How do i reset the vw t5 airbag light?

If the airbag light is on in Your VW T5 then You will need to either use a dealership level scan tool or visit a dealership to let them reset the light. There is no simple way to reset the light in Your car. Volkswagen has designed their airbag system to not be able to be reset easily. This is designed this way because the airbags are one of the most important safety features in the vehicle. They want to make sure that the system is functional before the light turns off on the dash. If there is a problem with the airbag control module or one of the airbags then You will need to get it replaced to turn off the light.