# What Is The Small Window On The Top Of A Semi-Truck Cab For?

> Passing a semi-truck on the highway, your eyes might be more drawn to the trailer on the back than the cab pulling it — especially if its plastered with pictures of snack cakes or images of fast food.

- **Source:** [SlashGear](https://www.slashgear.com/1984240/what-is-the-small-window-on-top-of-semi-truck-cab/?utm_source=gearopen.com&utm_medium=referral&utm_campaign=feed&utm_content=68e3b8fefef50e7c74aec084)
- **Published:** 2025-10-06
- **Category:** Cars
- **Tags:** #semi #truck #small #cabs #sleeper #window #actually #aren
- **Canonical:** http://localhost:4321/a/68e3b8fefef50e7c74aec084

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_GearOpen's distilled summary. The full original article is published at SlashGear (source link above); GearOpen does not republish the source's full text._