These instructions apply to the Cupra Ateca Mk1 (KH) 2020-present.
For other models, please choose your vehicle here.
Your Cupra Ateca (KH, 2020–present) shuts the engine off at a standstill to save fuel. When you’d rather it didn’t — crawling traffic, a hot day, or before any under-bonnet work — one button switches it off.
How Start/Stop Works on the Ateca
As you brake to a halt, the control unit runs through a checklist and, if everything is in range, shuts the engine down. Ease off the brake and it restarts instantly, ready to pull away. Because a fast, reliable restart depends on the 12 V battery, the system continuously watches battery charge, engine and cabin temperature, and the load from the climate control. If any of those aren’t satisfied it simply leaves the engine idling — that’s the system looking after itself, not a fault developing.
Getting Ready
- Switch the ignition on; the engine does not have to be running to change the setting.
- Find the AⓇ symbol so you press the correct button.
- Remember the choice only lasts this drive, so set it before you pull away.
- Planning engine-bay work? Turn it off first so the engine can’t restart unexpectedly.
Turning Start/Stop Off
- Locate the AⓇ button (an “A” circled by an arrow), usually near the gear lever.
- Press it once; the indicator confirms the system is off and the engine stays running at stops.
Why It’s On Again Next Time
The Ateca switches Start/Stop back on at every ignition cycle — there’s no permanent off from the factory. Tap the button once at the start of each drive if you don’t want it.
If the Engine Won’t Cut (or the Button Won’t Disable It)
Reasons the engine may keep idling with the system on, or the off setting may appear to do nothing:
- Weak or ageing 12 V battery — the usual culprit. A tired battery, or a run of short journeys that never fully recharge it, blocks the system from engaging.
- Cabin not at temperature — on a cold or very hot day it keeps running to heat or cool the interior.
- Engine still cold — it generally won’t stop until the engine has warmed up.
- Parked on a gradient — it may decline to stop on a slope.
- Brake or steering input — not holding the brake firmly, or turning the wheel, can keep it running.
- Wrong control pressed — check the indicator actually changed when you pressed AⓇ.
What Happens Next
Once disabled, the Ateca keeps idling at every stop for the rest of that drive and the button indicator stays lit to confirm it. Start the car again and the system is armed by default. If a dedicated fault symbol appears instead of the normal status light, treat that as worth checking — it usually traces back to the 12 V battery.
Frequently Asked Questions
How do I switch off auto stop/start on a Cupra Ateca?
With the ignition on, press the AⓇ button near the gear lever. The indicator changes to show the system is off, and the engine stays running the next time you stop. The setting applies to the current drive only.
Can it stay off for good?
Not from the standard settings. The Ateca re-arms Start/Stop at every ignition cycle, so there is no permanent off. The simplest routine is to press the button once at the start of each drive if you prefer the engine to keep running at stops.
Why did it switch itself back on?
Turning the ignition off and on resets the system to its default on state. This is intended behaviour rather than a fault. Any button press from your previous drive is cleared, so you need to press it again each time you set off.
Why won’t the engine cut at a standstill sometimes?
The engine only stops when the conditions line up: a healthy 12 V battery, a warm engine, satisfied cabin climate, level ground and a firm brake pedal. If one is missing — commonly a low battery or a cabin still warming up or cooling down — the engine keeps running, which is normal.
Is it bad to leave Start/Stop running?
No. The engine, starter and battery are built for the extra cycles, and the system already refuses to stop when the battery is weak or the engine is cold. Leaving it on trims fuel use in town; switching it off is purely a comfort choice with no downside.
Does turning it off damage anything?
No. Disabling Start/Stop simply lets the engine idle at stops like an older car. It puts no extra strain on the battery or engine — the battery actually sees slightly less demand because it isn’t supporting repeated restarts.
If a start/stop fault symbol shows, it usually points to a weak 12 V battery — see our Ateca battery guide, or look the code up on autodtcs.com.
Independent guide — not affiliated with Cupra. Always follow your official service manual and safety precautions. Read our full disclaimer.