A mother faces charges after her son was found wandering alone while she was passed out in her car.

Harris County authorities said Dawn Montgomery is charged with endangering a child and driving while intoxicated.

Houston police said a security guard found Montgomery’s 7-year-old son wandering alone in an office building parking lot located in the 1600 block of the South Loop West around 7:30 p.m. Wednesday.

Police said Montgomery was found passed out in her 2009 Kia.

She was arrested and bail was set at $25,000.

According to court documents, Montgomery was convicted for two previous DWI’s in 1993 and 2007.