These instructions apply to the Alfa Romeo Giulietta Mk1 (940) 2010-2020. For other models, please choose your vehicle here.
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Your Alfa Romeo Giulietta (2010–2020) switches the engine off at a standstill to save fuel, then restarts it as you pull away. If you’d rather keep it running — in heavy traffic or by preference — you can switch the system off in one press. Here’s how, and why it’s back on next drive.
Turning the System Off
- With the engine running, press the Start&Stop button on the centre console (marked with an “A” inside a circular arrow).
- An indicator confirms the system is off; the engine now stays running at a standstill.
The system defaults back to on every time you start the Giulietta, so disabling it is a per-drive choice — press the button again to re-enable it.
When the Giulietta Disables Start&Stop Itself
Even with the system on, the Giulietta won’t stop the engine when it isn’t appropriate, so continued idling isn’t necessarily a fault. It keeps the engine running when, for example, the cabin is still reaching temperature, the engine is cold, or the 12 V battery charge is low.
If Start&Stop Stops Working
- Check the battery. The system relies on a healthy, charged 12 V battery; an ageing one is the usual reason the engine stops cutting out.
- Fasten your seat belt and close the doors/bonnet — open ones inhibit the function.
- Warning light flagging a fault? A charging or sensor issue stores a code — look it up on autodtcs.com.
Frequently Asked Questions
How do I turn off Start&Stop on an Alfa Giulietta?
Press the Start&Stop “A” button on the console; an indicator confirms it’s off until the next restart.
Does the setting stay off?
No — it resets to on each time you start the car, so press the button each drive if you want it off.
Why has my Giulietta stopped switching the engine off?
Usually a low or ageing 12 V battery, or the engine/cabin not yet at temperature.
Is it harmful to leave it on?
No — the system and starter are designed for it; switching off is purely preference.
If a warning light appeared with the change, decode it on autodtcs.com.
Disclaimer: The information on this page is provided for general guidance only. Always follow your official service manual and safety precautions when working on your vehicle. We are not responsible for errors, omissions, or any damage resulting from the use of this information.
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