CarOnPhone Car Blog How Long Do Airbags Last? A Simple Guide To Maintenance And Replacement
CarOnPhone Car Blog How Long Do Airbags Last? A Simple Guide To Maintenance And Replacement

How Long Do Airbags Last? A Simple Guide To Maintenance And Replacement

Melburn Ferrao

16 Jul 2025, 10:43 AM

How Long Do Airbags Last? A Simple Guide To Maintenance And Replacement
Airbag lifespan is a major part of your vehicle’s overall car safety system. Airbags are designed to protect you in case of a crash, but like every other part in your car, they come with a limited life. Many drivers don’t know that airbags also need care and checks. This guide explains everything about airbag life, when to replace them, and how to maintain them for top performance.

What Are Airbags And How Do They Work?

Before learning about airbag lifespan, it is important to understand what airbags are and how they function. 

  • Airbags are inflatable safety devices that deploy during a collision. 
  • They are part of the car safety system, designed to reduce injuries. 
  • Sensors detect impact, sending signals to trigger airbag inflation within milliseconds. 
  • Airbags work alongside seat belts to cushion the body and prevent direct contact with hard surfaces. 

Types Of Airbags In Vehicles

Various types of airbags serve different protection purposes. 

  1. Front Airbags: Deployed in front-end crashes. 
  2. Side Airbags: Protect torso and head in side-impact collisions. 
  3. Curtain Airbags: Offer head protection for front and rear passengers. 
  4. Knee Airbags: Minimizes or prevents leg injuries.  
  5. Rear Seat Airbags: Increasingly seen in luxury models. 

What Is The Average Airbag Lifespan?

Many car owners think airbags last forever. But that’s not always true. 

  • Most airbags last around 10 to 15 years. 
  • For cars manufactured after the year 2000, airbags are designed to last a vehicle’s full life. 
  • Older models may need airbag replacement or inspection every 10 years. 

Manufacturers suggest checking airbag systems at regular intervals, especially after the 10-year mark. 

How To Check If Your Airbags Are Working?

How Long Do Airbags Last? A Simple Guide To Maintenance And Replacement

You can’t see your airbags, but you can still know if they are ready to work. 

  1. Check the Airbag Light:
  • When you start your car, the airbag light should come on and go off in a few seconds. 
  • If it stays on, it means there’s a problem in the system.

  1. Scan the System:
  • Use an OBD2 scanner or visit a workshop to read error codes. 

  1. Professional Inspection:
  • Get the system checked during routine servicing. 

Why Do Airbags Fail Over Time?

Just like batteries and tires, airbags can fail with age. 

Main reasons include: 

  • Moisture or Dust: Can damage the wiring or sensors. 
  • Damaged Clock Spring: This can break the connection between the airbag and the power source. 
  • Electronic Failures: Faulty control units or sensors. 
  • Rodents: Chewed wires can stop the system from working. 

Signs That Your Airbags Might Need Attention

Watch out for early signs of airbag system failure. 

  • Airbag warning light stays on. 
  • Error codes in vehicle scanner. 
  • Horn or steering buttons not working (may indicate damaged clock spring). 
  • Post-accident airbag not replaced. 

When Should You Replace Airbags?

Airbags don’t need frequent replacements, but here are times when it is needed. 

  1. After a Crash: 
    • Once deployed, airbags must be replaced. 

  2. Expired Lifespan: 
    • If your car is over 15 years old and airbags were never checked, get an inspection. 

  3. Sensor Warning: 
    • Constant airbag light means internal issues that need fixing or replacement. 

  4. Water or Flood Damage: 
    • Moisture can damage the system. 

How To Maintain Airbags For Longer Life

Simple steps can keep your airbag system working for years. 

  1. Regular Servicing:
  • Ask the technician to check airbag sensors during routine services. 

  1. Keep The Cabin Dry:
  • Prevent moisture buildup, especially during rainy season. 

  1. Avoid Dashboard Modifications:
  • Fitting accessories can block or damage airbag units. 

  1. Check Wiring and Battery Health:
  • Low battery voltage can disrupt the airbag system. 

  1. Use Quality Parts During Repairs:
  • Avoid counterfeit sensors or used airbags from old vehicles. 

Key Components To Inspect During Maintenance

A proper airbag inspection includes checking these areas: 

  • Crash sensors: Must be fully operational and correctly calibrated. 
  • Wiring harness: Should be intact and corrosion-free. 
  • Airbag modules: Checked for wear, moisture damage, or manufacturing defects. 
  • Control units (ECU): Ensure no software or hardware malfunctions. 

Can Airbags Be Repaired?

Airbags are safety devices, so repair options are limited. 

  • Deployed airbags cannot be reused or repaired. 
  • Replacement is the only solution after deployment. 
  • Damaged sensors or control modules can be repaired or replaced. 
  • Only trained professionals should service the airbag system. 

Cost Of Airbag Maintenance And Replacement

Understanding the possible expenses involved helps with planning. 

  • Airbag replacement cost: Can range from INR 30,000 to INR 1,50,000 per unit. 
  • Sensor or ECU repair: Around INR 5,000 to INR 20,000. 
  • Full airbag system replacement: INR 1,00,000 or more, depending on the car model. 

Tips To Extend The Lifespan Of Airbags

Protect your car safety system with these tips: 

  1. Avoid dashboard tampering: Never modify or hang items over airbags. 
  2. Get regular electrical checks: Faulty wiring can disable airbags. 
  3. Drive safely: Fewer accidents mean less airbag wear. 
  4. Park in shade: Heat can affect sensor sensitivity. 
  5. Don’t ignore dashboard alerts: Fix issues early. 

Conclusion

Airbags are a life-saving feature of any modern car safety system, but they are not a one-time setup. Regular checks, attention to warning signs, and timely replacement are crucial for ensuring your airbag lifespan aligns with your vehicle’s safety needs. Always follow the manufacturer’s service timeline and never compromise on safety to save cost. Prioritize inspection especially for older vehicles, and consult professionals for any airbag-related maintenance.

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car maintenance tips detailed guide safety tips

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