The mechanism regulating the position of the driver's seat ensured by the structure does not work.
The interior lighting devices of the bus interior do not work.
In both cases.✓Ճիշտ պատասխան
Բացատրություն
The driver's seat-adjustment mechanism must lock and work so the driver can maintain a safe position and control reach. A bus also needs functioning interior lighting for passenger safety, so both defects bar operation.