Understanding the Tailgate: Design, Function, and Components
- 3132BHAVANA MARAMREDDY
- Jun 21
- 2 min read
Table of Contents
What Is a Tailgate?

A tailgate is the rear access door of a vehicle, especially in pickup trucks, SUVs, hatchbacks, and commercial vans. It allows access to the cargo area or trunk and can either swing open, fold down, or lift up depending on the vehicle type.
Requirements and Functions of a Tailgate
Requirements:
Durability: Should withstand repeated use and impacts.
Ease of Use: Must open/close smoothly.
Safety: Needs secure locking mechanisms.
Weatherproofing: Should block dust, water, and wind noise.
Style: Must blend with the vehicle’s exterior look.
Functions:
Cargo Access: Lets users load/unload items.
Protection: Secures the rear storage.
Utility: May serve as a workbench or mounting area.
Sealing: Helps maintain cabin environment.
How to Open a Tailgate

Depending on the vehicle, tailgates can be:
Manual: Pull the handle to open and lower it manually.
Powered: Use a button, key fob, or foot sensor to activate an electric motor.
Side-Opening or Split: Opens sideways or in halves for better access.
Safety locks, sensors, and dampers are usually included in powered versions.
Basic Components of a Tailgate

Outer Skin – The visible exterior panel
Inner Frame – Structural panel holding internal parts
Hinges – Enable tailgate movement
Latch and Lock – Keeps the gate closed securely
Handle or Button – For manual or electric opening
Weather Strips – Seal against water and dust
Cables/Struts – Control and limit motion
Camera/Sensors – Often included in modern tailgates
What Is a Tailgate Stay?
A tailgate stay is a mechanism that supports the tailgate when it is open:
Cables/Chains: Found in trucks, prevent over-opening
Gas Struts: Used in SUVs, slow down movement and keep it open
Friction Hinges: Allow tailgate to stay in a fixed position without additional supports
These stays improve usability and prevent the tailgate from slamming or overextending.
Conclusion
The tailgate is more than just a door—it’s a functional and safety-critical part of your vehicle. Whether it's manually operated or powered with smart features, it plays a vital role in daily convenience, cargo handling, and the overall vehicle structure.
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