2015 Chevrolet Impala
large car / 4-door sedan
Small overlap front: driver-side
Rating applies to 2015-20 models
Tested vehicle: 2017 Chevrolet Impala 1LT 4-door
The Chevrolet Impala was redesigned for the 2014 model year. Beginning with the 2015 model year, the front-end structure was modified and the door sill was reinforced to improve occupant protection in small overlap frontal crashes.
| Overall evaluation | |
|---|---|
| Structure and safety cage | |
| Driver injury measures | |
| Head/neck | |
| Chest | |
| Hip/thigh | |
| Lower leg/foot | |
|
Driver restraints and dummy kinematics
The dummy’s head contacted the frontal airbag but then slid off the left side, leaving the head vulnerable to contact with forward structure. The side curtain airbag deployed and had sufficient forward coverage to protect the head from contact with side structure and outside objects. The side torso airbag also deployed. |
Action shot taken during the small overlap frontal crash test.
The dummy's position in relation to the door frame, steering wheel, and instrument panel after the crash test indicates that the driver's survival space was maintained reasonably well.
The dummy's head contacted the frontal airbag but slid completely off the left side, allowing the head to move into the gap in coverage between the frontal and side curtain airbags.
The driver's space was maintained reasonably well, and risk of injuries to the dummy's legs and feet was low.
Measures of occupant compartment intrusion on driver side
| Test ID | CEN1709 |
|---|---|
| Lower occupant compartment | |
| Lower hinge pillar max (cm) | 11 |
| Footrest (cm) | 8 |
| Left toepan (cm) | 1 |
| Brake pedal (cm) | 3 |
| Parking brake (cm) | |
| Rocker panel lateral average (cm) | 3 |
| Upper occupant compartment | |
| Steering column | 1 |
| Upper hinge pillar max (cm) | 6 |
| Upper dash (cm) | 8 |
| Lower instrument panel (cm) | 8 |
Driver injury measures
| Test ID | CEN1709 |
|---|---|
| Head | |
| HIC-15 | 89 |
| Peak gs at hard contact | no contact |
| Neck | |
| Tension (kN) | 1.3 |
| Extension bending moment (Nm) | 17 |
| Maximum Nij | 0.21 |
| Chest maximum compression (mm) | 17 |
| Femur (kN) | |
| Left | 0.5 |
| Right | 0.0 |
| Knee displacement (mm) | |
| Left | 0 |
| Right | 1 |
| Knee-thigh-hip injury risk (%) | |
| Left | 0 |
| Right | 0 |
| Maximum tibia index | |
| Left | 0.68 |
| Right | 0.32 |
| Tibia axial force (kN) | |
| Left | 2.0 |
| Right | 0.1 |
| Foot acceleration (g) | |
| Left | 54 |
| Right | 48 |
Moderate overlap front: original test
Rating applies to 2014-20 models
Tested vehicle: 2014 Chevrolet Impala LS 4-door
The Chevrolet Impala was redesigned for the 2014 model year. Moderate overlap frontal ratings are assigned by the Institute based on a test conducted by General Motors.
| Overall evaluation | |
|---|---|
| Structure and safety cage | |
| Driver injury measures | |
| Head/neck | |
| Chest | |
| Leg/foot, left | |
| Leg/foot, right | |
| Driver restraints and dummy kinematics |
Measures of occupant compartment intrusion on driver side
| Test ID | VTF1225 |
|---|---|
| Footwell intrusion | |
| Footrest (cm) | 4 |
| Left (cm) | 8 |
| Center (cm) | 10 |
| Right (cm) | 7 |
| Brake pedal (cm) | 2 |
| Instrument panel rearward movement | |
| Left (cm) | 0 |
| Right (cm) | 0 |
| Steering column movement | |
| Upward (cm) | -2 |
| Rearward (cm) | -8 |
| A-pillar rearward movement (cm) | 0 |
Driver injury measures
| Test ID | VTF1225 |
|---|---|
| Head | |
| HIC-15 | 230 |
| Peak gs at hard contact | no contact |
| Neck | |
| Tension (kN) | 1.1 |
| Extension bending moment (Nm) | 4 |
| Maximum Nij | 0.27 |
| Chest maximum compression (mm) | 27 |
| Legs | |
| Femur force - left (kN) | 0.6 |
| Femur force - right (kN) | 1.9 |
| Knee displacement - left (mm) | 0 |
| Knee displacement - right (mm) | 1 |
| Maximum tibia index - left | 0.55 |
| Maximum tibia index - right | 0.47 |
| Tibia axial force - left (kN) | 2.9 |
| Tibia axial force - right (kN) | 4.4 |
| Foot acceleration (g) | |
| Left | 48 |
| Right | 90 |
Side: original test
Rating applies to 2014-20 models
Tested vehicle: 2014 Chevrolet Impala LT 4-door with standard front and rear head curtain airbags and standard front and rear seat-mounted torso airbags
The Chevrolet Impala was redesigned for the 2014 model year. Side ratings are assigned by the Institute based on a test conducted by General Motors.
