2021 MAZDA CX-5 Complaints

Bought the car brand new in May 2021, did a first oil change at around 4K miles due to the fact the car uses conventional 5w-30 oil and not synthetic oil. At around 7k miles the low oil engine light came on. Checked the dipstick and it was low. Added a quart of oil to hold me over until the next available appointment. Dealer could not find any leaks, they completed a oil change again. I went in again at 11K for another oil change. Had no problems. A few days ago at 14K low engine light came on, this time I turned the car off. Let it sit over night. Made an appointment with the dealer for the next day. Turned the car on the next morning, light went away. Both times I got a notification from Mazda connect services alerting me of these problems. (Please see attached) I brought the car in on 12/22/21 and was told the car was low on oil and nothing else could be done until Mazda comes up with a solution.

2021 Mazda cr-5 Automatic rear hatch comes open on its own. This has happened 6-7 times. I make sure the car is locked and have come back to parking lot to find the hatch open. I have even locked the car and when I have walked to door of Walmart (long way off) and look back the hatch is not open. When I come back out, the rear hatch is open. I took to dealership and they could not rectify the problem.

ON Nov 4th my Mazda CX5 alerted me to low engine oil level by illuminating dashboard symbol and app notification. I attached a file containing an explanation of the issue, emails directed to Mazda corporation and Napelton Mazda in Naperville IL. I also attached screenshots of the in app notification and the Mazda TSB which I had to find on my own because Mazda coporate and both the selling/servicing dealer would not acknowledge the oil burning issue.

The contact owns a 2021 Mazda CX5. The contact stated that the fuel gauge was not operating properly. The vehicle was taken to the dealer and the dealer reprogrammed the Transmission Control Unit (TCU). However, the failure recurred. After taking the vehicle back from the dealer, the contact was driving at an undisclosed speed, when the windshield wiper inadvertently engaged, and several unknown warning lights illuminated. Additionally, the headlights inadvertently turned off and the steering wheel pulled the contact's arm down and the vehicle went to the median, running over a metal pole. The cruise control would not deactivate, and the brakes would not engage immediately. No injuries were sustained. A police report was filed. The vehicle was taken to another dealer, Hiley Mazda of Huntsville (6934 Hwy 72 W, Huntsville, AL 35806). The dealer measured the fuel level resistance range of the fuel level sender and informed the contact that the fuel level sending unit needed replacement. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 1,629.

The design of the remote control is poor. Placement of the buttons on the side and the light pressure needed to activate the unlock for the trunk has led to it opening unexpectedly. It can open and strike a pedestrian when you did not intend to activate the powered trunk open feature. It could also open when near an object and damage the trunk b/c of how sensitive the remote buttons are. This has also led to the doors unlocking b/c of placement and light pressure needed to activate. On one occasion the button was pressed accidentally and the trunk was partially open as I backed up.

Primary hood latch released while driving. It happened at night in heavy rain and was not seen. This vehicle appears to lack a hood open warning indicator. I am unable to find it in the manual. There is an indicator for doors and back hatch but not the hood. Had the secondary latch failed, this could have had a catastrophic outcome.

The contact owns a 2021 Mazda CX5. The contact stated that after the vehicle was serviced at the dealer under Manufacturer's recall number: SSPC7 for the TCU, the contact was driving at an undisclosed speed, when the "Keyless ignition malfunction" warning light was illuminated. The contact was able to drive to his residence, but when he attempted to turn off the vehicle, the vehicle would not turn off. The contact had to disconnect the fuel pump fuse for the vehicle to turn off. The vehicle would also not turn on when the contact attempted to start the vehicle. The dealer was made aware of the failure and informed the contact to contact the manufacturer for assistance. The vehicle was diagnosed and repaired. The manufacturer was made aware of the failure and informed the contact they would send for a tow truck, but the tow truck never showed up. The failure mileage was approximately 4,400.

We have a new 2021 CX5 and the two taillights (the ones that are on top of the backup lights) do not light up. The dealer, Napleton Mazda in Libertyville, IL, told us that that is normal and those lights are not meant to light up. The dealer said they have many customers bringing their car in for service for the same issue, but it is not something they can fix. At night the car is not as visible as it should be, especially if you are in a dark area and stopped without your foot on the brake. We had the police pull over my daughter in the car saying she had no lights in the rear. This is not on all these models, but we were told this particular model doesn't have the lights, even though the light kits are installed.

On 17-MAY-2021 after sitting unused for 1 day my Mazda CX-5, mfg year 2021 with about 1,500 miles did not start. All electrical systems failed, there was no indication of any power present. The vehicle is presently at the dealership it was purchased at about 90 days ago, 495 Mazda in Lowell MA and is available for inspection. The sudden loss of all electrical systems has the potential for stranding the driver and passengers in dangerous locations. The problem has not yet been reproduced. The vehicle has been inspected by the service department of 495 Mazda in Lowell MA who advised they had charged the battery and tested it as ok and offered to return the vehicle to me. There were no warning lights or other indication of this problem. This morning when I called for service, the dealer, 495 Mazda informed me they do not pick up failed automobiles and I should either call Mazda roadside assistance or jump start the car and bring it in. I measured the battery voltage at 2.5 volts and charged it with a high quality battery charger. The car then started. After shutting off the car there was a faint buzzing sound from the engine compartment. I advised the dealer service department of all these details. I would also note that after the car started I measured the battery voltage at over 14 volts proving the charging system works, after shutting off the engine the voltage dropped to 12.1 volts.

I WAS DRIVING ON THE HIGHWAY AT ABOUT 65MPH AND HEARD A LOUD POP. I WAS UNSURE WHAT IT COULD HAVE BEEN, BUT KNEW IT CAME FROM THE ROOF AREA. I OPENED THE SLIDER TO THE SUNROOF. THE GLASS HAD EXPLODED!! I PULLED OVER TO ASSESS THE DAMAGE AND NOTICED THE GLASS EXPLODED OUTWARD. I HAVE PICTURES SHOWING THE HOLE IN THE GLASS AS WELL AS THE SHARDS (HELD TOGETHER BY SAFETY COATING) POINTING UP AND AWAY FROM THE CAR FROM HAVING EXPLODED OUT.