See also:

Underbody
Flush the complete underside of your vehicle frequently. Keep body and door drain holes free from packed dirt. ...

Readiness for Inspection/Maintenance (I/M) testing
Some state/provincial and local governments may have Inspection/Maintenance (I/M) programs to inspect the emission control equipment on your vehicle. Failure to pass this inspection could prevent ...

Disposal of airbags and airbag equipped vehicles (including pretensioners)
Contact your authorized dealer as soon as possible. Airbags MUST BE disposed of by qualified personnel. ...