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SRS Light – Causes (& How to Fix)

SRS Light – Causes (& How to Fix)
07 October, 2022

The SRS or airbag light is something most car owners will see on the dashboard at some point. Here’s what the SRS light means and what could cause it to illuminate

Have you ever been driving down the road and seen the SRS warning light come on? At first, your heart might sink, knowing that there could be something wrong with your vehicle.

Before you panic, it’s helpful to know what the SRS light is, what causes it to come on and what you can do to fix it.


There are quite many parts that can cause the SRS light to come on. The easiest way to determine any problems with the SRS or airbag system is to use a diagnostic scan tool.

Here are the most common causes of the SRS light:

  1. Seat Belt Latch Failure

The SRS contains sensors that monitor when the seat belts are fastened. If something has gotten into the buckle, it could be interfering with the connection.

To repair the problem, clean out the seat belt buckle of foreign objects. If you don’t see anything, spray into the buckle with compressed air.

  1. Defective Passenger Seat Occupancy Sensor

If someone is sitting in the front seat, there is a sensor that alerts the SRS system. It not only tells the sensor that someone is there, but it also reads weight.

If there is an adult in the seat, the passenger airbag will be ready to protect the occupant. However, when the sensor doesn’t work right, it can cause the SRS light to come on.

  1. Corrosion

Water damage can quickly lead to corrosion inside your vehicle. If this occurs among the SRS components, it can spell disaster. Not only can it cause the warning light to go on, but it can also affect the functionality of the system.

The only way to fix this problem is to thoroughly inspect all of the components for corrosion. Anything that is affected needs to be replaced.

  1. Bad Clock spring

This electrical connector is located inside the steering wheel. Its primary function is to maintain a connection with the SRS computer, even while the wheel is turning.

However, this part regularly suffers from a lot of abuse. If it stops working, the driver’s side airbag might not deploy during an accident. You will also get a warning with the SRS light alerting you to the situation.

  1. Dead SRS Computer Battery Backup

The SRS computer needs a backup battery to retain the data it receives. This battery continues working even when the vehicle is off.

If the battery is low on power or dead, it can cause the SRS light to go on. The only way to repair this situation is to install a new battery.

  1. Previous Accident

Your SRS light might go on after an accident if the airbags did not deploy. When a collision occurs, the system was likely triggered through the crash sensors.

However, if something malfunctioned, causing your airbags to fail, a fault will be sent to the computer. The result is the SRS light telling you that the computer needs to be reset.

  1. Faulty SRS Computer

Over time, all electrical components fail. The SRS computer is no different and is not immune to malfunctioning. Heat, excessive vibration, age and water damage can all lead to its demise.

If the SRS light comes on because of a dead computer, the only repair is a replacement.

How Do You Reset the SRS Light?

You should never just turn off the SRS light. This doesn’t fix any of the problems; it only stops the alert from occurring. The only time you should reset the SRS light is after you repair the initial problems.

With an OBDII scanner, you can erase the trouble codes and reset the light. However, not all scanners come with this capability. Before you purchase one, make sure it can read and erase SRS codes.


No, it’s not a good idea to drive with the SRS Light on. Your vehicle will still operate with the SRS light on. However, if your SRS light is illuminated the airbag system will not function in case of an accident.

We recommend getting to the service station immediately to find out what the problem is. If you have a code scanner, you might be able to read the DTCs yourself.

Additionally, driving with the SRS light on could cause trouble with the insurance company. If you get into an accident and the black box recorder is looked at, the insurance provider will know that you didn’t protect the occupants, leaving you liable for the damages.

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