See also:

Bulb wattage
...

Check spark plugs and ignition system
Inspect your spark plugs as described in section 7 and replace them if necessary. Also check all ignition wiring and components to be sure they are not cracked, worn or damaged in any way. ...

Programming HomeLink®
NOTICE • When programming a garage door opener, it is advised to park the vehicle outside of the garage.,. • It is recommended that a new battery be placed in the hand-held transmitter of the dev ...