2012 Acura MDX Owner's Manual - Page 31

Additional Information About Your Seat Belts The tensioners can be activated during a collision in which the front airbags do not deploy. In this case, the airbags would not be needed, but the extra tension in the seat belt could be helpful. If the tensioner is activated, the SRS indicator comes on and the tensioner must be replaced. Seat Belt e-pretensioners If your vehicle gets too close to the vehicle ahead of it in your lane, the driver's e-pretensioner slightly retracts the seat belt to alert the driver of the approaching vehicle. If a collision with the vehicle in front of you is likely, the e-pretensioners on both front seats retract the seat belts with enough force to properly restrain you and your front passenger. After they activate, the epretensioners release the retracted seat belts. To get the full benefit of the epretensioners, you and your front passenger must sit normally in your seats and wear your seat belts properly (see page 16). On models with Collision Mitigation Braking System™ (CMBS™) For added safety, the front seat belts are equipped with e-pretensioners that work in combination with the collision mitigation braking system™ (CMBS™) (see page 463) and the brake pedal assist function (see page 460). 24