For enhanced safety, the front and second-row seat shoulder belts of the Subaru Ascent have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The Chrysler Pacifica doesn’t offer pretensioners for its second-row seat belts.
The Ascent has standard Whiplash-Reducing Front Seats, which use a specially designed seat to protect the driver and front passenger from whiplash. During a rear-end collision, the Whiplash-Reducing Front Seats system allows the backrest to travel backwards to cushion the occupants and the headrests move forward to prevent neck and spine injuries. The Pacifica doesn’t offer a whiplash protection system.
With its standard EyeSight, the Subaru Ascent is better at preventing collisions with pedestrians than the Chrysler Pacifica, according to the Insurance Institute for Highway Safety:
|
Ascent |
Pacifica |
Overall Evaluation |
GOOD |
ACCEPTABLE |
|
Crossing Child - DAY |
|
12 MPH |
AVOIDED |
AVOIDED |
25 MPH |
AVOIDED |
-4 MPH |
|
Crossing Adult - NIGHT |
|
12 MPH Brights |
AVOIDED |
AVOIDED |
12 MPH Low beams |
AVOIDED |
AVOIDED |
25 MPH Brights |
AVOIDED |
AVOIDED |
25 MPH Low beams |
AVOIDED |
-6 MPH |
|
Parallel Adult - NIGHT |
|
25 MPH Brights |
AVOIDED |
AVOIDED |
37 MPH Brights |
AVOIDED |
-22 MPH |
Warning Issued-Brights |
3.3 sec |
1.4 sec |
37 MPH Low beams |
No Slowing |
No Slowing |
Warning Issued-Low beams |
1.6 sec |
No Warning |
To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the Ascent. But it costs extra on the Pacifica.
When descending a steep, off-road slope, the Ascent’s standard Hill Descent Control allows you to creep down safely. The Pacifica doesn’t offer Hill Descent Control.
The Ascent’s optional driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The Pacifica doesn’t offer a driver alert monitor.
Both the Ascent and the Pacifica have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, height adjustable front shoulder belts, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, rearview cameras, available blind spot warning systems, around view monitors and rear cross-path warning.
The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Subaru Ascent is safer than the Chrysler Pacifica:
|
Ascent |
Pacifica |
|
Driver |
|
STARS |
5 Stars |
5 Stars |
Neck Injury Risk |
21% |
29% |
Neck Stress |
229 lbs. |
230 lbs. |
Neck Compression |
8 lbs. |
56 lbs. |
|
Passenger |
|
STARS |
5 Stars |
5 Stars |
Leg Forces (l/r) |
35/30 lbs. |
440/251 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
The Insurance Institute for Highway Safety does 40 MPH moderate front offset crash tests on new cars. In this updated test, results indicate that the Ascent is safer than the Pacifica:
|
Ascent |
Pacifica |
Overall Evaluation |
ACCEPTABLE |
MARGINAL |
Structure |
GOOD |
GOOD |
|
Driver Injury Measures |
|
Head/Neck Rating |
GOOD |
GOOD |
Chest Rating |
GOOD |
GOOD |
Thigh/hip Rating |
GOOD |
GOOD |
Leg/foot Rating |
GOOD |
GOOD |
Leg Forces L/R |
427/517 pounds |
472/742 pounds |
Restraints |
GOOD |
GOOD |
|
Rear Passenger Injury Measures |
|
Head/Neck Rating |
ACCEPTABLE |
ACCEPTABLE |
Thigh Rating |
GOOD |
GOOD |
Restraints |
ACCEPTABLE |
ACCEPTABLE |
The National Highway Traffic Safety Administration does side impact tests on new vehicles. In this test, which crashes the vehicle into a flat barrier at 38.5 MPH and into a post at 20 MPH, results indicate that the Subaru Ascent is safer than the Chrysler Pacifica:
|
Ascent |
Pacifica |
|
Front Seat |
|
STARS |
5 Stars |
5 Stars |
HIC |
37 |
72 |
Chest Movement |
.5 inches |
1 inches |
Abdominal Force |
73 lbs. |
149 lbs. |
Hip Force |
274 lbs. |
395 lbs. |
|
Rear Seat |
|
STARS |
5 Stars |
5 Stars |
Spine Acceleration |
27 G’s |
54 G’s |
Hip Force |
346 lbs. |
764 lbs. |
|
Into Pole |
|
STARS |
5 Stars |
5 Stars |
HIC |
149 |
293 |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
Side impacts caused 23% of all road fatalities in 2018, down from 29% in 2003, when the Insurance Institute for Highway Safety introduced its side barrier test. In order to continue improving vehicle safety, the IIHS has started using a more severe side impact test: 37 MPH (up from 31 MPH), with a 4180-pound barrier (up from 3300 pounds). The results of this newly developed test demonstrates that the Subaru Ascent is safer than the Pacifica:
|
Ascent |
Pacifica |
Overall Evaluation |
GOOD |
ACCEPTABLE |
|
Driver Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Head Injury Criterion |
82 |
167 |
Neck Tension |
178 lbs. |
335 lbs. |
Torso |
GOOD |
GOOD |
Shoulder Deflection |
.83 in |
.94 in |
Shoulder Force |
201 lbs. |
223 lbs. |
Torso Max Deflection |
.98 in |
1.26 in |
Head Protection |
GOOD |
GOOD |
|
Passenger Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Neck Tension |
89 lbs. |
112 lbs. |
Torso |
GOOD |
ACCEPTABLE |
Shoulder Force |
357 lbs. |
424 lbs. |
Torso Max Deflection |
1.18 in |
1.97 in |
Torso Deflection Rate |
9 MPH |
12 MPH |
Pelvis |
GOOD |
POOR |
Pelvis Force |
201 lbs. |
1450 lbs. |
Head Protection |
GOOD |
GOOD |
The Subaru Ascent has achieved the Insurance Institute for Highway Safety’s (IIHS) highest rating of “Top Safety Pick Plus” for the 2024 model year. This distinction is based on its exceptional performance in IIHS’ rigorous battery of safety tests. Specifically, it earned an “Acceptable” rating in the latest, more stringent moderate overlap front crash test, a “Good” result in the updated side impact test, and a “Good” score in the revised pedestrian crash prevention test. The Pacifica was last only a “Top Safety Pick” in 2023 but no longer qualifies.