Only the Mountaineer’s top-heaviness and tendency to roll—inherent to all SUVs—keep the experts at TheCarConnection.com from giving the 2009 Mercury Mountaineer a perfect 10 in the safety category.
The National Highway Traffic Safety Administration (NHTSA) bestows the 2009 Mercury Mountaineer five out of five stars for front and side impact protection, but only three stars for rollover resistance. The Insurance Institute for Highway Safety (IIHS), which conducts more rigorous tests, awards the Mountaineer its top rating of "good" in frontal offset tests, but the second-highest rating of "acceptable" for side impact tests. In rear impact tests, however, the Mercury Mountaineer receives the lowest rating of "poor."
Kelley Blue Book reports that the Mercury Mountaineer 2009 "has an impressive array of safety features, with crumple zones in the front fenders, three-point seat belts at all positions and a side-curtain airbag system that deploys to cover seventy-five percent of the side glass area," plus the "standard Safety Canopy airbag system protects passengers in the event of a rollover or side collision." According to Cars.com, "antilock brakes, side-impact and side curtain airbags that protect first- and second-row occupants are standard" for Mercury Mountaineer 2009, "as is an electronic stability system." The Mercury Mountaineer 2009 stability control also has rollover mitigation, which uses traction control and stability control to lower the risk of a rollover.
ConsumerGuide reports that Mercury Mountaineer "outward visibility is hindered somewhat by thick roof pillars, but the 2nd- and 3rd-row headrests fold to reduce the obstruction"; in any event, Kelley Blue Book notes an "optional Reverse Sensing System alerts you to objects behind the vehicle that are out of the range of the rearview mirror" available for the 2009 Mercury Mountaineer.