Why There’s an Extra Loop on Your Seat Belt

Reviewed by

Anthony Harlin, ASE Certified Master Automobile Technician

Technical Reviewer at CarParts.com

Written by CarParts.com Research Team - Updated on April 5th, 2024

Reading Time: 3 minutes
Summary
  • The loop on your seat belt is called an energy management loop, and it’s designed to rip in the event of a collision to prevent the actual seat belt from tearing.
  • The energy management loop also prevents the buckle from sliding down to the floor.
  • The driver’s seat belt comes with a button instead of an extra loop because the latter increases the risk of the driver colliding with the steering wheel.

If you often ride shotgun or sit in the backseat, then you’ve probably noticed that extra loop of fabric on the passenger seat belt. This minor detail might not seem like a big deal, but it’s actually a pretty important safety feature that can mean life or death.

What Is the Loop on a Seat Belt For?

Also known as the energy management loop, the seat belt loop isn’t just for show. It actually has two important functions.

Provides Added Protection

For one, that extra loop provides your passengers with extra protection. Those few extra inches of fabric help soften the blow of an impact by tearing in the event of a crash.

During an accident, the force of a collision can push your body forward, causing your seat belt to rip and send you flying from your seat. A seat belt loop can prevent this all from happening by acting as a failsafe that’s designed to rip open first so your actual seat belt stays intact.

Keeps the Buckle From Sliding Down

Isn’t it annoying when loose change rattles on your seats and slides to the floor? Well, it’s even more annoying when it happens with your seat belt’s buckle, which is exactly what would happen without that loop.

If you look at your seat belt buckle, you’ll notice that it’s at a convenient height for use. That’s because the loop stops the buckle from sliding down and hitting the floor.

Why Is There No Loop on the Driver’s Seat Belt?

If your vehicle comes with those extra loops, then you’ve probably noticed that the driver’s seat belt doesn’t have this feature. This is because the loop does more harm than good when it comes to the driver.

When you’re behind the wheel, those few extra inches put you at a higher risk of injury. You’re likely to lurch forward and hit your head on the steering wheel, which happens a lot more frequently than you’d expect in a car crash.

What Is the Button on a Seat Belt For?

Instead of an extra loop, manufacturers typically install a plastic button on the driver’s seat belt near the buckle. This button keeps the buckle from sliding down while preventing the driver from colliding with the steering wheel during a collision.

Do All Vehicles Have an Extra Loop on the Seat Belt?

Seat belt loops might be common among modern cars, but they aren’t a standard feature on all vehicles. Some manufacturers skip the loops and instead install seat belt buttons on both the driver’s and passengers’ seat belts.

If your vehicle doesn’t come with that extra loop, don’t panic. Plenty of vehicles that have seat belt buttons instead of loops still receive high safety ratings from the National Highway Traffic Safety Administration (NHTSA).

Can You Install a Seat Belt With a Loop?

Yes, you can. You’ll have to replace the entire seat belt if you want to install one with an energy management loop, but it’s a relatively easy task you can do on your own.

Just be sure to leave your driver’s seat belt as it is. You can replace the old seat belts of your passengers with new ones that come with safety loops, but don’t do the same for your driver’s seat belt.

Otherwise, you’d be putting yourself and whoever drives your vehicle at greater risk of colliding with the steering wheel during an accident.

How Much Do Replacement Seat Belts Cost?

If your seat belt is torn, frayed, or damaged in any way, you should replace it as soon as possible because it won’t hold you properly. Some manufacturers also have extended warranties on seat belts and may even have long-term warranties.

There’s no shortage of seat belts on the market, so you can pick according to your budget and the style you want. Seat belts can cost anywhere from $30 to $240, with the final price depending on factors like the product’s brand and your vehicle’s year, make, and model.

If your seat belt is torn, frayed, or damaged in any way, you should replace it as soon as possible because it will no longer hold you properly. Some manufacturers have extended and long-term warranties on seat belts.

Anthony Harlin, ASE Certified Master Automobile Technician

Can Seat Belt Covers Affect the Safety Loop?

Some people think seat belt covers might get in the way of seat belt loops, but it’s actually unlikely for that to happen. In a collision, the seat belt cover will probably tear under pressure alongside the energy management loop.

About The Author
Reviewed By Anthony Harlin, ASE Certified Master Automobile Technician

Technical Reviewer at CarParts.com

Tony Harlin is a Master Gas and Diesel Diagnostic Technician with over 18 years of experience. He works full-time at a large independent automotive shop as a driveability and repair technician working on all types of vehicles with a focus on diesels. ASE certifications include A1-A9, L1 and L2, as well as X1.

Written By CarParts.com Research Team

Automotive and Tech Writers

The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com's thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.

Any information provided on this Website is for informational purposes only and is not intended to replace consultation with a professional mechanic. The accuracy and timeliness of the information may change from the time of publication.

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CarParts.com Research Team and Anthony Harlin, ASE Certified Master Automobile Technician
Tags: seat-belt