For Jeep (Wrangler, Patriot, Commander, Liberty, Grand Cherokee) and many (most?) Chrysler Group vehicles after 2008, here’s the simple instructions to reset the alert “Oil Change Required”: according to wkjeeps.com/wk_oil_indicator.htm —
How to reset a service indicator
The oil change indicator can be reset using the following steps:
1. Turn the ignition key to ON but do not start the engine.
2. Slowly depress the accelerator to the floor and release it three times within 10 seconds.
3. Turn the ignition key to the OFF position.
Repeat the process if the indicator does not reset.
Similar instructions also found at seventrumpet.com/2007-2015-jeep-patriot-service-oil-light-reset/ and seventrumpet.com/reset-change-oil-life-light-on-2007-2015-jeep-wrangler-unlimited-jk/
And/or, see this YouTube video youtube.com/watch?v=pHntXkRYgDE for an illustrated re-enactment on a Jeep Commander