2020 Mazda CX-5 Complaints

UNKNOWN OR OTHER — Filed 08/10/2026

I purchased a brand new Mazda CX5 in 2020 that now has 46,000 miles on it. It is experiencing the known “ghost touch” issue in which the entertainment system and screen displayed in the center of the dashboard turns itself off and on, changes settings, shuts off navigation while driving, changes the radio from FM to AM, changes the time zone, drops hand free phone calls, initiatives hands free phone calls, does not allow me to control the volume, freezes, and more, while driving without me touching the system or even when it isn’t on. It is incredibly disruptive and distracting when driving and is a major safety problem. There was a class action lawsuit for this issue for 2016-2020 Mazda CX5s that expired in 2025 in which Mazda was required to pay up to $1750 for repairs. I was not having this issue at that time and have been told Mazda will only pay a portion to correct this issue. Considering how popular this vehicle is and the likelihood of this being cost prohibitive for many people to pay for themselves this has the potential to be a major safety problem throughout the country.

ENGINE — Filed 05/22/2026

Cylinder Head has failed at 53,000 miles. Mazda has a technical service bulletin acknowledging that this is a common occurrence with this part. They have an extended warranty for the turbo engine but not for the standard engine. Looking through online forums, there are hundreds of not thousands of these issues for this model year and engine. Mazda has clearly acknowledged there is an issue and should repair these manufacturing defects that are not normal wear and tear items.

ELECTRICAL SYSTEM — Filed 06/10/2026

The infotainment display screen on my 2020 Mazda CX-5 has suffered a severe hardware failure resulting in un-commanded inputs, commonly known as "ghost touching." While driving at highway speeds, the touchscreen constantly registers phantom touches. It actively hijacks the vehicle's computer system and cuts out my Apple CarPlay connection during trips. This morning, the ghost touching randomly turned the Apple Maps navigation volume up to the absolute maximum level without warning. This intense, sudden noise causes driver shock and distraction while in motion, creating an immediate risk of a wreck. The vehicle currently has fewer than 29,000 miles.

VISIBILITY/WIPER — Filed 06/08/2026

Read windshield just shattered while driving down the highway. No object hit the windshield. On I-95 near PHL airport, near exit for Rt 420

ELECTRICAL SYSTEM,UNKNOWN OR OTHER — Filed 10/20/2003

The vehicle infotainment system including the touchscreen display and Connectivity Master Unit malfunctioned. The touchscreen operates without driver input, the system freezes or glitches, audio activates unexpectedly, and phone functions behave erratically. The vehicle and components are available for inspection upon request. While the vehicle was being driven, the system initiated actions without driver input including unintended phone calls including calls to 911, sudden unexpectedly loud radio or audio volume, screen freezing, and loss of navigation. These events caused driver distraction and a startle effect while the vehicle was in motion, increasing safety risk to vehicle occupants and others on the road. The issue is ongoing intermittent and reproducible during normal driving conditions. The vehicle was presented to an authorized dealer multiple times. A software update was performed in an attempt to correct the issue, but the condition continued. The dealer advised that replacement of infotainment components such as the CMU or display may be required. The vehicle has been inspected by an authorized dealer on multiple service visits. The issue was also reviewed by the manufacturer customer experience case management team which acknowledged understanding of the malfunction but declined repair assistance. No police or insurance inspections have occurred. No warning lights or messages appear before the malfunction. Symptoms occur without warning and include random touchscreen activation, system freezing or rebooting, unintended phone dialing, and unexpected loud audio. The issue began after purchase and has continued despite repair attempts. Similar infotainment malfunctions including ghost touch behavior, screen freezing or rebooting while driving, unintended audio behavior, and dialing issues have been documented in manufacturer service bulletins affecting comparable vehicles, indicating this issue is not isolated.

AIR BAGS,SEAT BELTS — Filed 04/01/2026

Air bag light is flashing in the dashboard. It says passenger air bag off. Driver seatbelt doesn't always click when trying to fastent seatbelt. I have to try multiple times until it clicks.

ENGINE,FUEL/PROPULSION SYSTEM — Filed 02/25/2023

The car has signs of current recall in other Cx-5 Models. Hesitation with acceleration or driving at high speed, reduced power, not responding appropriately when accelerating or would accelerate on its own, strong smell of gas after the car has been driven and is parked. I know there is currently a recall for a gas pump failure. There is no engine light on.

SERVICE BRAKES,FORWARD COLLISION AVOIDANCE — Filed 01/27/2026

While driving on the highway in traffic, I was applying the brakes (slowly and smoothly) and moving with the flow of traffic when the SBS system activated the brakes harshly and slammed me to a stop without reason. In addition to throwing me forward against my seatbelt, it also resulted in the car behind me rear-ending me. I did not hit the car ahead of me, since I was far enough behind them BEFORE the smart brake support engaged, but the feature caused an accident that could have been avoided.

