GM: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. PRODUCT EMISSION RECALL. DEGRADED CONNECTION BETWEEN IGNITION COIL SPARK PLUG BOOTS AND SPARK PLUGS. THIS MAY CAUSE THE ILLUMINATION OF THE CHECK ENGINE SOON LIGHT, ROUGH ENGINE OPERATION, AND LACK OF ENGINE POWER. DEALERS ARE TO INSTALL NEW SPARK PLUG BOOTS AND SPARK PLUGS. *JS UPDATED 6/18/2012 *JS UPDATED 8/6/12. *PE UPDATED 7/19/13. *PE
