If the vehicle continues to be driven after the onset of this noise, a connecting rod or piston may break, resulting in engine damage, and perhaps engine failure, which would disable the vehicle increasing the risk of a crash.
General Motors is recalling certain model year 2010 Cadillac Srx equipped with a 2.8L V6 engine. If low octane (regular) fuel is used in the vehicle instead of the required high octane (premium) fuel as stated in the owner manual and on the fuel filler door, the combination of regular fuel usage and aggressive driving maneuvers may induce pre-ignition. If pre-ignition occurs, you may hear a pinging or knocking sound from the engine.
Dealers will reprogram the engine control module free of charge. The safety recall is expected to begin on or before June 11, 2010. Owners may contact the Cadillac customer assistance center at 1-866-982-2339 or at the owner center at www.gmownercenter.com.
