While beginning to turn into an interstate exit lane, all dashboard lights lit up, the engine died, and the car stopped. Power brakes & steering were inactivated. My husband was able to coast the car to the shoulder. My Mazda app said nothing wrong with car. Waited 3 hours for tow as we were out of state. The Mazda dealership found the high pressure fuel pump to have a malfunction. Two different technicians at the dealership related that Mazda was aware of the issue & had not yet issued a recalled.
2021 Mazda CX-5 electrical complaints
Page 2 of 2: complaints 11 to 14 of 14, newest first, as owners wrote them.
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 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.
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.
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