See also:

ENGINE OIL LOW — ADD OIL
This message displays when the engine oil level is too low. Check the oil level. See Engine Oil. ...

Jump Starting (On-board with eAssist Only)
If the vehicle fails to crank, it may be jump started by using the eAssist battery to charge the 12-volt battery. Use the following procedure to activate the on-board jump start using the DIC ...

Overview
The Buick Rendezvous, introduced in the spring of 2001 as a 2002 model year vehicle and produced through the present, is a sport utility vehicle produced by the Buick division of General Motors. ...