If the car has been in a collision, the message Safety mode See Owner's manual may be shown on the driver display with a warning symbol as long as the display is not damaged and the car's electrical system is still in working order. This message means that the car has reduced functionality.
Never, under any circumstances, attempt to restart the car if it smells of fuel when the Safety mode See Owner's manual message is shown in the driver display. Leave the car at once.
If the car is in safety mode, it is possible to attempt to reset the system in order to start and move the car for a short distance, if in a dangerous traffic situation for example.
Never attempt to repair your car or reset the electronics yourself if the car has been in safety mode. This could result in personal injury or the car not functioning as normal. Volvo recommends engaging an authorised Volvo workshop to check and restore the car to normal status after Safety mode See Owner's manual has been shown.