Toyota 2006 Tundra Owner's Manual page 411

'06 TUNDRA_U (L/O 0508)
CAUTION
Never turn off the engine to coast
down hills. Your power steering and
brake booster will not function with-
out the engine running. Also, the
emission control system operates
properly only when the engine is run-
ning.
400
2006 TUNDRA from Oct. '06 Prod. (OM34458U)