by Problem with Fuel Sensor in Mazda CX-70 and CX-90
Mazda has announced a recall of nearly 105,000 CX-70 and CX-90 model vehicles due to a malfunction in the fuel sensor’s operation. This problem can lead to inaccurate fuel level readings on the dashboard, even when the tank is actually empty.
Details of the Technical Malfunction
As reported by the manufacturer, the problem arises from the interaction of fuel containing ethanol with the materials of the fuel level sensor’s circuit board in the auxiliary tank. Over time, this causes soot accumulation, which affects the accuracy of the sensor’s readings.
Mazda confirmed that all vehicles subject to the recall may have this issue.
Scale of the Recall
The CX-90 model is the most affected—the recall concerns 88,798 vehicles from the 2024 and 2025 model years, manufactured from December 27, 2022, to April 25, 2025. Additionally, 16,056 CX-70 vehicles from the 2025 model year, produced from December 5, 2023, to April 25, 2025, are affected by the recall.
History of Problem Discovery
The first complaints were received by Mazda as early as August 2023, when one of the vehicles stalled despite fuel readings. This prompted the company to conduct a large-scale investigation in the US and Canada, which lasted over 18 months.
Plans for Resolving the Issue
Notifications will begin to be sent to owners of the affected vehicles starting November 1. Dealerships will update the Body Control Module software free of charge, which is expected to resolve the issue with inaccurate fuel readings.
Although the problem is serious, fortunately, no accidents or injuries related to this malfunction have been reported. For owners of these models, it is important to promptly contact official Mazda representatives to fix the malfunction and avoid extremely low fuel levels during trips until the repair is conducted.
