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My P-DISC flashes blue while driving or doesn’t light up in parking mode– what now?

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OOONO – My P-DISC flashes blue while driving or doesn't light up in parking mode – what now?
OOONO P-DISC

The blue light: what it means and what to do.

A brief blue flash in parking mode is normal. Here's when to expect it — and what to check if something seems off.

Note: The blue indicator light applies to the P-DISC NO2, NO3 and NO4 only. The P-DISC NO1 does not flash blue in parking mode — so if you're using a NO1 and see no blue light, that's completely normal.
Normal behaviour

What the blue light means

P-DISC NO3
P-DISC NO3 back with blue light
P-DISC NO4
P-DISC NO4 back with blue light
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    The blue light should only flash when parking mode is activated — right after the vehicle is parked.
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    While driving, the light should be off and the display blank to save battery.
Note for electric and hybrid vehicles In vehicles with low vibration levels — such as electric or modern hybrid models — the device may briefly detect parking mode while driving. This can occur at traffic lights, in stop-and-go traffic, at very low speeds, or during smooth driving. Since these vehicles produce minimal vibration compared to combustion engines, the sensor may occasionally struggle to distinguish between driving and standstill.
Troubleshooting

What to do if something seems off

Check the battery

A low battery can cause unexpected blinking or prevent the display from activating in parking mode. If in doubt, try replacing the battery. When and how do I replace the battery?

Still not working as expected?

Reach out to our Support Team here — we're happy to help.

More resources

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