The Office of Defects Investigation (ODI) opened Recall Query RQ13-001 on February 4, 2013 in response to complaints alleging that the brake lights do not operate properly on model year (MY) 2005-2008 Pontiac G6 vehicles. Complainants allege that the brake lights illuminate when the brake pedal is not depressed, and turn off once the brake pedal is applied. In addition the driver may have difficulty shifting out of PARK, or the cruise control may not engage properly. In response to ODI-€™s Information Request, General Motors (GM) submitted a significant number of warranty claims and over 1, 100 reports that potentially relate to the alleged problem. ODI is continuing its analysis of this data. One of the GM reports also alleged a vehicle crash. ODI has received a total of 314 complaints, one alleging a crash.Based on the agency's current analysis, ODI has upgraded its investigation to an Engineering Analysis (EA13-005) to determine whether the subject vehicles present a safety related defect trend, and to further evaluate scope.The ODI complaints cited above can be reviewed at: www-odi.nhtsa.dot.gov/owners/SearchNHTSAID, see the attached list for ODI numbers.