I used Google and found step by step instruction advice with photos on how to install a block heater on a Lexus, written by a amateur from his home garage. Glancing though my favourites, I can't seem to find it off hand but you'll find it if you spend some time with Google. Bottom line is the job is easy with the right tools. You'll need a female torx kit and some metric sockets to get off some of the bolts, and you'll need a couple of hours of time to drain and refill coolant and get the job done. Don't try to do it without that torx kit, as there is very little room to turn a wrench. If you eat the studs with vice grips you'll be sorry. I found the block heater from a dealer in Calgary for about $45. Local guys wanted more so I went with the Calgary Lexus dealer. It's the same part used in the non luxury models, widely available. Apparently the tricky part is to get off the freeze plug without damaging the block, but mine came off easily. It was a fun little Saturday project. The freeze plug is in the front of the engine, just above the oil filter. You'll need a mirror to find it before you start taking off parts.
