• Skip to main content
  • Skip to primary sidebar
  • Skip to footer
  • Home
  • About
  • Forum
  • Design Studio
  • Upholstery Jobs
  • Newsletter
  • Sponsors

The Hog Ring

Auto Upholstery Community

  • Facebook
  • Instagram
  • Twitter

Why Do Dashboards Have Fake Air Vents?

March 5, 2024 By Nadeem Muaddi

The Hog Ring - Why Do Dashboards Have Fake Air Vents?

Take a close look at your car’s dashboard and you’ll notice it has tiny vents that never blow hot or cold air. So what do they do?

The Autopian recently published a short article explaining why these vents exist — and the answer might surprise you.

The vent is there to provide airflow to a small sensor that lives behind the dash. It’s the cabin temperature sensor, and it does exactly what its name says. It’s there to monitor the vehicle’s interior temperature. You’ll mostly only find this sensor on modern vehicles from the last 40 years or so, and only on ones with proper climate control. […]

If you’re unfamiliar, climate control is a step up from basic heating and air conditioning. In a regular setup, you tell the car you want hot air or cold air and set the fan speed, and that’s what you get. Climate control is fancier. It lets you set a temperature and the system figures out what to do. It changes the output from the heater and air conditioning as you drive to maintain your selected temperature in the cabin.

To achieve this, the HVAC system needs to know what the actual temperature is inside the cabin—hence the need for a cabin temperature sensor. […]

The vents are often clearly noticeable as three small slits in the dash. This is a combination of the fact that little airflow is needed, and that designers will never draw one line where three will do. By and large the consensus seems to be it looks neater and more intentional.

Mystery solved! The vents are part of the HVAC climate control system, but don’t blow air. Instead, they provide a sensor access to the cabin to determine what the temperature is so that it can make adjustments accordingly.

To read the full article, as well as a really cool breakdown of how cabin temperature sensors work, check out: Here’s What Those Three Holes In Your Car’s Dashboard Are For.

Related Stories:

  • The Problem with Ultrasonic Welding
  • This is How Seat Belt Pretensioners Work
  • What is that Loop on the Seat Belt For?

Filed Under: Archive, Interesting Read Tagged With: Auto Trim, Auto Upholstery, Car Interior, Dashboard, HVAC

Primary Sidebar

anal porno bangbros rus porno yaşlı porno konulu porno olgun porno porno izle sarışın porno bakire sex 69 porno

THR Sponsors

NC Sewing Machines
Miami Corporation - Right Rail Ad 3
  • Albright's Supply
  • OEM+ Banner Ad - The Hog Ring
  • Hyde Leather
  • Keyston Bros
  • Douglass Interior Products
  • Leather Craft

THR Favorites

The Hog Ring - 5 Souped-Up Sewing Machines

5 Souped-Up Sewing Machines

Every auto trimmer loves his sewing machine. … [more] about 5 Souped-Up Sewing Machines

Why Bentley Trimmers Use a Fork to Wrap Steering Wheels

Why Bentley Trimmers Use Forks to Wrap Steering Wheels

Bentley Motors equips its auto trimmers with … [more] about Why Bentley Trimmers Use Forks to Wrap Steering Wheels

Auto Upholstery - The Hog Ring - Chevrolet Chevelle Door Panel

Design Studio: 1964-67 Chevelle Door Panel

In continuation of our door panel series, … [more] about Design Studio: 1964-67 Chevelle Door Panel

Auto Upholstery - The Hog Ring - 1974 Lamborghini Espada

Lambo Stitching with Brent Parker 2

Earlier this month, Brent Parker of Brent … [more] about Lambo Stitching with Brent Parker 2

Auto Upholstery - The Hog Ring - JNG Creations

Shop Profile: JNG Creations

It’s no secret that there’s a lack of … [more] about Shop Profile: JNG Creations

Auto Upholstery - The Hog Ring - Bentley Motors Leather Shop

A Visit to Bentley Motors’ Leather Workshop

We know that Bentley Motors creates some of … [more] about A Visit to Bentley Motors’ Leather Workshop

Categories

Footer

Recent Articles

  • Mercedes Reimagines Comfort with Custom Fit, 3D Printed Seat Pads
  • Wishing You a Happy Independence Day!
  • The Viral Headrest Gun Safe Is Going Nationwide with Tint World
  • TMG and Haartz to Open North Carolina Plant, Creating 125 New Jobs
  • Everything We Covered in June 2025

Recent Comments

  • Edward Munday on Hidden Mouse Nest? How to Charge for the Extra Dirty Work
  • Jack on Keyston Bros. Acquires DLT Corporation
  • Brodie Smith on Aston Martin Just Introduced a New Convertible DB12
  • THE CAPTAIN on 6 Tips for Turning Callers into Customers
  • Dmei on Star Wars Seat Covers are ‘So Wizard’

Advertise With Us!

We're always looking for companies to collaborate with. Watch this short video about the benefits of sponsorship and then email us to say hi.

Copyright © 2025 · Magazine Pro On Genesis Framework · WordPress · Log in