2019 Mazda Mazda6

Coolant Control Valve was not working per recall !! They put in a dummy plug and it did not fix which should have . Based on your research in using the dummy plug . I asked the dealership could be the dummy plug installation and asked if there waa a system update .. I hope you can help me get car back on road for the coolant control valve !! Florence ky Mazda said. They could not do nothing else !! Please help resolve ty

NHTSA ID

11744513

Incident

Jun 15, 2026

Dear NHTSA, I am writing to submit a safety complaint regarding my 2019 Mazda 6 GTR. Below are the details of the issue: Vehicle Information: Make: Mazda Model: 6 GTR Year: 2019 VIN: [XXX] Problem Description: My vehicle began to overheat while driving. The vehicle has approximately 35,000 miles and has been meticulously maintained at authorized Mazda dealerships. Mazda Liberty is now asking me to pay approximately $10,000 for a new engine, while Mazda warranty declined to provide support, as I am two months past the warranty period. I have discovered that there are numerous complaints similar engine issues with Mazda vehicles, specifically related to coolant leaks and cylinder head cracks. Incident Details: Date of Incident: [XXX] Mileage at Incident: 35,000 miles Symptoms: Overheating, engine seizure Actions Taken: Topped up coolant, visited local garage and authorized dealership I believe this issue poses a significant safety risk, and I am seeking NHTSA's assistance in investigating this matter. Thank you for your attention to this serious issue. Sincerely, [XXX] Cell: [XXX] Email: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11628947

Incident

Nov 18, 2024

The forward smart city brake malfunction front radar sense malfunction caused my car to slow down on the express with the check engine light blinking.

NHTSA ID

11488405

Incident

Sep 6, 2022

The paint is chipping excessively and will lead to extensive body damage at the rate it is chipping and exposing the metal underneath. I am taking the vehicle in to the dealer next week to show them the damage. The chipping issue has already been documented on a Bill of Lading from a transporter who shipped the car to me. I will upload it below.

NHTSA ID

11421635

Incident

Apr 14, 2021

AFTER PURCHASING A 2019 MAZDA6 IN JULY 2019, THERE HAVE BEEN MULTIPLE OCCASIONS IN WHICH I START THE CAR AND THE DISPLAY SCREEN FREEZES OR IS BLACK, NOT DISPLAYING ANYTHING. AT THE SAME TIME, THE CONTROL BUTTONS ON THE STEERING WHEEL DO NOT WORK. I'VE ALSO EXPERIENCED A LONG DELAY IN RESPONSE AFTER PRESSING CONTROL BUTTONS ON THE STEERING WHEEL. ALL OF THESE ISSUES HAPPEN RANDOMLY AND WILL CONTINUE WHILE DRIVING OR STOPPED.

NHTSA ID

11271555

Incident

Oct 22, 2019

Mileage

1,500 mi

I WAS DRIVING TO WORK THIS MORNING AND STEERING WHEEL WAS TURN TO RIGHT TO KEEP STRAIGHT AND FELT LIKE SOMETHING WAS LOOSE. I DROVE HOME AND HIT THE BRAKES AND CAR VEERED TO THE RIGHT HARD. THE CAR DID NOT FEEL RIGHT WHEN I GOT HOME I FOUND PASSENGER FRONT TIRE WAS NOT STRAIGHT AND WAS CROOKED. I TOOK TO MEINKE AND THEY FOUND ENTIRE UNDER CARRIAGE OF ENGINE RUSTED BADLY AND LOOKED LIKE SWISS CHEESE THEY STATED I WAS LUCKY TO GET THERE AND THAT THIS HAPPENS A LOT ON THIS MAKE AND MODEL OF CAR AND THAT IT WOULD BE $1200 TO $1500 TO FIX. *BF

NHTSA ID

11221731

Incident

Jun 19, 2019

Mileage

104,500 mi

This SA supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-061/25 12/17/25 DESCRIPTION If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by asking if any aftermarket devices have been installed. Aftermarket devices may be the cause of the electrical concern. Below are a few examples of unusual electrical concerns caused by aftermarket devices. Examples: 1. Devices connected to the DLC-2 (battery discharge/DTC stored) 2. Devices plugged into the 12V outlet 3. GPS tracking device (engine no start/battery discharge) 4. Dash cam (DTC stored) 5. Non-certified USB cable (Apple Carplay™/ Android Auto™ will not connect) 6. Over-sized wheels/tires (incorrect GPS location) 7. DTC C0023:14 8. Decorative trim and/or cover on the START/STOP ENGINE button Example 1: Some electrical devices connected to the DLC-2 connector by insurance or mobile phone companies may cause: Battery discharge. The device may disrupt the CAN system battery saver mode. • IDS/MMDS will not communicate with the vehicle due to poor DLC-2 connection. The aftermarket device may cause DLC-2 female terminals to spread open.

