1. Turn the ignition key to the "On" position without starting the engine.
2. Press and hold the "Trip" button on the instrument panel until the spanner light turns off.
3. Turn the ignition key to the "Off" position.
Note: If the spanner light does not turn off after following these steps, there may be an underlying issue with the vehicle that requires professional attention. It is recommended to take the van to a qualified mechanic for diagnosis and repair.