2007 Toyota Tundra Owners Manual - Page 509
2007 Toyota Tundra Manual
Page 509 highlights
07 04.26 CAUTION Never turn off the engine to coast down hills. Your power steering and brake booster will not function without the engine running. Also, the emission control system operates properly only when the engine is running. 2007 TUNDRA from Jul. '07 Prod. (OM34463U) 491