See also:

Side impact and curtain air bags
Side impact and curtain air bags are designed to inflate when an impact is detected by side collision sensors depending on the strength, speed or angles of impact resulting from a side impact ...

2011 Hyundai Elantra review
Either I'm getting finicky in my old age or Michigan's never-ending winter is getting to me. Even though the 2011 Hyundai Elantra looked cool and handled well over hard-packed snow-covered roads, ...

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. ...