Question about TOD......I gather it is NOT normal for 1st segment of 3 on bar indicator always to be lit for front wheels?.....when at constant speed on dry pavement. Am I right to think under normal conditiions no power at all should go to front wheels? (mileage is also worse than average)

noticed this on worn original tires and still same on new larger geolandars 285/60/18....under hard acceleration all briefly flash and then 1st segment stays lit...irrespective of acceleration, 1st segment remains lit until coming to full stop. also notice slight rumble when in drive versus park but with new tires some of the "other" noises disappeared.
thanks for all help