Skip the auto shop - Our mechanics make house calls

Q: How Does a Heads-Up Display Operate?

asked by on

How does a heads-up display operate?

A: In simplest terms the HUD or heads up displ...

In simplest terms the HUD or heads up display works by reflecting light off the windshield to display gauges and other vital driver information in order to reduce or eliminate the need to look away from the road ahead. This technology is similar to that first used by the military in planes and helicopters.

There can also be embedded phosphorus in the windshield as well, which reacts to show needed information. The HUD allows critical information to show in the driver’s field of vision without searching or losing focus on the road conditions ahead. Integrating this display system will allow for reduced stress in the same way that hand controls added to the steering wheel or bluetooth for hands free operation are enhancing safety in today’s automobiles.

Seeing lane information, GPS directions and instruments will allow for better control of the vehicle as the number of cars on the road increases and the possible distractions evolves as well. The origin of the wording for the HUD is from the fact that when it was first used with pilots they did not have to lower their heads to see the information hence they kept their “heads up.” Advancements in technology like this or other features like lane keep assist, blind spot monitoring and auto braking are helping to make the road safer for all of us.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Aftermarket wiper blades just seem to smear water on my windshield

I would recommend stoping by your local dealer and getting a pair of Nissan wiper blades for your car. Then I would get a good quality window cleaner and try and clean off the windows. If you are using a...

Q: Check Engine Diagnosis - Transmission controller Communication error codes

Hello there, many different faults can cause this combination of codes on your 2006 Chrysler PT Cruiser. When we see loss of communication codes with Transmission Control Module (TCM) internal faults, this usually means one of the following: ...

Q: How does the outside temperature display work in a 2012 Toyota RAV4?

Your car has an outside temperature display that will tell you the temperature outside of the car. This can provide you with important information for your trip. It can display temperatures from -40 degrees F to 122 degrees F. If...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.