3 sentences

1. 我从后视镜看到她的眼神。

   wǒ cóng hòu​shì​jìng kàn​dào tā de yǎn​shén.

   I saw her eyes in the rearview mirror.

   Source: OpenSubtitles

2. 他通过后视镜看到后面有一辆车。

   tā tōng​guò hòu​shì​jìng kàn​dào hòu​mian yǒu yī liàng chē.

   He saw a car behind him through the rearview mirror.

   Source: Dong Chinese Dictionary

3. 倒车时要特别注意后视镜的死角。

   dào​chē shí yào tè​bié zhù​yì hòu​shì​jìng de sǐ​jiǎo.

   Pay special attention to the blind spots in the rearview mirrors when reversing.

   Source: Dong Chinese Dictionary