This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 09-012/21 12/13/21, 06/10/21 and 04/27/21 DESCRIPTION Some customers may experience all of following symptoms: The door lock/unlock operation will not work using the remote transmitter button. 1. The door lock/unlock operation will not work using the door lock/release touch sensor. 2. The engine will not start using the ignition switch. 3. The transmitter operates by itself. 4. The key battery drains faster than usual. 5. Symptoms 1-3: This may be caused when excess load is applied to the remote transmitter, deforming the electrical terminals and creating poor contact with the battery. To eliminate this concern, the structure in the remote transmitter has been modified to reduce the deformation of the electrical terminals. Symptom 4-5: This may be caused when excessive load is applied to the remote transmitter, creating a gap around the gasket where moisture enters and corrodes the circuit board which in turn drains the key battery faster than usual. To eliminate this concern, the thickness of the case wall on the gasket mounting surface has been increased and the bonding strength of the components has been improved to prevent deformation. REPAIR PROCEDURE • If the battery is bad or installed incorrectly, replace the battery and/or install it correctly. • If the remote power saving function is off and the battery is good and installed correctly, replace the defective remote transmitter with a modified one according to the instructions on MGSS (IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING). NOTE: DO NOT replace other remote transmitter(s) for the vehicle if they not experiencing an issue.

This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 01-008/23 06/05/23 Some vehicles may exhibit rattling noises from the engine compartment and oil leakage from the drive belt auto tensioner. This may be caused by insufficient sealing at the drive belt auto tensioner damper when the auto tensioner fully operates under both high ambient temperature and high load conditions. To eliminate this concern, the shape of the drive belt auto tensioner damper has been changed. REPAIR PROCEDURE If the tensioner is found to be "No Good" after completing the Drive Belt Auto Tensioner Inspection, replace it with a modified part according to the instructions on MGSS online:

DESCRIPTION Some vehicles may require the replacement of a damaged VIN plate or vehicle certification label. To obtain a replacement VIN plate (bulkhead-mounted and visible through the lower-left area of the windshield), contact DAG (Dealer Assistance Group) using VIN Plate Request Form available on One Mazda. To obtain a replacement vehicle certification label (located on the B􀀀pillar or front door), contact your assigned DSM (District Service Manager) to place the order. If DSM contact information is not available, refer to the Dealer & Field Contact Directory.

This Service Alert supersedes the previously issued SA listed below: The changes are noted in Red. SA-011/24 02/12/24, 06/06/24, 07/29/24 DESCRIPTION Mazda has developed factory recommended scheduled maintenance services that support all major vehicle systems. Mazda recommends dealers follow the scheduled maintenance tables as cited in the vehicle-specific workshop manual or owner's manual. Services performed outside of Mazda's factory scheduled maintenance are not recommended. These services are unnecessary and create unneeded expenses for your customers. SCHEDULED MAINTENANCE Refer to the applicable Workshop Manual or Owner's Manual for vehicle -specific manufacturer scheduled maintenance. Workshop Manual - Refer to section 00-00 SCHEDULED MAINTENANCE. Owner's Manual - Refer to section 8 Maintenance and Care. b. Note: Please refer to the information below outlining the services not included in Mazda's Factory Scheduled Maintenance: IMPORTANT: Recommending fluid flushes when not necessary can lead to customer confusion and dissatisfaction. Fluid flushing for preventive maintenance purposes is strongly discouraged, unless otherwise specified in a published procedure (Owner’s Manual, Workshop Manual, Technical Service Bulletin, etc.).

This Service Alert supersedes the previously issued M-Tip(s) listed below. The changes are noted in Red text. MT-002/19 09/30/19 and 12/19/19 DESCRIPTION If an engine assembly is replaced after a catastrophic internal mechanical failure, clean the intake manifold internally before installing a replacement engine assembly. If the intake manifold is not cleaned properly, the replacement engine may fail prematurely. Metallic debris from the old engine (with catastrophic internal mechanical failure) may rest inside the intake manifold. When the new engine assembly is installed, debris in the intake manifold will be ingested into the new engine and cause internal damage. Clean the intake manifold internally to remove any debris from old engine before installing the new replacement engine assembly. If the intake manifold cannot be properly cleaned internally, replace it.