charging the battery by...”
Transmission Hesitation, Hard Shifting & Slipping Reports
- Hard gear shifts / delayed engagement into Drive/Reverse
- Transmission shudder / jerking under acceleration
- Transmission slipping between gears
“The car has had a lot of issues. The inside driver side glass for the display dash fogged up and had to be replaced. The first replacement didn’t fix it and I had to threaten legal action to get Mazda to replace the glass a second time before it finally resolved the issue. The...”
“I noticed oil was leaking and my engine was steaming after driving. My mechanic found a crack in a cylinder after watching YouTube and finding out Mazda has this issue.”
“The contact owns a 2019 Mazda Mazda3. The contact stated while driving 40 MPH, the vehicle lost motive power with the vehicle network malfunction, vehicle inspection”, the check engine warning light and all the safety features were disabled, and the windshield wipers turned on...”
Airbag Occupant Detection & Inflator Defect Reports
- SRS Airbag warning lamp illuminated
- Passenger occupant classification sensor failure
- Seat belt retractor lockup
“1. What component or system failed or malfunctioned, and is it available for inspection upon request? The airbag system, specifically the curtain airbags and related airbag control components, malfunctioned by deploying spontaneously without any collision or impact. The vehicl...”
“The seat belt stopped retracting and no longer works, it was reported directly to the Mazda agency, but the warranty was not valid. The dealer said that the tensioners no longer work and the seat belt needs to be replaced.”
“For the seat belt it does not retract back and there was no issue before. It suddenly stopped working and all of the seatbelt is out. This is a safety issue for anyone sitting in the front passenger seat. For the unknown part the button in the trunk to pull the back passenger ...”
Electric Power Steering Assist & Suspension Noise Reports
- Sudden loss of electric power steering assist
- Steering wheel pull or highway wander
- Clunking / knocking noise over bumps
“The driver-side sun visor has suffered an internal mechanical failure where the internal plastic tension components have cracked under normal use. As a direct result, the sun visor will not stay up and randomly drops down completely unprompted while the vehicle is in motion. T...”
“I noticed oil was leaking and my engine was steaming after driving. My mechanic found a crack in a cylinder after watching YouTube and finding out Mazda has this issue.”
“Cracked cylinder head causing oil leak. Confirmed by Mazda Dealership. Vehicle has always had routine maintenance and remote start used to warm engine prior to driving. No warning lights appeared to alert driver prior to noticing issue- took it in because driver could smell bu...”
Fuel Pump Pressure Loss & Fuel Delivery Defect Reports
- Sudden loss of propulsion power at highway speeds
- Extended engine cranking / failure to restart
- Fuel odor near fuel tank / engine bay
“Shown engine light on dashboard and Car was struggling to run while pressing the gas, took to the mazda dealership and they told low pressure and high pressure fuel pump needs to be replaced.”
“Dealer service tech stated the high pressure and low pressure fuel pumps failed and needed replaced. My car was not included in the recall regarding fuel pumps for Mazda, so the dealer would only cover 50 percent of the cost. Service tech and warranty service rep stated that M...”
Official NHTSA Safety Recalls (6)
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
Summary: Mazda North American Operations (Mazda) is recalling certain 2019-2020 Mazda3 vehicles. The Smart Brake System (SBS) can falsely detect an obstacle while driving, activating the automatic emergency braking system and suddenly stopping the vehicle.
ENGINE
Summary: Mazda North American Operations (Mazda) is recalling certain 2018-2019 CX-5, Mazda6, and 2019 Mazda3 vehicles. A software error in the powertrain control module (PCM) may cause the engine to stall.
SEATS:FRONT ASSEMBLY:HEAD RESTRAINT
Summary: Mazda North American Operations (Mazda) is recalling certain 2019 Mazda3 vehicles. The seat cover material on both front seats may interfere with the head restraint lock release button, causing it to stick in the release position and not allow the head restraint to lock into place.
VISIBILITY:GLASS, SIDE/REAR
Summary: Mazda North American Operations (Mazda) is recalling certain 2019 Mazda3 vehicles equipped with manual dimming mirrors. The adhesive between the interior rearview mirror and the housing may not be properly bonded, allowing the mirror to detach from the housing. Note: Vehicles equipped with auto dimming mirrors are not affected by this recall.
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
Summary: Mazda North American Operations (Mazda) is recalling certain 2019 Mazda3 vehicles. Due to incorrect programing, the passenger air bag deactivation indicator light may erroneously turn off although the passenger air bag is deactivated. In addition, the seat belt status indicators for both the front passenger seat and/or rear seats may erroneously turn off although the front passenger and/or rear seat belts are unfastened.
WHEELS:LUGS/NUTS/BOLTS/STUDS
Summary: Mazda North American Operations (Mazda) is recalling certain 2019 Mazda3 vehicles. The lug nuts on all four wheels may loosen, potentially resulting in a wheel detaching from the vehicle.
Pre-Purchase Inspection Checklist for 2019 Mazda Mazda3
Before purchasing a used 2019 Mazda Mazda3, perform the following targeted inspections based on reported federal defect patterns:
Scan the OBD-II port under the dash for pending freeze-frame codes (e.g. P0300 misfires, P0087 fuel rail pressure, P0420 catalytic efficiency).
Test vehicle at low-speed stop-and-go and highway merges. Check for delayed reverse engagement or gear shift shudder between 2nd and 3rd gears.
Verify that all 6 NHTSA safety recall campaigns have been performed by an authorized dealership using the VIN.
Ensure the instrument cluster, center screen, and auxiliary charging ports operate with stable 12.0V–14.4V alternator voltage.
Defect & Reliability Q&A: 2019 Mazda Mazda3
Is the 2019 Mazda Mazda3 a reliable used car?
The 2019 Mazda Mazda3 earns a 5/10 MazicBay Reliability Index based on 74 federal owner reports. Vehicles maintained under factory service schedules exhibit strong longevity past 150,000 miles.
What is the most frequent defect reported on the 2019 Mazda Mazda3?
The leading complaint category is Service Brakes, ABS Actuator & Master Cylinder Reports, with a median failure point around 55,000 miles (IQR: 35,000 – 75,000 mi).
Are there free recall repairs available for the 2019 Mazda Mazda3?
Yes, the NHTSA records 6 safety recall campaign(s) for this model year. All safety recalls are performed 100% free of charge by authorized franchise dealerships regardless of vehicle warranty status.