Under the Hood

The Under the Hood Channel explores the systems that make your car function correctly. Learn about car parts and systems and how to do routine maintenance.


There are a lot of vanilla vehicles being churned out these days. What's the deal?

As many as a third of new 2017 cars didn't come with spare tires. So what's the deal?

Will the programming of truly driverless cars prevent them from violating traffic laws? That might actually make traffic move faster.

Will the world's first commercially available gas compression-ignition engine finally be a success?

2017 has been a crazy year for hurricanes, which means it could be a crazy year for flood-damaged cars hitting the market, too. How can you spot one?

Whether diesel- or gasoline-powered cars spit out more toxins depends on the pollutant measured, a new study says.

Autonomous vehicles could prevent a lot of car accidents from occurring. And that's good news — except for one particular population relying on organ donations.

Thanks to some open source software on the internet, other people are trying it too.

Putting 300,000 miles on a vehicle may seem like an impossible goal, but there are plenty of ways to extend a car's life span.

Racecar driver Sam Schmidt was paralyzed in a car crash in 2000. Nevada just issued him a first-of-its-kind license to take his special car on the road.

Graham is what you get when an artist, a trauma surgeon and a collision expert team up to imagine what humans would like if we evolved to fit cars.

People fall asleep, have heart attacks or are otherwise incapacitated while driving all the time. How does that work in the world of semi-autonomous and autonomous cars?

On May 7, Joshua Brown died while driving his Tesla Model S with the Autopilot system engaged. What, if anything, does that mean for the future of driverless cars?

A proposed bill in New York would give police access to drivers’ phones after car accidents. Yes, texting while driving is a problem — but could this be the solution?

The Goodyear Eagle-360 concept tire, a spherical design, was unveiled at the 2016 Geneva International Motor Show — a tire for future autonomous vehicles.

Scientists propose extracting carbon dioxide out of the atmosphere to make carbon nanotubes, and then using those to make batteries, also counteracting climate change.

Looking for a smooth new ride? Ford's newest performance sedan, the 2017 Fusion V6 Sport, features pothole detection technology — allowing it to skip over potholes.

This might be the minivan that finally changes your mind about minivans. The 2017 Chrysler Pacifica Hybrid delivers 535 miles of range and up to 80 MPGe.

Looks like a sweet ride, doesn't it? Yep, these days, cars at CES rival any other crazy products on display at the massive event.

One of the coolest things it's working on? Driverless valet parking, or a system that can drop you off at the curb and then find its own parking space without you.

A driver recently tried to flee the scene of a hit-and-run, but her car turned her in.

Depending on how you spend your time in a driverless car, your likelihood of experiencing carsickness could drastically increase.

If you'd been involved in 14 fender-benders, you'd probably want to reconsider driving.

Does it feel like your new car is already old by the time it rolls off the lot? If you feel this way, remember that it's probably by design. Learn the subtle and not-so-subtle tricks car makers use to make you yearn for a new vehicle.

You've proudly driven a stick shift all your life, so you already know that manual transmissions accelerate faster than automatics. End of story. Well, that was once true, but things have changed.