An airbag light that stays on means the airbags may not deploy in a crash. Common causes and why it should be fixed promptly.
Looking for more detail? Our full guide covers this topic in depth, with step-by-step advice and sources.
The supplementary restraint system (airbags and seatbelt pretensioners) has a fault and may not work.
What it looks like
A seated person with a circle in front, or SRS. Colour: Red or amber.
Common causes
- Faulty seat wiring connector, often after seats are moved
- Clock spring fault in the steering wheel
- A previous crash or failed sensor
- Low battery voltage during starting
What to do
- The car will still drive normally, but get it checked soon.
- Do not try to remove airbags yourself; they are explosive devices.
- A garage with the right diagnostic tools can read the fault.
Can I keep driving?
Yes, but your airbags may not protect you until it is fixed.
MOT
An airbag warning light that shows a fault is an MOT fail.
Symbols vary slightly between makes. Always check your owner's handbook. General guidance only; if in doubt, call your breakdown provider.
Sources and further reading
Facts checked on 20 October 2026. Spotted an error? Tell us and we will correct it.