2011 Honda Odyssey Owner's Manual - Page 640
2011 Honda Odyssey Manual
Page 640 highlights
Floor Mats Front To Unlock To Unlock Rear To Unlock KNOB Driver's side KNOB Passenger's side KNOB The floor mats that came with your vehicle hook over the floor mat anchors. This keeps the floor mats from sliding forward (possibly interfering with the pedals), or backwards (making the front passenger's weight sensors ineffective). To lock or unlock each anchor, turn the knob. If you remove a floor mat, make sure to re-anchor it when you put it back in your vehicle. If you use non-Honda floor mats, make sure they fit properly and that they can be used with the floor mat anchors. Do not put additional floor mats on top of the anchored mats. Make sure the rear floor mats are also properly hooked. If not, the floor mat will interfere with the seat operation and make the front passenger's weight sensors ineffective. Maintenance 2011 Odyssey 637