Is your pretensioner or buckle deployed ? tightened? Shows a code? This particular service is for the one plug pretensioner/ buckle. We fully restore your pretensioner/ buckle to OEM standards. We DO NOT use resistors like many of the competitors out there, we replace the pressurized gas cartridge and the mechanism so that your pretensioner/ buckle functions and performs like a brand new one. So you can now stop buying new or used seat belts/ pretensioners/ buckles and use your existing ones after this repair service. Each seat belt/pretensioner repair comes with a full Lifetime Warranty, and if you have any questions regarding the rebuilt seat belt/ pretensioner from us you may contact us.