2019 Mazda CX-3 Electrical system Problems
- Complaints
- 9about this part
- Share
- 33%of 27 total for the year
- Median mileage
- 12,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 9 complaints about the electrical system of the 2019 Mazda CX-3, 33% of the 27 complaints for this model year. Where a mileage was given, the median is 12,500 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Key fob disconnects while driving. Lock/unlock does not work. Car does not start when keyfob is in vehicle. This has happened three times now, the dealership has changed my keyfobs, flashed the memory, and replaced the batteries. I've spoken to corporate customer service and was told sometimes key fobs just disconnect. Please exit the vehicle, wait, and try again. I'm currently waiting for this to happen a fourth time.”
NHTSA complaint #11230376, filed 2019-07, 12,500 miles“I purchased my 2019 cx 3 november 2018. April 17 2019 with 1840 miles I needed a new battery. I was told I didn't drive the care enough! I drive my car every day but it is local driving. February 25 2020 my car was serviced at 5000 miles including oil change and engine check. Paperwork showed battery at 100%. March 2 2020 another new battery was installed. I was told it was because of the cold (70 degrees) weather! I do not leave A/C or radio running when I exit the car. I would like to know if there is an electrical problem with my car or some other underlying problem. …”
NHTSA complaint #11315769, filed 2020-03, 5,098 miles“The contact owns a 2019 Mazda CX-3. The contact stated while driving at an undisclosed speed, the vehicle lost motive power and was unable to accelerate above 20 MPH. The low oil pressure warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the electrical wiring harness, finding that the harness appeared to suffer from normal wear and tear. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 132,000.”
NHTSA complaint #11584043, filed 2024-04, 132,000 miles“The contact owns a 2019 Mazda CX3. The contact stated while turning off the vehicle, the engine did shut-off however, the interior electrical components of the vehicle such as the radio and the doors would not automatically lock intermittently. The contact took the vehicle to a local dealer who inspected the vehicle and could not duplicate the failure. The key fob battery was replaced to fix the issue however, the failure recurred with the push to start not operating as designed. …”
NHTSA complaint #11430127, filed 2021-08, 20,000 miles“The contact owns a 2019 Mazda CX-3. The contact stated while driving approximately 60 MPH, while making a lane adjustment to the left, the automated lane departure system overcorrected the steering to the right. The contact stated that the failure was intermittent however, the failure had begun to occur at slower speeds. The contact stated no warning light was illuminated. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the steering shaft needed to be replaced. The vehicle had not been repaired. The manufacturer had been informed of the failure. …”
NHTSA complaint #11508623, filed 2023-02, 29,056 milesRelated service bulletins
- 11037899Sep 11, 2026DESCRIPTION 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…
- 11034447Jun 19, 2026This 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…
- 11032100Apr 4, 2026This Service Alert supersedes the previously issued SAs and bulletin(s) listed below: The changes are noted below in red. SA-010/23 02/09/23 DESCRIPTION Some customers may…
- 11028099Jan 13, 2026If the right-side Blind Spot Monitoring (BSM) control module is replaced for any reason, it is also necessary to replace the left-side BSM control module in order to complete the…
- 11026917Dec 17, 2025If 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…
- 11024999Oct 2, 2025For improvement of electrical diagnosis, the SKYACTIV® Wiring Terminal Test Kits has been delivered all the dealers. The terminal test kit enables you: To check pin fit drag of…
- 11020035Jun 3, 2025The Mazda DCA-8000 is required for all warranty battery testing. If the Mazda DCA-8000 is not used, incorrect battery testing may result in unnecessary battery replacement. Use…
- 11015004Feb 4, 2025The Mazda DCA-8000 is required for all warranty battery testing. If the Mazda DCA-8000 is not used, incorrect battery testing may result in unnecessary battery replacement. Use…
- 11007029Aug 26, 2024For improvement of electrical diagnosis, the SKYACTIV® Wiring Terminal Test Kits has been delivered all the dealers. The terminal test kit enables you: To check pin fit drag of…
- 11007019Aug 15, 2024If 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…
Electrical system: other model years
Other parts of the 2019 Mazda CX-3
5 complaintsFuel system
4 complaintsOther or unknown
4 complaintsAir bags
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsBack-over prevention (rear camera)
1 complaintsBrakes
1 complaintsElectronic stability control
1 complaintsEngine
1 complaintsExterior lighting
1 complaintsForward collision avoidance
1 complaintsLatches, locks and linkages
1 complaints
← All problems reported for the 2019 Mazda CX-3
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology