Question about 2004 Chevrolet Silverado

1 Answer

Inertia seat belts

Hi I have a 1990 work truck chevy k1500. The seat belt appears to have an inertia device to lock off when an accident occurs but, i cant get it to lock whilst stationary? Previous UK vehicles i've had will lock when yanked? The local test station have failed its yearly safety test and I wanted to tell them that they work in a different way to european vehicles. Is this the case? Please help.


Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 90 Answers

Hi yes they do have a inertia switch.tell them when they are bringing the truck into the shop to slam on the brake to test the seat belt.if it is working properly it will activate the lock.

Posted on Feb 05, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

What makes front seat belts sluggish to return?

The biggest problem is over time, the seat belts get dirt and grime in the retractor. So the best thing to do is oil or clean out the belt retractor. God-Bless

Feb 19, 2016 | Cars & Trucks

1 Answer

What triggers the seat belts to engage the lock when brakes are applied

It may not be related to the brakes, directly. There is often an accelorometer or at minimum a little lead ball. These devices work on inertia, and it usually takes a pretty sharp stop to trigger the locks...

Mar 08, 2012 | 1989 Ford Bronco

1 Answer

My seatbelts feed out properly and retract

There is a ball inside that when you brake moves and locks the seat belt. Your best bet is to drive and see if it locks when you brake hard. If not replace it. Some cars wont lock when you pull on them only when inertia takes over do they lock.

Jul 22, 2010 | 1990 Honda Prelude

1 Answer

Where is the inertia switch for a 2007 Toyota Matrix?

I searched my resources under 'inertia' and came up with Safety Belts.
Some people think that their cars have a fuel inertia switch, but it doesn't appear this one has that (unlike a Ford).
Safety Belts In crashes, people need to be retained within the occupant compartment and not be ejected, as to reduce the likelihood of serious injury. Lap and shoulder belts play an important role in this. In effect, they retain you to the occupant compartment so you decelerate with it instead of slamming into hard interior surfaces. But not all belt designs are the same. Some are easier and more comfortable to use . This is important because a comfortable belt is more likely to be used every trip. Choose a vehicle with belts that comfortably fit you and your family, and wear them. All new passenger cars have shoulder belts on inertia reels that allow upper body movement during normal driving but lock during hard braking. Some cars have a second lock, too. You can test this by tugging sharply on a belt. If it locks, it's dual locking. Some vehicles have tensioners that activate in more serious frontal crashes to reduce belt slack which, in turn, reduces the risk of head and chest impacts with hard interior surfaces.

Jul 21, 2010 | 2006 Toyota Matrix

1 Answer

The seat belt in my car dont work after i got into a car accident! what could be the problem?

Seat belts have an inertia switch, that when you stop sudden, the switch accuates to stop the belt from extending. Your's could be stuck, you may have to replace the seat belt unit. Junkyards have them.

Mar 07, 2010 | 2000 Toyota Celica

1 Answer

How do i fix the seat belt rewind on a 1999 dodge ram 1500. The belt was twisted so i removed it from the reel. In the process the reel spun releaving the spring. I tried to rewind the reel but i can't...

You may have to take this one in. It is an inertia reel and is made to retain tension at all times, if you relieved the tension, reel is "sprung" and will have to be completely disassembled, in some accidents if the seat belt is used in the impact and impact is severe enough, inertia reel has done its intended job and needs to be replace entirely.

Jan 04, 2010 | 1999 Dodge Ram

1 Answer

1999 subaru legacy seat belt will not pull out

usually inertia reel fault,has a ball that moves and locks if theres sudden movement,or angle,or simply jammed with something,have to pull B pillar (middle pillar with seat belt) cover off..trim cover,its located at the bottom of the pillar,need to look at it to see whats going on

Oct 19, 2009 | Subaru Legacy Cars & Trucks

1 Answer

Rear folding seat belt locked when folded down. Can't get back up my drivers side folding rear seat inertia reel locked up, ive tried to do the pulling trick but i think there is internal damage and wont...

get your dealer to replace the seat belt, depending on age, should be under warranty. Belt is defective. I have a g 2003 vue, and my dealer replaced the belt for no charge.

Jan 24, 2009 | 2005 Saturn VUE

1 Answer

How Do I Fix a Seat Belt That Won't Retract ford escort rear belt

What caused this to stick? has it been pulled heavily by loads in the rear? if it has it looks as if the inertia reel has slipped so the lock bearing is at an angle keeping it out.
Have you tried a couple of sharp jerks on the belt itself sometimes that does the trick, If not then find the reel possibly under side pocket or seat and check if loose.
Good Luck,
Paul 'W'
Onyer~EDson(:0) {#><U.K.

Jan 17, 2009 | Ford Escort Cars & Trucks

1 Answer

Passenger seat belt is locked, unable to provide slack

You will need to replace the belt, the inertia lock mechanism is jammed.

Jul 29, 2008 | Mercury Sable Cars & Trucks

Not finding what you are looking for?
2004 Chevrolet Silverado Logo

190 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts


Level 3 Expert

77499 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides