Oil light on dash flashes

If it is running rough & no check engine light on then the first thing I would to is tune it up. If you have a check engine light then pay someone to diagnosis it & go from there. Usually when the light comes on there is a more promenient issue; that is WHY the light continues to flash.

Get the fault codes read first to get an indication on where you should start

With the engine off turn the key to on. Then turn the key just past on, but before the starter starts. This should turn all the dash indicator lights on.

Information taken from: http://www.idavette.net/tech/oilreset.htm

[quote]
The "Change Oil" indicator is reset by using a sequence of Driver Information Center (DIC) key presses as follows:

1. Turn ignition "ON", but do not start engine. (ALDL pin "G" should NOT be grounded.)
2. Press the "ENG/MET" button and release, then, within 5 seconds, press it again.
3. Within 5 seconds of Step 2, press and hold the "GAUGES" button. While the button is held, the "Change Oil" indicator will flash.
4. Continue holding the "GAUGES" button until the "Change Oil" indicator stops flashing and goes out, indicating successful completion of the reset cycle. This should take about 10 seconds.
If it does not successfully reset, turn ignition "OFF" and repeat the procedure from Step 1.
[/quote]

1. Turn the ignition to ON; do not start the engine.
2. Fully depress and release the accelerator pedal slowly 3 times within 5 seconds.
If the CHANGE OIL indicator flashes, the system is resetting.

3. Turn the ignition to OFF after the indicator has finished flashing, then start the vehicle. If the CHANGE OIL indicator comes back on, the engine oil life monitor has not reset; repeat the procedure.

On a 2008, thurn the key to the ACC position. Hold down the reset button for about 10sec on the dash until the whole display starts flashing.
When the whole display is flashing, hold down the reset button again for about 10sec. the OIL LIFE will go to 100%.

Hold mileage reset button down and turn key on. continue to hold button until dashes stop flashing and light goes out (approx. 10 seconds).

to reset the the light , turn ignition switch to off position , press and hold the select/reset trip button , while holding the button turn ignition switch to the on position , with the engine off , continue to hold the reset button for about 10 seconds until indicator resets , your done.
you will see like 5 dashs blink then 4 then 3 then 2 then 1 then all flash . problem solved .

my 2003 s-10 did the same thing. my problem was a low battery.i put a new battery and have not had a problem since.

make sure it doesn't flash then