The sensors are automatically activated when the reverse gear is engaged.
The sound produced by the acoustic alarm becomes louder when the distance between the car and the obstacle decreases.
See also:
Main beam headlights
To change the halogen bulb, proceed as follows:
1) Remove the protection cover Cfig.
18 turning it counterclockwise;
2) Release clip A-fig. 19, remove connector B and remove the bulb C.
...
Driving style
Starting
Do not warm the engine with the car at a standstill or at idle or high speed:
under these conditions the engine warms up much more slowly, increasing electrical
consumption and emissions ...