Your airbag light should turn on when you start your car and then go off to show that the system works. If it stays on, there’s a problem, and your airbags might not deploy in an accident.

A few things can trigger an SRS airbag light to stay on. For example, coins can enter the seat belt buckle mechanism and activate the sensor.


If you see this light, it means there is a problem with your vehicle’s Supplemental Restraint System (SRS), which includes airbags and seatbelts. If the light stays on or turns on while driving, this indicates a serious issue that could cause airbags to deploy unnecessarily in an accident, which can be very dangerous. Fortunately, there are a few ways to reset the SRS light in your car so that it goes off again.

The first step is to shut off your engine and wait a few seconds, then turn it back on (depending on the model of your car; this may be done with a button or a classic key turn ignition). This will give everything time to reset and should make the warning light go away.

Another reason for air bag sensor light on is if your car’s backup battery has been depleted. The SRS computer uses this to retain the data it gets from crash sensors, and if the battery is low or dead, the warning light will turn on. Recharging the backup battery and resetting the computer should correct this.

Water damage is also a common reason the airbag light might turn on. The SRS module may have water inside, which can corrode its components and trigger the airbag light. This can be caused by driving through water or even by heavy rains. Getting the module replaced as soon as possible is important to avoid any safety risks.


Your car’s airbags are one of your vehicle’s most important safety features. If there is a problem with the system that controls them, it’s best to get it checked out as soon as possible.

Some problems are easily identified and fixed. Others may require a bit more investigation and a reset to the SRS computer. The SRS (Supplemental Restraint System) control module acts as the brain of your airbags. It processes information from various sensors and determines if the collision warrants the deployment of the airbags. When a sensor is defective, or the computer has a software error, it will generate an error code that activates your SRS light.

Another sensor commonly a source of airbag warning lights is the passenger seat airbag switch. This is located in the front passenger seat and helps to detect if the seat belt is fastened. If this sensor becomes dirty or has a coin inside, it can cause the car to think someone is sitting in the seat and turn on the airbag light.

You can check the sensor by putting a seatbelt on the passenger and checking to see if you hear a click. You can clean the seat belt switch and reset it to the SRS computer if you do not.

Weight Sensors

When your airbag light turns on, it’s a serious issue you shouldn’t ignore. Airbags are designed to protect you during a crash and must work correctly. If the airbag light turns on, it’s important to know what is causing it so you can take your car to an auto repair shop as soon as possible.

One common reason your airbag light might come on is that the seatbelt sensor does not detect that you’ve fastened your seatbelt. This is a problem because the airbag will not deploy if this doesn’t happen. 

Another reason your airbag light might turn on is that the weight sensors need to be calibrated properly. The performance of the weight sensors depends on the material and manufacturing process they are made from. The most common materials for weight sensors are strain gauge base material, elastomer material, patch adhesive, sealant material, and high-purity constant.

In addition to calibration, weight sensors also need regular maintenance. The sensitivity of the sensors can be compromised if they are not cleaned regularly and protected against moisture. For this reason, the weight sensors must be cleaned and protected with anti-corrosive chemicals and lubricants. They must also be properly mounted to prevent the base from absorbing excessive stress during use and compromising its performance.

Control Module

The airbags in your car are hugely important safety features, so if your airbag light is on, you should never ignore it. This warning light is part of the Supplemental Restraint System (SRS), which includes your seat belts, and it indicates that there is a problem with either of these components or the system that operates them. It may not be a major issue but should be addressed soon to avoid further complications.

Your airbags and SRS are controlled by sensors that work together to detect a crash, deploy the airbags, and keep your vehicle safe. These sensors can become misaligned or damaged, sending a false signal to the SRS computer and triggering the airbag light to turn on. It’s often difficult to identify the source of this problem on your own, so it’s best to take your vehicle to a professional mechanic.

Aside from the obvious problems with the airbags, there are many other reasons your SRS or airbag light might turn on. The most common cause is a low battery, which can cause the airbag light to come on if the car doesn’t receive sufficient power to operate its systems. If the battery is drained, it must be recharged or replaced. Other causes include physical damage to the airbag sensor, which can also lead to a light being illuminated. The airbag module can also get damaged by water, so driving your car through clean, dry waters is important to avoid any potential issues.