| Message | Specification | 
|---|---|
Blind spot sensor Service required  | The system does not function as it should. A workshop should be contacted - an authorised Volvo workshop is recommended. | 
Blind spot system off Trailer attached  | BLIS and CTA 2 have been deactivated as a trailer has been connected to the car's electrical system. | 
A text message can be cleared by briefly pressing the 
 button, located in the centre of the steering wheel's right-hand keypad.
If a message remains: Contact a workshop – an authorised Volvo workshop is recommended.