A Nesconset man is facing a felony child endangerment charge after allegedly driving drunk with his 2-year-old son in the backseat.

Christopher Weiss, 29, was arraigned Saturday in First District Court in Central Islip. Bail was set at $25,000.

He is charged with driving while intoxicated and aggravated DWI with a child, a felony under Leandra's Law. The law was enacted in 2009 after the death of Leandra Rosado, 11, who was killed in a drunken-driving accident in Manhattan.

Weiss was arrested Friday, shortly after a concerned motorist called 911 about a 2002 Ford Focus in Huntington traveling on three tires, Suffolk County police said.

Second Squad officers stopped the Ford when it was southbound on Commack Road near Vanderbilt Parkway in Commack about 12:35 p.m., police said.

The car had significant front-end damage, police said, and where a front passenger-side tire should have been, the car was riding on just the steel rim.

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In court papers, police said Weiss had "bloodshot eyes and was giving inconsistent answers" to an officer's questions. When asked to step out of the car, Weiss was "unsteady on his feet" and had "the smell of alcoholic beverage" on his breath, police said.

Weiss' son, who was unharmed, was turned over to family members, police said.

Weiss pleaded not guilty to both charges Saturday. He told Judge Paul M. Hensley that he was a military veteran and had been unemployed for 10 months.

"I'm a stay-at-home father," said Weiss, who described himself as married with two children.

Weiss also told the judge he's currently in a treatment program. He did not provide further details.

Suffolk County prosecutors have obtained a protection order against Weiss that bars him from having contact with the 2-year-old.