See also:

Glossary of tire terminology
Terms The tire suppliers may have additional markings, notes or warnings such as standard load, radial tubeless, etc. • Tire information placard: A placard showing the OE (Original Equipment) ...

Faults in the system
If the information symbol illuminates and Park assist syst Service required is shown on the information display, this indicates that the system is not functioning properly and has been disengaged. ...

Deposit control gasoline (detergent additives)
Volvo recommends the use of detergent gasoline to control engine deposits. Detergent gasoline is effective in keeping injectors and intake valves clean. Consistent use of deposit control gasolines ...