Quick answer

The G9 handbook calls this Slow Charging Appointment. Open Charging and Discharging, then Charging, enable the appointment and set the time. After plugging in, lock the vehicle. If both the car and wallbox have separate schedules, they can wait for each other, so use one scheduler while testing.

Before you start

Use this for AC/slow charging, not a rapid charger. Check the tariff’s actual off-peak clock times, allow for British Summer Time changes and confirm the charge point is available. Photograph the car and charger schedules before changing them.

  • Cable is fully latched at both ends.
  • The car recognises an AC connection.
  • The required charging window has not already passed.
  • Only one active scheduler controls the first test.

What to do

Before you start, read the complete sequence. Follow these steps in order and stop if the vehicle shows a stronger warning than the one described here.

  1. On the centre display open Charging and Discharging, then Charging.
  2. Enable Slow Charging Appointment and set the desired start and end time.
  3. Temporarily disable any wallbox or energy-app schedule so it supplies power when the car requests it.
  4. Connect the cable, confirm the car shows a waiting or scheduled state, then lock the vehicle as the handbook instructs.
  5. Check again shortly after the start time. Record the display message and charger status if energy flow does not begin.

Expected result

You should expect the following result when the documented route is successful: Before the start time, the car should acknowledge the connected cable and scheduled state rather than report an immediate charging fault. At the selected start time, the charge point should energise and the vehicle should show active AC charging.

If it still does not work

Run one immediate-charge test. If immediate charging also fails, the problem is not merely the timer: try another known-good cable or charger and contact the charge-point provider or XPENG service as appropriate. If immediate charging works, rebuild a single schedule and verify the time zone.

Safety and model boundary

The cited G9 document is XPENG’s 2025 English handbook and may not describe every UK-market derivative or later XOS wording. Follow the screen in the exact car. Stop if the connector, socket or cable is hot, damaged, wet internally or produces a persistent fault warning.

Official handbook evidence

XPENG G9 2025 User Manual, PDF pages 292–293 (printed pages 294–295), “Slow Charge” and “Slow Charging Appointment”.

What to record before asking for help

Write down the model, model year, current XOS version and the time the problem occurred. Add the exact display wording, the last action that worked and the outcome of each safe check above. For charging issues include the charger type and its indicator; for access issues include the key method used. Do not include a VIN, registration, account password, PIN or verification code in a public post.

Why this matters: menu names, hardware and behaviour can change with market, model year and XOS version. Record the exact wording shown by the car before contacting support. That gives a service adviser a reproducible symptom instead of a general description.