What does 'check' warning light on instrument panel mean on daewoo tacuma

Also check manifold pressure sensor, mass air flow sensor and temperature sensors.

where is the oil coming out from? do not run engine, daewoo engines sound like they rattle when there is no oil pressure.

put it up in the air and have a good look around ,most likely is a connection ??

this is the check engine light, it indicates that a fault exists in the electronic engine controls, have a test of the system run to get the fault code for the light.

Transmission warning light :)

Without knowing the year of your truck, I'm assuming that it is a 2000 or newer and has a message center on the left side of the of the instrument panel.

If it was an orange square, with no writing in it, then it was probably the Battery warning light, which illuminates when there is a problem with the charging system. The engine coolant light would more than likely be a message that says TEMP, and the check engine light would be shaped like an engine (both would be in the message center).

Battery warning indicator.

Yellow oil can lit means you need to top up the oil. Red oil can means you have lost oil pressure.

There is sooo many problems with the 1.8ltr engine (2001) ..for example the oil ports in the cylinder head casting are way too small.. this causes clogging and obvious lack of flow and then lack of power due to compression ratio going out the window.. I've re-built quite a wee number of these puppies.. including my wife's own car..so I heartily recommend the below..
1/ THOROUGHLY FLUSH EVERY LAST BIT OF GRIME, DEBRIS, LACQUERS & OIL OUT OF ENTIRE ENGINE..
2/CHANGE FILTER & REFILL WITH SEMI-SYNTHETIC 15/40 OIL..
3/ OIL AND FILTERS MUST BE CHANGED EVERY 3,000 TO 6,000MILES TO MAINTAIN ENGINE (IF NOT BORING OIL PORTS AND QUITE SUBSTANTIAL WORK & EXPENSE)

This should give immediate effect, but you may also consider the CRANK/FLYWHEEL SENSOR.. It's NOTORIOUS.. Along with the IGNITION COIL PACK.. CONSTANTLY CRACKING HIGH TENSION LEADS..Etc...
Hope this helps someone out there..