Volvo advises SRS Air-Bag modules to be checked every 10 years

The reason for the recommendation is that Volvo cannot ensure the integrity of the system beyond a service life of ten years. According to Volvo’s Technical Services, plastic parts within the SRS Air-Bag undergo ageing and the material’s characteristics may change.
Volvo’s SRS Air-Bag system is fine tuned to offer the most effective protection for the driver in a severe frontal collision and any changes to the characteristics may affect the effectiveness of the system.
Consequently, Volvo recommends customers replace the SRS Air-Bag module after 10 years.
In 1995 Volvo Trucks were the first commercial vehicle manufacturer to install Air-bags as standard on their FH range.