Follow the link below, labeled "How to replace a Lexus IS300 tail light"
Catalytic converters or oxygen sensors need replacing. Most likely you need to replace your catalytic convertor. That is what happened to me. It is getting too hot which makes your trac turn off to avoid damage.
Color codes for Lexus is300 radio
Lexus makes the IS300
depends on the year.. 2001 lexus is300 is 215 horsepower
remove bulb from in side the boot
Easy just pull out the top unit latches to it with 4 inserts.and replace bulb
how do you change the high mounted stop light on a lexus Is300?
Purchase a Purolator Cabin Filter. It comes with complete instructions.
every year Is300 transmission will fit. All E-Shift automatics are the same and all W55 5speeds are the same.
V6
http://my.is/forums/f67/is300-changing-spark-plugs-340989/