QUOTE(buffa @ Mar 10 2025, 12:07 PM)
Hi, my cx5 battery flat (3years already), so I just change battery outside.
But after change, the i-stop still keep blinking, and system there written
i-stop system malfunction
I-stop operation is not possible. Have your vehicle checked at mazda dealer.
Any idea? Or I really have to send into SC?
from chatgpt, but I believe it need sort of reset. Either automatically.
Possible Reasons & Fixes:
✅ 1. i-Stop System Reset (Try This First)
Since the system needs to "relearn" the new battery, follow these steps to reset it:
Start the engine and let it idle for about 10-15 minutes (ensure all accessories like air-con and lights are off).
Turn the steering wheel fully left, then fully right, and return it to the center (this recalibrates the steering sensor).
Drive the car above 10-15 km/h for a few minutes, then check if the i-Stop warning disappears.
✅ 2. Manual Battery Sensor Reset (Battery Relearning Procedure)
If the above step doesn’t work, try this:
Turn off the engine and open the driver’s door.
Press the start button twice (without pressing the brake) to enter ACC mode.
Press and hold the i-Stop OFF button for 3-5 seconds until the warning light blinks.
Start the engine and drive normally.
✅ 3. Check if the Battery Type Matches
Mazda i-Stop requires an EFB (Enhanced Flooded Battery) or AGM (Absorbent Glass Mat) battery.
If a standard battery was installed instead of EFB/AGM, i-Stop may not function properly.