There is now a wonderful free bus service in Kuala Lumpur called GO-KL! It has 2 great routes: 1 is from Pasar Seni/ China Town to Pavillion and Bukit Bintang and the 2nd is from KLCC to Bukit Bintang. This great system was launched at the end of August, 2012 as a result of public demand. This service is also hoping to improve on the current public transport service and encourage others to park their cars and go public. GO-KL buses run from 06.00 to 23.00, Monday to Sunday.
For GO-KL route Maps have a look via this link or see below:
GO-KL Bus service routes
Images by courtesy of Spad.