UNKNOWN OR OTHER — Filed 04/01/2026

I am reporting an ongoing defect with the infotainment system in my 2020 Mazda CX-5, involving ghost-touch inputs, system freezing, and random reboots. These issues began around the second year of ownership and have progressively worsened. The system constantly registers inputs that are not being made (ghost-touch), changes settings on its own; and occasionally- reboots while operating the vehicle. This makes it difficult or impossible to reliably use essential vehicle functions such as navigation, communication, and audio controls. The issue is particularly concerning because it creates a driver distraction and potential safety risk, as the system behaves unpredictably and requires attention while driving to manage or disable unintended inputs. I reported these issues multiple times to an authorized Mazda dealership while the vehicle was still under warranty. However, I was told no issue could be found or that software updates would resolve the problem. These updates did not fix the issue. On August 9, 2025, another system update was performed under the Mazda Connect Class Action Settlement, but the problem persists. The dealership is now requiring a paid diagnostic fee before proceeding further, despite the known nature of this defect. Based on my research and widespread owner reports, this issue is commonly associated with infotainment system defects, including screen delamination and/or failure of the Connectivity Master Unit (CMU). I am submitting this complaint to document the defect and request further review, as it affects safe operation and driver attention.

STEERING — Filed 03/14/2026

The steering column in this car has a known defect in the steering column nut resulting in knocking/rattling/clunking. Mazda is aware of this issue and has redesigned the steering column and issued multiple TSBs for specific models, years, and even VINs. Mazda is not classifying this a a safety issue to avoid recall but if the part is to fail it can result in loss of vehicle control and a crash. The steering column is main component necessary to have control over the car and the direction it travels. I've called my dealership and Mazda corporate who both refuse to fix the issue even though my car is under an extended warranty. TSB 06-001/24 previous TSB 06-004/23.

ELECTRICAL SYSTEM,SERVICE BRAKES,ENGINE — Filed 02/15/2026

The Smart Brake Support system malfunctioned while driving. The vehicle began shaking and lost power, requiring excessive throttle to move. The car hesitates and may not accelerate normally, creating a dangerous situation in traffic. Warning lights appeared on the dashboard and the vehicle became unsafe to operate. The issue occurred shortly after purchase and was reproduced multiple times. The dealer inspected the vehicle but refused to provide a written diagnosis or repair timeline. The vehicle is unreliable and poses a risk of sudden loss of control or rear-end collision.

POWER TRAIN — Filed 02/15/2026

Started smelling burning oil in 2020 Mazda CX-5 non turbo with 34,000 miles. Auto shop states it is a cracked cylinder that will cost over $7,000 to repair. A Google search shows it is a known issue but Mazda has not extended the warranty for non-turbo models.

POWER TRAIN — Filed 12/19/2025

The contact owned a 2020 Mazda CX-5. The contact stated that while driving under 45 MPH, the TCM received a false data sensor warning, causing the vehicle to enter LIMP Mode. The contact stated that during the failure, the smart brake feature, Adaptive Cruise Control, and other unknown ADS features and warning lights were illuminated. The contact stated that the failure with the ADS system prompted the vehicle to come to a complete stop while driving 45 MPH. The contact parked and turned off the vehicle to troubleshoot the ECU after the failure had occurred. The contact restarted the vehicle, and the adaptive cruise control warning light, smart brake feature, and ADS radar features returned. The vehicle was not repaired. The manufacturer was notified about the failure. The failure mileage was 140,000.

POWER TRAIN — Filed 10/17/2025

Vehicle suffering from Mazda TSB 05-005/23 Chirping noise from Transaxle on 3rd to 4th gear upshift. Vehicle diagnosed by dealership as needing new Transaxle on 17OCT25. Diagnosis stated issue started ~32k miles.

VEHICLE SPEED CONTROL,UNKNOWN OR OTHER,SERVICE BRAKES — Filed 09/18/2024

The vehicle accelerated on its own, while I was parking. My foot was on the brake when the vehicle just took off. It continued to accelerate until a building stopped it. I continued to brake but the vehicle did not stop. Once the vehicle collided with building, saw on the digital read out the "Brake System Malfunction" and then Camera Malfunction. The vehicle was towed from the site and the insurance adjuster has sent me word that the vehicle is a total loss.

SERVICE BRAKES — Filed 09/02/2023

On Septmber 2, 2023 the car had been on a 4 hour road trip. I came into the driveway, left the car running in Park with the brakes on (listening to music while I cleaned the car out) it was idylling for about 5 minutes. I went to the drivers side door, which was open and reached in to turn the car off using the start/stop button. Before I could turn the car off, it started backing up and the door ran over me. The car was definitely in Park and the Brake was on. There was no reason for the parking brake to disengage.

