Speed limitations are imposed when the total backrest angle is greater than 150 degrees or when seat is tilted forward more than 5 degrees. Drive is inhibited at 35 degrees of tilt for 17.5” seat heights and user weights up to 300 lb (HD shock required for user weight greater than 220 lb). For taller seat heights, drive is inhibited at 25 degrees of tilt. Caution should be exercised when driving in tilted and reclined positions including on ramps, uneven surfaces or non-level terrain.