How many electrical complaints does the 2018 Mazda CX-9 have?

NHTSA lists 16 electrical system complaints for the 2018 CX-9, which is 13% of the 128 total complaints filed for that model year.

Is there a recall for the 2018 Mazda CX-9 electrical system?

Yes. Recall 19V403000, reported May 30, 2019, covers a wiring harness that may disrupt electrical communications and disable the passenger frontal air bag, turn signals, and/or the engine starting system. Mazda dealers repair the wiring harness free of charge.

At what mileage do electrical problems show up on the 2018 CX-9?

The median mileage at failure among reported electrical complaints is 10,352 miles.

Did the 2018 CX-9 electrical issues cause any crashes or injuries?

NHTSA records show 0 crashes and 0 injuries tied to electrical system complaints for this year, though 1 fire was reported.

How does 2018 compare to other CX-9 model years for electrical complaints?

The 2018 CX-9's electrical complaint share is 13%, the same as 2019, while 2016 was also elevated at 13% and 2022 reached 30%, though on a much smaller complaint count of 3.

2018 Mazda CX-9 Electrical System Problems

NHTSA lists 16 electrical system complaints for the 2018 Mazda CX-9, 13% of all 128 complaints for the year. One fire was reported, no crashes or injuries, and a wiring harness recall (19V403000) covers this system.

Electrical System complaints: 16; 13% of 128
Crashes reported: 0
Fires reported: 1
Injuries reported: 0
Median mileage: 10,352 mi
Related recalls: 1

Typical electrical symptoms owners report

Infotainment/LCD screens develop spider-web cracking or discoloration in a corner, obscuring the map, backup camera, and controls.
Vehicles have shown ignition-on warnings with the engine off, unexpected engine revving on the highway, and 'no key detected' alerts while the key was inside the car.
Some owners reported the vehicle going completely dead with no power after the backup camera failed to activate and showed a 'check your surroundings' message.
A passenger seat heater reportedly had a grounding issue or short that caused smoldering and a fire, destroying the seat.
Owners reported a 'Smart System Brake Malfunction' warning followed by the vehicle braking on its own without driver input, along with forward sensing camera failures.

When 2018 Mazda CX-9 electrical complaints were filed

First complaint Oct 26, 2018, latest Mar 18, 2026.

16 complaints filed with NHTSA from Oct 2018 to Mar 2026; peak Sep 2025 (2).

Electrical System recalls for the 2018 Mazda CX-9

NHTSA 19V403000May 30, 2019Electrical System7,854 vehicles
Electrical system:wiring
Mazda North American Operations (Mazda) is recalling certain 2018 CX-9 vehicles. The wiring harness may disrupt electrical communications and disable the passenger frontal air bag, turn signals, and/or engine starting system.
Risk: The passenger frontal air bag may not deploy, increasing the risk of injury. Inoperable turn signals prevent the driver from signaling to other drivers, increasing the risk of crash.
Remedy: Mazda will notify owners, and dealers will repair the wiring harnesses, free of charge. The recall began July 26, 2019. Owners may contact Mazda customer service at 1-800-222-5500, Option 4. Mazda's number for this recall is 3419E.

Electrical System complaints by CX-9 model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

20076 (7%)
200813 (8%)
20092 (3%)
20109 (5%)
20117 (4%)
20128 (4%)
20132 (3%)
20142 (4%)
20153 (9%)
201614 (13%)
20172 (3%)
201816 (13%)
20197 (13%)
20204 (21%)
20211 (3%)
20223 (30%)
20231 (8%)

Frequently asked questions

How many electrical complaints does the 2018 Mazda CX-9 have?: NHTSA lists 16 electrical system complaints for the 2018 CX-9, which is 13% of the 128 total complaints filed for that model year.
Is there a recall for the 2018 Mazda CX-9 electrical system?: Yes. Recall 19V403000, reported May 30, 2019, covers a wiring harness that may disrupt electrical communications and disable the passenger frontal air bag, turn signals, and/or the engine starting system. Mazda dealers repair the wiring harness free of charge.
At what mileage do electrical problems show up on the 2018 CX-9?: The median mileage at failure among reported electrical complaints is 10,352 miles.
Did the 2018 CX-9 electrical issues cause any crashes or injuries?: NHTSA records show 0 crashes and 0 injuries tied to electrical system complaints for this year, though 1 fire was reported.
How does 2018 compare to other CX-9 model years for electrical complaints?: The 2018 CX-9's electrical complaint share is 13%, the same as 2019, while 2016 was also elevated at 13% and 2022 reached 30%, though on a much smaller complaint count of 3.