9.7

really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
592 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2021 Mazda CX-30 electrical problems

electrical problem

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2021 Mazda CX-30 Owner Comments

problem #6

Jan 222024

CX-30

  • miles

A D V E R T I S E M E N T S

I'm getting a critical engine error with the car saying I have low oil pressure. The dealership has looked and said that they can't fix it. They said I can drive it with the warning

- Tampa, FL, USA

problem #5

Dec 032022

CX-30

  • miles
The car's battery has failed two times. The second time is after the battery was replaced -- so the problem was with two different batteries. Both times, I had to call & wait for roadside assistance. Dangerous situation. Both times, the car required a jump-start then a full charge. The dealer denies a battery problem or electrical system problem. However, a Mazda Roadside Assistance service provided advised me on 12/3/2022 that the (second) battery was dead and that something in the electrical system is clearly draining the battery. The car is driven every day. *** Several times a week there is a dashboard notice of "low battery risk". *** This has been consistent, starting with the first week of owning the car. It appears that something(s) in the electrical system is draining the battery to the point of failure. The car is 18 months old with @ 16,500 miles driven. It is a 2021 Mazda CX-30 Turbo Premium Plus. It is available for inspection.

- Arlington, VA, USA

problem #4

Jun 042022

CX-30

  • miles
Randomly accelerated on its own; burns oil- low oil levels twice in 6 months; randomly says cruise control is available under 25 mph when car is traveling at highway speeds; the unlock and lock functions randomly fail; lift gate randomly opens; alarm system randomly goes off; TERRIBLE fuel economy (18-21 mpg)

- Vermillion, SD, USA

problem #3

Jan 222022

CX-30

  • miles

A D V E R T I S E M E N T S

Multiple warning messages came on including "Pus button start malfunction. Have the vehicle inspected." "In-vehicle network malfunction. Have the vehicle inspected." "Auto light system malfunction. Turn on/off lights manually." "Power steering malfunction. Have the vehicle inspected." "Driver attention alert disabled." Vehicle would not start after this and had to be towed to a Mazda dealership.

- Mesquite, NV, USA

problem #2

Jun 152021

CX-30 4-cyl

  • 3,500 miles
The contact owns a 2021 Mazda CX-30. The contact stated that while at a stop sign, the vehicle was bouncing up and down. The contact mentioned that the failure recurred multiple times and only while the vehicle was stopped. The dealer was contacted but was unable to provide a diagnosis. The vehicle was not repaired. The manufacturer was not notified of the failure. In addition, while driving at approximately 8 mph, the brake assist warning light illuminated, and the brake assist applied independently while there was nothing in front of the vehicle. The approximate failure mileage was 3,500. As of November 5, 2021 the mileage was noted as 6,301 by Manchester Mazda. The vehicle would start bouncing up and down and moving forwards and backwards while stopped at a stop light and this occurred multiple times shortly after the purchase, within a month of purchase and randomly continued up to the point of the following issue. Consumer had shut off the brake assist every time she was driving there have been no more incidences. In addition, having the winter tires put on stopped the incident from recurring.

- Enfield, CT, USA

problem #1

Apr 012021

CX-30

  • 50 miles
The contact owns a 2021 Mazda Cx-30. The contact stated while driving 3 mph, the vehicle loss motive power. The contact stated that the low voltage 12-V charge warning light was illuminated. The contact stated a bystander assisted to jump start the vehicle. The contact continued driving to her destination. The vehicle was taken to cook Chrysler Dodge Ram (1136 S philadelphia blvd, aberdeen, md 21001, (410) 346-3786) however, the mechanic was unable to duplicate the failure. The vehicle was not yet repaired. The contact stated she had experience the failure on four times and the vehicle was towed to the dealer. The manufacturer was informed of the failure. The failure mileage was approximately 50.

- 41 Shore Ln, DE, USA

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