The Giants didn't have a turnover in the first half, while the Lions gave away the ball twice in the first half. It was costly each time.
Manning's 20-yard pass to Jernigan gave the Giants a 10-3 lead after Bush's fumble. Jernigan, a third-year receiver, took advantage of more playing time with Victor Cruz out after left knee surgery Thursday. Detroit cornerback Bill Bentley was beaten by Jernigan on the play and hit by safety Louis Delmas, who gave his teammate a concussion.
Brown's 52-yard field goal put New York ahead by double digits with 9 seconds left in the half. The kick came two snaps after Lions safety Don Carey got a delay-of-game penalty.
Detroit's Jeremy Ross returned the first punt of the second half 50 yards to set up a 1-yard TD run by Joique Bell to make it 13-10.
Lions defensive tackle Nick Fairley sacked Manning in the end zone to pull the Lions within a point late in the third quarter.
Detroit went ahead for the first time on the ensuing possession. Rookie running back Theo Riddick ran for a 2-yard TD and Fauria caught a pass for a 2-point conversion to give the Lions a 20-13 lead.
The Lions, though, blew it — and their chance to possibly win their first division title since 1993.
AP NFL website: www.pro32.ap.org
Follow Larry Lage on Twitter: http://www.twitter.com/larrylage