From 1987 to 2017, frontal air bags saved 50,457 lives. That’s enough people to fill a major league ballpark.
Learn about the safety benefits of frontal and side air bags and why it’s so important to use a seat belt—your first line of defense. Also receive important guidance on how to safely position yourself and your passengers, as well as young ones in car seats and booster seats to prevent injury from air bags in a crash.
Air Bag Deployment
Generally, when there is a moderate to severe crash, a signal is sent from the air bag system's electronic control unit to an inflator within the air bag module. An igniter in the inflator starts a chemical reaction that produces a harmless gas, which inflates the air bag within the blink of an eye – or less than 1/20th of a second. Because air bags deploy very rapidly, serious or sometimes fatal injuries can occur if the driver or passenger is too close to – or comes in direct contact with – the air bag when it first begins to deploy.
Side Air Bags
Side-impact air bags inflate even more quickly since there is less space between the driver or passengers and the striking object, whether the interior of the vehicle, another vehicle, a tree, or a pole.
Frontal Air Bags
Sitting as far back from the steering wheel or dashboard as possible and using seat belts help prevent drivers and passengers from being "too close" to a deploying frontal air bag. This is why rear-facing car seats should not be placed in front of an active air bag, and children under 13 should be seated in the back seat.
Stay Protected: Replace Used Air Bags After a Crash
Air bags can only deploy once, so make sure you replace used air bags right away after a crash, only at an authorized repair center, and before you drive the vehicle again.
Takata air bags, installed in tens of millions of U.S. vehicles, are subject to recall due to a safety defect that may cause them to explode and result in serious injury or death. If your car or truck is included in this list of Takata air bag-affected vehicles, contact your dealer for the appropriate repair. For full coverage of the Takata recall, support for consumers, and the latest news, visit NHTSA’s Recalls Spotlight.
Fake Air Bags
You count on your air bag to protect you and others in your vehicle in the event of a crash. If your vehicle is equipped with a counterfeit air bag, there is cause for concern. Counterfeit air bags have been shown to consistently malfunction in ways that range from non-deployment to the expulsion of metal shrapnel during deployment.
NHTSA has identified certain vehicle makes and models that may have these air bags. We believe this issue affects less than 0.1 percent of the U.S. vehicle fleet.
Consumers whose vehicles have been in a crash and who have replaced their air bags by a repair shop that is not part of a new car dealership within the past three years or who have purchased a replacement air bag online should contact the call center established by their auto manufacturer to have their vehicle inspected at their own expense and their air bag replaced if necessary. The responsibility for replacing a counterfeit air bag will vary depending on the circumstances around the original installation of the part.
If you are concerned and have an air bag that was replaced at a repair shop recommended by your insurance company, we recommend that you contact your insurance company. If you purchased a counterfeit air bag from eBay, it may be covered by that company’s “Buyer Protection” program. Contact eBay’s Customer Support center. You may also wish to contact your local Consumer Protection Agency or the appropriate State Office of the Attorney General to determine your rights under the law, and the Better Business Bureau or the Federal Trade Commission to file a complaint.
There are few circumstances under which the risk of sitting in front of an active frontal air bag outweigh the safety benefits. Under these circumstances, NHTSA will authorize the installation of an air bag ON-OFF switch. Authorization will be granted under the following four circumstances:
- A rear-facing infant restraint must be placed in the front seat of a vehicle because there is no rear seat or the rear seat is too small for the child restraint. (For the passenger air bag only.)
- A child under 13 years of age must ride in the front seat because the child has a condition that requires frequent medical monitoring in the front seat. (For the passenger air bag only.)
- An individual with a medical condition is safer if the frontal air bag is turned off. A written statement from a physician must accompany each request based on a medical condition unless the request is based on a medical condition for which the National Conference on Medical Indications for Air Bag Deactivation recommends deactivation. (For driver and/or passenger frontal air bag as appropriate.)
- A driver must sit within a few inches of the air bag, typically because she or he is of extremely small stature (i.e., 4 feet 6 inches or less). (For the driver frontal air bag only.)
In those instances where an ON-OFF switch is not made for a particular vehicle, NHTSA will consider allowing an air bag to be deactivated. The approval process for deactivation is more rigorous because, while an ON-OFF switch allows the driver or passenger frontal air bag to be turned on and off in appropriate circumstances, deactivation is not so flexible. Once deactivated, an air bag cannot be easily activated for those drivers or passengers who may need it.
Only authorized dealers and repair shops can install ON-OFF switches and can do so only with an authorization letter from NHTSA. If you are interested in having an air bag ON-OFF switch installed in a vehicle you own or lease (check with the leasing company first to see if installing an ON-OFF switch would violate the terms of your lease), you will need to:
- Read the brochure, Air Bags & On-Off Switches: Information for an Informed Decision (PDF, 648.74 KB) or request a copy by mail.
- Download the Request for Air Bag On-Off Switch form (PDF, 529.13 KB) or request a copy by mail.
- Before filling out the form, ensure you have read the brochure carefully: you may decide that an ON-OFF switch is not appropriate for you.
- If you decide to request an ON-OFF switch, you will need to certify on the request form that you have read the brochure and that you (or other drivers/passengers of your vehicle) fall into one or more of the high-risk groups for the air bag(s) for which you request a switch.
