See also:

Using HomeLink
To operate, simply press and release the programmed HomeLink button. Activation will now occur for the trained device (i.e., garage door opener, gate operator, security system, entry door lock ...

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 ...

Fuses in the engine compartment
When replacing fuses, be sure to replace a blown fuse with a new one of the same color and amperage (written on the fuse). ...