How do you reset change oil light on a Volvo 740?

To reset the change oil light on a Volvo 740, turn the ignition key to the "ON" position without starting the engine. Press and hold the trip odometer reset button until the light blinks and then goes out. Once the light is off, release the button, and the oil change reminder should be reset. Make sure to check your owner's manual for specific instructions, as procedures may vary slightly by model year.