STRUCTURE,BACK OVER PREVENTION — Filed 06/14/2023

The rear camera and warning system has failed numerous times. On one occasion I hit a vehicle because of the failure. Also, the windshield has a leak that sometimes is like a waterfall causing serious visibility problems.

FORWARD COLLISION AVOIDANCE — Filed 05/18/2023

I was traveling behind a propane truck, that was going to make a right turn. I disengaged the adaptive cruise control by tapping on the break. I began coasting to a stop, suddenly the car began accelerating again with no warning. I was forced to make the turn with the propane truck and side swiped the truck in the process.

AIR BAGS — Filed 09/17/2022

Airbags did not deploy when I crashed into a guard rail dragging for 40-50 feet.

VEHICLE SPEED CONTROL,SERVICE BRAKES — Filed 03/28/2021

I WAS PARKED AT A FAST FOOD RESTAURANT THAT HAD AN OUTDOOR KIOSK FOR PAYMENT. I GOT OUT OF MY CAR TO PAY AND GOT BACK IN. AFTER ABOUT A MINUTE OR TWO MY CAR ACCELERATED FORWARD, GOING OVER A SLOPED CURB AND DOWN A SHORT LOW GRADE HILL, HITTING A POLE. I WAS CONFUSED TO HOW THE CAR WOULD GO FORWARD BECAUSE I WAS IN PARK THE WHOLE TIME.

SERVICE BRAKES — Filed 12/05/2020

TRY TO PART WHEN I STEP ON THE. BREAK, DID NOT STOP KEEPING RIGHT ON GOING.

ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM — Filed 11/02/2020

MY 2020 MAZDA CX-5 WAS 2 DAYS OLD AND THE BATTERY WAS COMPLETELY DRAINED AND HAD TO BE TOWED TO THE DEALER. I PICKED IT UP AND THEY DID NOTHING TO THE BATTERY. THEY TOLD ME NOTHING WAS WRONG AND THEY REPLACED THE KEY FOB BATTERY. TWO MORE DAYS AFTER THAT I PARKED IT IN MY GARAGE AND PUSHED THE BUTTON TO TURN IT OFF. APPARENTLY IT DID NOT TURN OFF AND COME MORNING, I HAD SIGNIFICANT CARBON MONOXIDE POISONING AND WAS HOSPITALIZED FOR 4 NIGHTS. MY CAR WOULD NOT START AGAIN AND THE ODD THING WAS THAT THE BATTERY WAS DRAINED AGAIN AND THERE WAS STILL GAS IN IT. MY LOCAL MAZDA DEALER REFUSES TO HELP ME AND I AM TRYING TO CONTACT MAZDA'S MAIN NUMBER.

ELECTRICAL SYSTEM,EXTERIOR LIGHTING,SERVICE BRAKES — Filed 09/29/2020

PURCHASED BRAND NEW 2020 MAZDA CX-5 ON SEPT 25, 2020. ON SEPT. 29, 2020 WITH < 500MI: WHILE TRAVELING APPROXIMATELY 45 MPH ON COUNTY ROAD, PRESSED BRAKE PEDAL AND THE PEDAL DID NOT MOVE. SEVERAL MALFUNCTION LIGHTS FLASHED INCLUDING "POWER STEERING MALFUNCTION", "SMART CITY BRAKE SUPPORT MALFUNCTION". REPEATEDLY SLAMMED ON THE BRAKE PEDAL AND IT DID NOT MOVE AT ALL. TRIED TO SWERVE TO AVOID A VEHICLE BUT THE STEERING WAS UNRESPONSIVE. IMPACTED A VEHICLE AT A RED LIGHT. MAZDA SERVICE SAID THAT THERE WAS NO INDICATION THAT THE BRAKE WAS ENGAGED BEFORE THE IMPACT EXCEPT FOR A "HARD BRAKE EVENT" WHICH BASED ON THE CDR DATA WAS PROBABLY THE IMPACT AVOIDANCE SYSTEM BRAKING THE VEHICLE. AS AN ENGINEER FAMILIAR WITH THIS TYPE OF SYSTEM BUT NOT THIS PARTICULAR SYSTEM SPECIFICALLY, I SUSPECTED A LOW VOLTAGE EVENT THAT KNOCKED OUT THE BRAKE BOOSTER AND POWER STEERING. VEHICLE WAS RETURNED FROM THE REPAIR SHOP TODAY OCT 28, 2020. HEADLIGHTS BEGAN TO FLICKER, AGAIN AN INDICATION OF LOW VOLTAGE OR FAULTY WIRING. I HAVE TAKEN VIDEO OF THE FLICKERING, I HAVE OBTAINED THE CDR REPORT MAZDA REFUSED TO PROVIDE ALTHOUGH I REQUESTED TO SEE IT, AND THE SERVICE REPORT INDICATING MASS AIRFLOW & VACUUM CODES, BOTH CAUSED BY LOW VOLTAGE EVENT.

