rearview mirror
US /ˈrɪr.vjuː ˌmɪr.ər/
UK /ˈrɪr.vjuː ˌmɪr.ər/

1.
Rückspiegel
a mirror in a vehicle that allows the driver to see the road and traffic behind
:
•
He checked his rearview mirror before changing lanes.
Er überprüfte seinen Rückspiegel, bevor er die Spur wechselte.
•
The police car appeared suddenly in my rearview mirror.
Das Polizeiauto erschien plötzlich in meinem Rückspiegel.