The Nissan Sentra has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags help prevent the driver and front passenger from sliding under their seatbelts or the main frontal airbags; this keeps them better positioned during a collision for maximum protection. Knee airbags also help keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The Impreza doesn’t offer a front passenger side knee airbag.
In a Vehicle-to-Vehicle Frontal Crash Prevention 2.0 test conducted by the Insurance Institute for Highway Safety (IIHS), the Nissan Sentra achieved a “Acceptable” rating - the second highest possible - for its performance in forward collision warning and automatic braking systems, demonstrating its excellent capabilities in preventing collisions. The Subaru Impreza has not been tested.
Over 200 people are killed each year when backed over by motor vehicles. The Sentra SL has standard Rear Automatic Braking that uses rear sensors to monitor for objects to the rear and automatically applies the brakes to prevent a collision. The Impreza doesn’t offer backup collision prevention brakes.
The Sentra (except S/SV) offers an optional HD Around View® Monitor to allow the driver to see objects all around the vehicle on a screen. The Impreza only offers a rear monitor.
The Sentra has a standard blind spot warning system that uses sensors to alert the driver to objects in the vehicle’s blind spots where the side view mirrors don’t reveal them and moves the vehicle back into its lane. A system to reveal vehicles in the Impreza’s blind spot costs extra.
To help make backing out of a parking space safer, the Sentra has standard Rear Cross Traffic Alert and Rear Automatic Braking on the SL automatically engages the brakes to help avoid a collision. Subaru charges extra for Rear Cross Traffic Alert on the Impreza and the Impreza’s Rear Cross Traffic Alert does not include automatic braking.
Both the Sentra and the Impreza have standard driver and passenger frontal airbags, front and rear side-impact airbags, driver knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems and rearview cameras.
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 Sentra is much safer than the Impreza:
|
|
Sentra |
Impreza |
| Overall Evaluation |
GOOD |
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 |
| Restraints |
GOOD |
GOOD |
|
|
Rear Passenger Injury Measures |
|
| Chest Rating |
|
|
| Thigh Rating |
GOOD |
GOOD |
| Restraints |
ACCEPTABLE |
MARGINAL |
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 4189-pound barrier (up from 3300 pounds). The results of this newly developed test demonstrates that the Nissan Sentra is safer than the Impreza:
|
|
Sentra |
Impreza |
| Overall Evaluation |
GOOD |
GOOD |
| Structure |
GOOD |
ACCEPTABLE |
|
|
Driver Injury Measures |
|
| Head/Neck |
GOOD |
GOOD |
| Head Injury Criterion |
135 |
154 |
| Torso |
GOOD |
ACCEPTABLE |
| Shoulder Deflection |
1.1 in |
1.57 in |
| Shoulder Force |
268 lbs. |
580 lbs. |
| Torso Max Deflection |
1.14 in |
1.61 in |
| Torso Deflection Rate |
8 MPH |
10 MPH |
| Pelvis |
GOOD |
GOOD |
| Pelvis Force |
736 lbs. |
892 lbs. |
| Head Protection |
GOOD |
GOOD |
|
|
Passenger Injury Measures |
|
| Head/Neck |
GOOD |
GOOD |
| Head Injury Criterion |
154 |
194 |
| Torso |
GOOD |
ACCEPTABLE |
| Shoulder Deflection |
.79 in |
1.65 in |
| Shoulder Force |
201 lbs. |
424 lbs. |
| Torso Max Deflection |
.91 in |
1.73 in |
| Torso Deflection Rate |
7 MPH |
10 MPH |
| Pelvis |
GOOD |
GOOD |
| Pelvis Force |
558 lbs. |
736 lbs. |
| Head Protection |
GOOD |
GOOD |
The Nissan Sentra has achieved the Insurance Institute for Highway Safety’s (IIHS) highest rating of “Top Safety Pick Plus” for the 2026 model year. This distinction is based on its exceptional performance in IIHS’ rigorous battery of safety tests. Specifically, it earned a “Good” rating in the latest, more stringent moderate overlap front crash test, a “Good” result in the updated side impact test, a “Good” score in the revised pedestrian crash prevention test, and an “Acceptable” score in the revised vehicle-to-vehicle crash prevention test. The Impreza is not even a standard “Top Safety Pick” for 2026.