SERVICE BRAKES — Filed 09/17/2020

BOUGHT A MAZDA CX5 JUNE 2020 AND IT WAS INVOLVE IN A ACCIDENT SEPT 17TH 2020 DO TO BRAKE FAILURE. MY MOTHER WAS DRIVING THE VEHICLE AND ATTEMPTED PARKING IN A APARTMENT COMPLEX WHEN THE VEHICLE FAILED TO STOP AND COLLIDED WITH THE FACILITY 20FT IN FRONT OF THE PARKING SPACE. AT THE INCIDENT, I THE OWNER, FOUND 3 DAMAGE ROTORS WERE THE FLAW CAME FROM HEAVY GRINDING AT THE CALIBER (SEE ATTACH PHOTOS). WITHIN THE CALIBER'S ALLOY YOU CAN ALSO SEE THE CHIPPED ALLOY PRODUCED FROM A FLAW & THE ALIGNMENT OF WHERE IT GRINDS THE ROTOR (SEE ATTACHED PHOTOS). A WITNESS STATED SHE WAS PRESENT DURING THE TIME OF THE COLLISION AND A POLICE REPORT WAS TAKE FROM THE WITNESS. I CAN PROVIDE PLENTY OF MORE PICTURES AND VIDEOS TO EXPLAIN THE GEOGRAPHIC AND DEMONSTRATE VIA VIDEO THE FLAWS AT THE COLLISION. I'VE ATTEMPT CONTACTING MAZDA FOUR TIMES BUT THEY CONTINUE TO PLACED THE BLAME ON ME "FOR BAD DRIVING DAMAGING ITEMS THEY CONSIDER TEAR AND WEAR PRODUCTS (ROTORS AND CALIBERS)" I EXPLAINED I ONLY HAD THE VEHICLE FOR 3MONTHS AND ITS THREE ROTORS WITH SIMILAR DAMAGE. YET THEY TOLD ME MY INSURANCE MUST FIND THEM AT BLAME. MY INSURANCE APPRAISER STATED THEY WILL NOT GO TO THAT DISTANCE; THEY JUST FIX OR PAY OFF THE LOAN. I AM FUSTRATED! YOU ALL ARE MY LAST HOPE! GOING THROUGH MY INSURANCE WILL CAUSE ME A DEDUCTABLE AND AT FAULT BLAME. GOING THROUGH MAZDA IS INSULTING THEIR PRODUCT, YET I FIND THIS FRIGHTING BUT IT'S THEIR RESPONSIBILITY TO CONDUCT FURTHER RESEARCH TO WHY THE ROTOR/CALIBER WENT BAD IN SUCH A SHORT SPAN. EXPLAINING! EVEN IF I AM TO BE BLAMED, FOR THE INCIDENT. WHAT ABOUT THE PRODUCT? I ONLY OWNED THE VEHICLE FOR THREE MONTHS. WITHIN A LITTLE OVER 3,000 MILES. PLEASE HELP

SERVICE BRAKES — Filed 09/01/2020

SUDDEN BRAKING CAUSED BY AUTOMATIC BRAKING SYSTEM. ON SEPT 1, 2020, I WAS DRIVING DOWN A NEIGHBORHOOD STREET, GOING ABOUT 30 MPH, AND A CAR IN FRONT OF ME WAS TURNING. I WAS IN NO DANGER OF HITTING THE CAR IN FRONT OF ME; HOWEVER, MY 2020 MAZDA CX-5 SUDDENLY BRAKED AND MADE A LOUD NOISE. GRANTED, THIS CAR WAS NEW TO ME AND I HADN'T EXPERIENCED THIS BEFORE, BUT I WAS COMPLETELY SURPRISED GIVEN AN ACCIDENT WAS NOT IMMINENT. THIS SUDDEN BRAKING CAUSED MY HEAD TO SWING FORWARD AND BACK RESULTING IN NECK, SHOULDER, AND BACK PAIN. ALSO, IT RESULTED IN AN INCREASED HEADACHE. UPON RETURNING HOME, I TURNED THE SUDDEN BRAKING SAFETY FEATURE OFF. ON SEPT 4, 2020, I HAD A VIDEO CALL WITH MY PCP WHO ADVISED ME TO GO TO THE URGENT CARE. THE URGENT CARE DOCTOR PRESCRIBED MUSCLE RELAXERS AND, BASED ON A PREVIOUS NECK CONDITION, ORDERED A MRI AND FOLLOW-UP WITH NEUROSURGEON. THE EXTENT OF THE INJURY IS UNKNOWN AT THIS TIME BUT THE URGENT CARE DOCTOR ENCOURAGED ME TO FILE A SAFETY REPORT.