Seat belt repair instructions

Updated March 23, 2017

Seat belts should be maintained throughout the life and use of the vehicle. A seat belt is a critical safety feature that protects the individual who is wearing it. Even if only one seat belt in the car is defective, its presence puts everyone inside the car at risk during a quick stop or collision. In order to repair a seat belt all of the parts must be inspected and replaced as needed. In most cases it is advised to replace the entire seat belt to ensure that the entire mechanism is working correctly.

Inspect the seat belt in order to determine what needs to be repaired or replaced. The i-Car website explains that the seat belt webbing must be replaced if there is an issue with the assembly, mounting device or retractor. Also, the seat belt is considered to be defective if the webbing is faded, torn or bowing.

Check the seat belt's ability to retract and extend. The i-Car website explains that the issue could be associated with twisted webbing, dirt or debris build-up, or a damaged retractor. Any specific issues should be noted and resolved once the seat belt inspection is complete.

Inspect all of the seat belt's mechanical parts, including the buckle, retractor, the D-rings, D-ring mounts and anchors. The i-Car website explains that any damaged or malfunctioning parts must be replaced in order for the seat belt to work correctly. In most cases, it is best to replace the entire seat belt to ensure that all of the parts are effective.

Slide one hand along the seat belt until the casing is reached. The Auto Media website explains that the casing should be removed using a screwdriver. Once the casing is removed, use a wrench to remove the mounting bolts that attach the seat belt to the vehicle.

Remove the bolts that secure the shoulder harness. Follow the shoulder harness and remove the bolts at the other end as well. Insert the new harness and secure it with new bolts.

Unbolt the old anchor and replace it with a new anchor. Once the new parts are secured, attach new mounting bolts and snap the original casing back into place. Test the seat belt to make sure that everything works before driving the vehicle.

Things You'll Need

  • Replacement seat belt
  • Wrenches
  • Screwdrivers
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About the Author

Jennifer Simon has been a copywriter since 2007, a copyeditor since 2004 and currently teaches English Composition at Full Sail University. Her edited articles have appeared in "The Washington Post," "The Huffington Post" and "The Network Journal." Simon has a Master of Arts degree from Duquesne University with a focus in modern English grammar, linguistics and editing.