- Fill out and submit the request form to NHTSA at the following address:
- National Highway Traffic Safety Administration
Attention: Air Bag Switch Requests
1200 New Jersey Avenue SE.
Washington, DC 20590-1000
- National Highway Traffic Safety Administration
- For a faster response, write your phone number on the form and fax it to: 202-493-2833 or 202-366-6916. For questions, call the Air Bag Division at 202-366-6982 or e-mail Derrick.Lewis@dot.gov.
- If the form is properly and completely filled out, NHTSA will review the document and, if approved, will send you an authorization letter that you can take to your dealer or repair shop.
- Check with your auto dealer or repair shop to see if an ON-OFF switch is available for your vehicle and how much the switch will cost. If a switch is available and the dealer or repair shop is willing to install it, give the authorization letter directly to the dealer or repair business. After the dealer or repair shop installs the ON-OFF switch, they will return a form along with the authorization letter to NHTSA, indicating the work has been done for you.
The activation of an air bag in a crash is dependent on several important factors including: the characteristics of the crash (e.g., speed, other vehicles involved, impact direction); the individual vehicle air bag system's design strategy; and the crash sensor locations. Air bags are not intended to deploy in all crashes. There may be circumstances when an air bag does not deploy. Some possible examples follow:
- The crash conditions may be sufficiently moderate where an air bag would not be needed to protect an occupant wearing a seat belt. The seat belt may provide sufficient protection from a head or chest injury in such a crash.
- Many advanced frontal air bag systems automatically turn off the passenger air bag when the vehicle detects a small-stature passenger or child, a child in a child restraint system, or no occupant in the right front passenger seat.
- Some advanced side air bag systems will similarly shut off the passenger side air bag system when detecting a small-stature passenger or child in the right front passenger seat who is positioned too close to the side air bag.
- In used vehicles, a possible reason for the air bag not to deploy is that the air bag may not have been replaced after a previous crash. NHTSA recommends that air bags always be replaced after a deployment. Any air bag that fails to deploy in an injury-producing crash should be reported to NHTSA's Office of Defects Investigation for investigation of possible system defects and potential recall.
Frontal air bags are generally designed to deploy in "moderate to severe" frontal or near-frontal crashes, which are defined as crashes that are equivalent to hitting a solid, fixed barrier at 8 to 14 mph or higher. (This would be equivalent to striking a parked car of similar size at about 16 to 28 mph or higher.)
No. Placing a child in the front seat, no matter what the circumstances, comes with increased risk. NHTSA recommends that children under 13 years old ride in the back seat in the appropriate child restraint systems for their age and size: rear-facing car seats, forward-facing car seats, booster seats, or adult seat belts. For information on tweens, see our Seat Belts page.
The proper operation of some advanced frontal air bag systems is highly dependent on the pressure (also known as "loading") placed on the seat bottom by the driver or passenger. Situations that add or subtract sensed weight can result in an occupant misclassification. If the indicator light does not provide the expected result, consult your owner’s manual to find out how to correct the problem.
No. Once deployed, an air bag – whether advanced frontal or another type – cannot be re-used and must be replaced by an authorized service technician without delay.
Yes. All light vehicles (passenger cars and light-duty trucks) must meet specific safety performance criteria for dummies representing 12-month-old infants, 3-year-old toddlers, 6-year-old children, and small-stature women.
For those manufacturers electing to suppress (not deploy) an air bag for an infant or child in all crashes, the occupant-sensing devices in their advanced frontal air bag systems have been tested with child-sized dummies, representing an infant in a child safety seat and small children in and out of child safety seats, to ensure that the air bag will turn itself off.
Yes. To minimize the potential of any air-bag-related injury, NHTSA still recommends keeping a 10-inch minimum between the air bag cover (in the center of the steering wheel for drivers and on the dashboard for the right front passenger), maintaining a proper seating position, and moving the seat as far back as possible (drivers should be able to comfortably reach the pedals).
Frontal air bags have come a long way since they first appeared in the 1980s. Although those older air bags saved thousands of lives, they deployed the same way for every driver and passenger, causing injury and in some rare cases even death to children, small adults, and any unbelted occupants positioned too close to the air bag as it deployed. Today's advanced frontal air bags are better able to protect drivers and front seat passengers by using sophisticated sensing systems to determine whether, when and how much to deploy.
NHTSA is dedicated to promoting the safe use of vehicle equipment
NHTSA demonstrates its commitment to the safe use and manufacture of air bags by:
- Providing consumers information about air bags and how they work
- Testing and providing guidance on the risks of counterfeit and defective air bags
- Overseeing the compliance of automakers and suppliers with safety standards and safety recall requirements for defects and non-compliances
- Informing the public about safety defects and recalls*
- Urging vehicle owners with recalled air bags to immediately get their air bags replaced by a dealer
*In the Takata air bag recalls affecting millions of U.S. vehicles, NHTSA ordered automakers to accelerate their repair programs to fix all affected vehicles as quickly as possible. This included phasing and prioritizing when the replacement parts are required to be available to consumers since it was not possible for all of the replacement parts to be available right away and some vehicles were at much higher risk of a dangerous air bag explosion than others.
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