Airbag-Deployment Cars: What the Repair Really Involves

At auction, "airbags deployed" can turn a cheap-looking car into an expensive repair. A front hit with minor body damage might be a bargain if the airbags stayed put. The same hit with airbags deployed often isn't. Here's why.

01What has to be replaced after a deployment

When airbags deploy, it's not just the bag that needs replacing. Depending on the car, a repair can involve:

• The airbag modules that deployed: driver (steering wheel), passenger (dash), knee bags, side and curtain airbags.
• The dashboard, if the passenger airbag burst through it. Many cars need a new dash panel, and some need the whole dash.
• Seat belt pretensioners, which fire in a crash and lock the belts. Usually replaced.
• The airbag control module (sometimes called the SRS or occupant restraint module), which stores crash data and often has to be replaced or reset.
• Crash sensors in the front and sides.
• The clock spring in the steering column.
• Headliner and pillar trim if curtain airbags deployed.
• Seats if seat-mounted side airbags deployed.
• Wiring connectors that may be damaged.

Add the body damage that caused the deployment, and the bill climbs fast.

02Why it costs so much

• Lots of parts: a modern car can have six, eight, ten or more airbags.
• Labor: dash replacement is a lot of hours.
• Programming: many modules need to be programmed to the car with a scan tool.

That's why a deployment often totals a car that would otherwise be repairable.

03Safety rules you don't cut corners on

• Follow the manufacturer's repair procedures. Airbags are safety equipment.
• Used airbags: rules vary by state, and many shops won't install salvaged airbag modules. Never install a used airbag of unknown history.
• Counterfeit airbags are a real problem in the parts market and can fail or injure people. Buy from reliable sources.
• Never cover an airbag light or install fake resistors to clear it. It's dangerous and in many states illegal, and it can make a car impossible to sell honestly.
• Rebuilt title inspections often check that the airbag light is off. See rebuilt-title inspections.

04How to price it at auction

1. Look at every interior photo. Steering wheel, dash, side curtains, seats, knee area.
2. List every bag that deployed.
3. Price the parts for that exact car, using OEM sources.
4. Add labor and programming.
5. Add the body damage.

Sometimes it still makes sense, especially on vehicles with high resale value. Often it doesn't, and those cars are better as parts cars.

05Who they make sense for

Buyers with access to dealer parts at a discount, shops with scan tools and experience, or rebuilders who specialize in one brand.

For the bigger picture, see how to judge an auction vehicle you can't drive and pricing a salvage flip.

Photo: Abandoned car interior showing a deployed airbag and a worn steering wheel in a by Shixart1985, CC BY 2.0.

Related: Hail Truck vs. Wrecked Truck: Which One Is the Flip?