2003 Lexus GS 430 User Guide - Page 228
2003 Lexus GS 430 Manual
Page 228 highlights
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.
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.