For enhanced safety, the front and rear seat shoulder belts of the Subaru Legacy 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 Volkswagen Jetta doesn’t offer pretensioners for its rear seat belts.
In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the Legacy are reminded to check the back seat if they opened the rear door before starting out. The Jetta doesn’t offer a back seat reminder.
The Subaru Legacy has a standard driver’s side knee airbag mounted low on the dashboard. The knee airbag helps prevent the driver from sliding under the seatbelts or the main frontal airbag; this keeps the driver better positioned during a collision for maximum protection. A knee airbag also helps keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The Jetta doesn’t offer knee airbags.
The Legacy 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 Jetta doesn’t offer a whiplash protection system.
Over 200 people are killed each year when backed over by motor vehicles. The Legacy Sport/Limited/Touring has standard Reverse Automatic Braking that uses rear sensors to monitor for objects to the rear and automatically applies the brakes to prevent a collision. The Jetta doesn’t offer backup collision prevention brakes.
The Legacy has all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The Jetta doesn’t offer all-wheel drive.
The Legacy’s standard lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane and gently nudges the vehicle back towards its lane. A lane departure warning system costs extra on the Jetta.
The Legacy’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 Jetta doesn’t offer a driver alert monitor.
Both the Legacy and the Jetta have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, available blind spot warning systems, rear parking sensors and rear cross-path warning.
The Subaru Legacy weighs 503 to 872 pounds more than the Volkswagen Jetta. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts. Crosswinds also affect lighter cars more.
The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Subaru Legacy is safer than the Volkswagen Jetta:
|
Legacy |
Jetta |
OVERALL STARS |
5 Stars |
4 Stars |
|
Driver |
|
STARS |
5 Stars |
4 Stars |
HIC |
158 |
247 |
Neck Injury Risk |
26% |
31.7% |
Neck Stress |
281 lbs. |
354 lbs. |
Neck Compression |
57 lbs. |
58 lbs. |
|
Passenger |
|
STARS |
4 Stars |
4 Stars |
HIC |
241 |
315 |
Chest Compression |
.6 inches |
.7 inches |
Neck Stress |
147 lbs. |
152 lbs. |
Neck Compression |
51 lbs. |
141 lbs. |
Leg Forces (l/r) |
161/137 lbs. |
308/63 lbs. |
New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.
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 Legacy is safer than the Volkswagen Jetta:
|
Legacy |
Jetta |
|
Front Seat |
|
STARS |
5 Stars |
5 Stars |
HIC |
50 |
101 |
Chest Movement |
.7 inches |
.9 inches |
|
Rear Seat |
|
STARS |
5 Stars |
5 Stars |
HIC |
220 |
306 |
|
Into Pole |
|
STARS |
5 Stars |
5 Stars |
HIC |
104 |
239 |
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 Legacy is safer than the Jetta:
|
Legacy |
Jetta |
Overall Evaluation |
ACCEPTABLE |
ACCEPTABLE |
|
Driver Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Head Injury Criterion |
71 |
226 |
Neck Tension |
67 lbs. |
245 lbs. |
Torso |
ACCEPTABLE |
ACCEPTABLE |
Torso Max Deflection |
1.42 in |
1.85 in |
Torso Deflection Rate |
10 MPH |
12 MPH |
Pelvis |
ACCEPTABLE |
MARGINAL |
Pelvis Force |
1026 lbs. |
1182 lbs. |
Head Protection |
GOOD |
GOOD |
|
Passenger Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Head Injury Criterion |
269 |
274 |
Neck Tension |
67 lbs. |
89 lbs. |
Torso |
GOOD |
MARGINAL |
Shoulder Deflection |
1.34 in |
1.97 in |
Torso Max Deflection |
1.18 in |
1.69 in |
Torso Deflection Rate |
7 MPH |
10 MPH |
Head Protection |
GOOD |
GOOD |
Instrumented handling tests conducted by the National Highway Traffic Safety Administration and analysis of its dimensions indicate that the Legacy, with its five-star roll-over rating, is 3% less likely to roll over than the Jetta, which received a four-star rating.
For its performance in IIHS driver-side and passenger-side small overlap frontal, moderate overlap frontal, updated side impact, headlight, and daytime pedestrian crash prevention testing, the Insurance Institute for Highway Safety grants the Legacy the rating of “Top Safety Pick” for 2023, a rating granted to only 55 vehicles tested by the IIHS. The Jetta last would have qualified as a “Top Safety Pick” in 2017.