The Acura RDX is the second Acura vehicle to feature the Advanced Compatibility Engineering (ACE) body structure which is designed to absorb energy from a collision. The RDX comes standard with six airbags, including dual front airbags, front side airbags and dual side curtain airbags. The front airbags use a dual-threshold, dual-stage technology that can adjust the timing and speed of each airbag deployment depending on the degree of impact and the driver’s or front passenger’s seat belt usage. If sensors deem the front passenger too small (less than 65 lb.), the front airbag is designed not to deploy. The front passenger’s side airbag is also designed to shut off if a child or small statured-adult is leaning into the airbag’s deployment path. In the event of a sufficient side impact or roll-over, the side curtain airbag deploys from above the door frames of the affected side, with coverage for both the front and rear occupants on that side, and stays inflated longer than if there were a collision.

Front seats have active head restraints and their seat belts are equipped with pre-tensioners and force-limiters. As of November 2006 the RDX was crash tested by the NHTSA, resulting in a perfect “5 Star” rating for driver and passenger frontal crashes, and front and rear side impacts, along with “4 Stars” for rollover.