Toyota, highlander and the engine oil change reminder light reset, and this is straight out of the toyota factory service manual. So the trip light uh meter reset knob, is located below the speedometer uh turn the ignition turning this nixon switch is on and then, while it’s on press, the odo trip switch until the odo meter appears odometer meeting and then turn the ignition Switch off and then what you’re going to do is turn the instrument switch on while pressing and holding the trip reset knob hold the trip meter reset knob until the following conditions are met and five seconds have passed, the multi-information display shows resetting Oil maintenance data when the oil reset oil replacement reminder lights turn off.
The reset is complete to download the complete service manual by clicking the link below