2021 Mazda CX-5 Electrical system Problems
- Complaints
- 12about this part
- Share
- 8%of 148 total for the year
- Median mileage
- 3,014miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 12 complaints about the electrical system of the 2021 Mazda CX-5, 8% of the 148 complaints for this model year. Where a mileage was given, the median is 3,014 miles. 2 of these say a crash was involved, according to the filers.
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.
“Infotainment system went dark and I cannot get it to come back on. I’ve read that this has been an ongoing issue and is covered in Mazda cx5 models up to 2020 thru a class action lawsuit, but my one is a 2021 (manufactured we’ll before 2021 though) with a virtually identical system.”
NHTSA complaint #11668480, filed 2025-06“Our 2021 Mazda CX-5 infotainment/backup screen went black/blank. I could still hear radio, but when vehicle put in reverse, backup camera not working. Tried a recommended “fix” which was putting vehicle in reverse and pushing down volume knob for 3 seconds which did not work. Turned vehicle off, waited a minute and then restarted but screen still black and backup camera not working. After vehicle sat for approximately 15 minutes, restarted vehicle and system back to normal. Contacted decker and they had no fix. …”
NHTSA complaint #11528937, filed 2023-06“Screen blank when I am drving a while without any problem. I saw online and many owner have same problem. I followed company and online instruction. the problem could not be solved.”
NHTSA complaint #11558769, filed 2023-12“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.”
NHTSA complaint #11475541, filed 2022-07“..... On at least 5 seperate occasions our 2021 Mazda cx5 SUV accelerated to a high rate of speed (on it's own). It has done it to my wife and I both. I contacted two different Mazda service centers and was advised they have no knowledge of this and that there are no open recalls or TSB's and as intermittent as it is it would be almost impossible to duplicate. On july 18th the car accelerated (on its own) again but this time it drove my wife into a tree at aprox. 35/40 MPH breaking her ribs. The body shop informed me this morning that the car is a total loss. …”
NHTSA complaint #11676813, filed 2025-07Related service bulletins
- 11037900Sep 17, 2026Mazda Connected Services - Frequently Asked Questions (FAQ) This Service Alert supersedes the previously issued SAs listed below. The changes are noted in Red text.
- 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…
- 11037634Sep 10, 2026This Service Alert supersedes the previously issued service alert listed below. The changes are noted in Red text. SA-038/26 08/18/26 and 06/15/26 DESCRIPTION Some customers may…
- 11037018Sep 4, 2026This Service Alert supersedes the previously issued service alert listed below. The changes are noted in Red text. SA-038/26 06/15/26 DESCRIPTION Some customers may complain…
- 11037012Aug 20, 2026This Service Alert supersedes the previously issued Service Alerts listed below: The changes are noted in Red. Infotainment Reboot With Navigation Card Installed This Service…
- 11037019Aug 19, 2026This Service Alert supersedes the previously issued SA(s) listed below. The changes are noted in Red text. SA-039/26 06/15/26 Mazda Connect Symptom Troubleshooting DESCRIPTION…
- 11037011Aug 19, 2026This Service Alert supersedes the previously issued bulletin(s) listed below. The changes are noted in Red text. SA-006/23 01/23/23 DESCRIPTION Some customers may complain about…
- 11034448Jul 1, 2026This Service Alert supersedes the previously issued SAs listed below. The changes are noted in Red text. SA-017/25 12/16/25, 09/08/25, 07/14/25, 05/15/25 and 03/21/25 DESCRIPTION…
- 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…
- 11034436Jun 18, 2026This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 09-012/21 12/13/21, 06/10/21 and 04/27/21 DESCRIPTION Some customers may…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 5 | 29% |
| 2025 | 6 | 21% |
| 2024 | 3 | 7% |
| 2023 | 9 | 13% |
| 2022 | 6 | 9% |
| 2021 | 12 | 8% |
| 2020 | 31 | 29% |
| 2019 | 46 | 17% |
| 2018 | 29 | 8% |
| 2017 | 44 | 29% |
| 2016 | 71 | 14% |
| 2015 | 8 | 6% |
| 2014 | 132 | 35% |
| 2013 | 58 | 30% |
Other parts of the 2021 Mazda CX-5
80 complaintsOther or unknown
18 complaintsTransmission and drivetrain
17 complaintsBrakes
11 complaintsForward collision avoidance
11 complaintsFuel system
8 complaintsVehicle speed control
8 complaintsLane departure
7 complaintsVisibility (wipers, defrost, mirrors)
7 complaintsAir bags
5 complaintsTires
3 complaintsBack-over prevention (rear camera)
2 complaints
← All problems reported for the 2021 Mazda CX-5
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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