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uk Transport & mobility emergencies

What to do if…
a car-share vehicle will not unlock even though your booking is active

Produced and maintained by PanicStation.org Published: Last reviewed: Editorial policy UK guide

Short answer

Stay safe, confirm you are at the correct vehicle and inside the active booking window, then contact the car-share provider’s support route while you are still beside the vehicle if it is safe to stay there.

Do not do these things

  • Do not force the door, window, reader panel, charging flap, or key box; you may be charged or blamed for damage.
  • Do not keep repeatedly pressing unlock or tapping a card without changing anything; some operators warn this can make access problems worse.
  • Do not walk away without contacting support if the booking time is running; the provider may need you near the vehicle to check access logs or run diagnostics.
  • Do not share login codes, app access, membership cards, or your phone with a stranger.
  • Do not tow, push, tamper with, or try to bypass any device on the vehicle unless the provider or an authorised official tells you to.

What to do now

  1. Get to a safer pause point. Stand away from traffic, cycle lanes, driveways, and isolated corners if you can. Keep your belongings with you and take a few slow breaths before trying anything else.

  2. Confirm the basics before troubleshooting. Match the registration number, vehicle description, bay, and location in the app or booking email. Check that the booking has started; the app may not show or allow unlock until the reservation window starts.

  3. Check only the access settings your operator uses.

    • If your operator uses app unlock, make sure your phone has enough battery for a call and another unlock attempt.
    • Turn on Bluetooth if the operator’s app uses it for vehicle access.
    • Allow location access for the app if the operator requires it.
    • If the vehicle is in a weak-signal place, step briefly to where the booking screen can refresh, then return beside the vehicle before trying again.

  4. Try one clean unlock attempt. Fully close the app, reopen it, open the active booking, and press the operator’s unlock or start-rental button once. If your service uses a smartcard, try the card once and hold it to the reader for the time your operator specifies.

  5. Contact the provider from the pickup location. Use the support number, live chat, or in-app help route shown in your booking or membership app. Tell them:

    • the booking start and end time;
    • the registration number;
    • the exact bay or pickup location;
    • what the app shows, such as a greyed-out button, spinning screen, or error message;
    • whether you tried app unlock, Bluetooth, location access, signal refresh, or a smartcard.

  6. Ask support to record the access failure. Ask them to note that you could not access the vehicle, check whether they can unlock it remotely, restart the booking, reassign you to another vehicle, or stop charges for unusable time.

  7. Leave the vehicle area if staying there is unsafe. Move to a staffed or public place nearby, such as a station entrance, shop, hotel lobby, or well-lit busy area, and contact support from there. If someone is in immediate danger, call 999.

  8. Keep simple proof for later. Screenshot the active booking page, any error message, and the time. Note the registration number and location. Do not start a long billing dispute while you are still stranded.

What can wait

  • You do not need to argue about fees, refunds, or compensation while you are standing at the vehicle.
  • You do not need to write a detailed complaint now.
  • You do not need to reinstall the app, factory-reset your phone, change payment cards, or make account changes unless support asks you to.
  • You do not need to decide whether to keep using that operator today; the immediate task is safe access, reassignment, or ending the unusable booking.

Important reassurance

App, smartcard, signal, and booking-window access failures can happen even when you have done nothing wrong. The safest useful move is to slow down, avoid damaging the vehicle, and get the provider to record and handle the access failure.

Scope note

These are first steps only: stay safe, verify the vehicle and booking, contact the operator, and keep proof. Later decisions about charges, complaints, membership status, or alternative transport may need the provider’s complaints process or specialist help.

Important note

This guide is general information, not legal, financial, technical, safety, or professional advice. Car-share systems and procedures vary by operator and vehicle; follow your provider’s instructions and local safety guidance in the moment.

Additional Resources

Closely connected guides that may be useful during the same situation or its immediate aftermath.

About this guide

This guide was produced and is maintained by PanicStation.org using its published editorial process. Official and specialist sources are checked where relevant, and AI-assisted tools may be used for drafting, organisation, and consistency checks. The site operator remains responsible for publication, revision, and removal decisions.

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