On June 30, 1991, Kendall suffered serious leg injuries at Watkins Glen when a mechanical failure caused his Intrepid RM-1 IMSA GTP car to leave the track and crash head-on into a tire wall. This occurred along the same area of track where J. D. McDuffie of NASCAR Winston Cup fame was killed only a month later, and both crashes led to the addition of a bus stop chicane on the backstretch. Kendall spoke of this incident during Episode 4, Season 2 of the Speed Channel series, "Setup" as a "crossroads in his racing career." He returned to racing close to a year later in June 1992. He also discussed his accident on "Athlete 360", a sports medicine television show hosted by Mark Adickes.