Mazda Engine and Engine Cooling: Engine Control Module (ECU/ECM)

Mazda is recalling about 31,488 vehicles over a problem with the engine and engine cooling. Loss of drive power increases the risk of a crash.

Campaign
24V815000
Manufacturer
Mazda North American Operations
Reported
31 October 2024
Vehicles
31,488
Built between
Dec 2022 – Jul 2024
Models
2
Recall type
Vehicle
Initiated by
NHTSA investigation
Owners notified
19 December 2024
Repaired
97%
Unrepaired
1,035

Does this affect my vehicle?

This recall covers vehicles built between December 2022 and July 2024. If yours was built outside that window, it is not part of this recall.

  • 2025 Mazda CX-70Built December 2023 to July 2024
  • 2024 Mazda CX-90Built December 2022 to June 2024

Repair progress

1,035 of 31,488 vehicles in this recall had still not been repaired as of Q2 2026.

97% repaired — 30,388 of 31,488 reported

Owners not reachable
48
Scrapped or exported
17

Manufacturers file these figures with NHTSA each quarter. Vehicles the manufacturer could not trace, or that have been scrapped or exported, are counted separately and are not included in the unrepaired figure.

What the defect is

Mazda North American Operations (Mazda) is recalling certain 2024 CX-90 and 2025 CX-70 vehicles. The powertrain control module (PCM) and engine control modules (ECM) software may cause malfunction indicator lights to illuminate and a loss of drive power.

What could happen

Loss of drive power increases the risk of a crash.

What gets fixed

Dealers will reprogram the PCM and ECM software, free of charge. Owner notification letters were mailed December 19, 2024.

Parts involved

  • ECMMS05/MS06‐186K2Engine control modules
  • PCMPXRC/H301/H302-188K2Powertrain control module

Part numbers are as filed by the manufacturer and are listed for reference. Your dealer will confirm the correct part for your vehicle.

Timeline

  1. Vehicles builtDecember 2022 to July 2024
  2. Recall reported to NHTSA31 October 2024
  3. Owners notified19 December 2024
  4. Latest repair reportQ2 2026 — 97% repaired

Your rights

A safety recall repair is free. Under US federal law the manufacturer must fix a safety defect at no cost to you — no charge for parts, labor or diagnosis — whether or not you are the original owner. A dealer cannot charge you for recall work, and cannot require you to have bought the vehicle from them.

That entitlement is not unlimited. It applies where the vehicle was first sold less than 15 years before the recall was announced — 5 years for tires. Past that a manufacturer may still do the repair free of charge, and many do, but they are no longer obliged to. This recall was reported on 31 October 2024.

To arrange the repair, contact any franchised dealer for the brand. If a dealer refuses the work or tries to charge for it, you can report that to NHTSA at nhtsa.gov/recalls or on 1-888-327-4236.

Manufacturer contact

Owners may contact Mazda customer service at 1-800-222-5500 Option 6. Mazda's number for this recall is 7024J.

Official source

Manufacturer's recall number
7024J
Recalling manufacturer
Mazda North American Operations
Recall initiated by
ODI

Everything on this page — the models listed, the build dates and the repair figures — comes from the manufacturer's filing to NHTSA and describes the vehicle line as a whole, not any individual car. Only the manufacturer can confirm whether a specific vehicle is affected, and whether its recall work has already been carried out. Check yours by VIN and read the official notice at nhtsa.gov/recalls.

Additional notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153) or go to www.nhtsa.gov.

Check your own vehicle

This page describes the recall, not any one car. To see which recalls cover a specific vehicle, search by make, model and year.

A VIN lookup here identifies your vehicle and shows recalls issued for that make, model and year. It cannot tell you what is still open on your individual car - only the manufacturer knows that. Search by VIN instead, or check your VIN at nhtsa.gov for whether a recall is still open on your individual car.

Same component

Same brand