Former service route ply between Ang Mo Kio Int and Geylang Lor 1 Ter. Withdrawn in 1990s.
Reintroduced on Sunday, 25th Feb 2001 as a weekday and saturday day service between Yio Chu Kang Terminal and Shenton Way (Loop).
At the same time, Service 162# introduced as a variant to loop at Suntec City during weekday nights, saturday evenings, sundays and public holidays.
On 16th Dec 2001, Service 162 was amended to terminate at Shenton Way Terminal. Operation hours of Service 162# was brought forward to after 1pm on Saturdays. It also began calling at previously skipped stops along Bishan Rd, Upp Thomson Rd and Newton Rd.
On Monday 28 Jan 2008, Service 162# Renaming To Service 162M (Route No Change).