| Overall evaluation | |
|---|---|
| Structure and safety cage | |
| Driver injury measures | |
| Head/neck | |
| Torso | |
| Pelvis/leg | |
| Driver head protection | |
| Rear passenger injury measures | |
| Head/neck | |
| Torso | |
| Pelvis/leg | |
| Rear passenger head protection | |
Measures of occupant compartment intrusion on driver side
| Test ID | VTS1233 |
|---|---|
| B-pillar to longitudinal centerline of driver's seat (cm) | -19.5 |
| Negative numbers indicate the amount by which the crush stopped short of the seat centerline. | |
Driver injury measures
| Test ID | VTS1233 |
|---|---|
| Head HIC-15 | 316 |
| Neck | |
| Tension (kN) | 1.5 |
| Compression (kN) | 0.9 |
| Shoulder | |
| Lateral deflection (mm) | 40 |
| Lateral force (kN) | 1.7 |
| Torso | |
| Maximum deflection (mm) | 39 |
| Average deflection (mm) | 35 |
| Maximum deflection rate (m/s) | 4.20 |
| Maximum viscous criterion (m/s) | 0.67 |
| Pelvis | |
| Iliac force (kN) | 1.1 |
| Acetabulum force (kN) | 2.0 |
| Combined force (kN) | 3.1 |
| Left femur | |
| L-M force (kN) | 1.1 |
| L-M moment (Nm) | 78 |
| A-P moment (Nm) | -21 |
Passenger injury measures
| Test ID | VTS1233 |
|---|---|
| Head HIC-15 | 113 |
| Neck | |
| Tension (kN) | 0.2 |
| Compression (kN) | 0.6 |
| Shoulder | |
| Lateral deflection (mm) | 15 |
| Lateral force (kN) | 1.0 |
| Torso | |
| Maximum deflection (mm) | 19 |
| Average deflection (mm) | 14 |
| Maximum deflection rate (m/s) | 2.19 |
| Maximum viscous criterion (m/s) | 0.14 |
| Pelvis | |
| Iliac force (kN) | 0.4 |
| Acetabulum force (kN) | 2.6 |
| Combined force (kN) | 2.8 |
| Left femur | |
| L-M force (kN) | 0.4 |
| L-M moment (Nm) | 108 |
| A-P moment (Nm) | -29 |
Roof strength
Rating applies to 2014-20 models
Tested vehicle: 2017 Chevrolet Impala 1LT 4-door
| Overall evaluation | |
|---|---|
| Curb weight | 3,745 lbs |
| Peak force | 16,836 lbs |
| Strength-to-weight ratio | 4.50 |
Head restraints & seats
Seat type: Power leather seat
| Overall evaluation | |
|---|---|
| Dynamic rating | |
| Seat/head restraint geometry |
| Seat type | Power leather seat |
|---|---|
| Geometry | |
| Backset (mm) | 15 |
| Distance below top of head (mm) | 17 |
| Seat design parameters | |
| Pass/fail | Pass |
| Max T1 acceleration (g) | 13.1 |
| Head contact time (ms) | 56 |
| Force rating | 1 |
| Neck forces | |
| Max neck shear force (N) | 1 |
| Max neck tension (N) | 446 |
About the head restraint & seat test
Currently, IIHS tests apply only to front seats.
Front crash prevention: vehicle-to-vehicle
Ratings are given for 2 different trim variations available on this vehicle.
Child seat anchors
Rating applies to 2015-20 models
| Overall evaluation | |
| Vehicle trim | 1LS |
| Seat type | cloth |
This vehicle has 2 rear seating positions with complete child seat attachment (LATCH) hardware.
It has 1 additional seating position with a tether anchor, a single lower anchor and the ability to borrow the second anchor from another position.
Note: When anchors are borrowed, they aren't available to use in their designated positions.
| Overall evaluation | |
| Vehicle trim | 1LS |
| Seat type | cloth |
| G | Good |
| A | Acceptable |
| M | Marginal |
| P | Poor |
| Seating positions that rely on borrowed lower anchors or have only a tether anchor available are not rated. | |
thether anchor symbol | Tether anchor |
lower anchor symbol | Lower anchors |
| Lower anchor(s) can be borrowed from adjacent positions(s) | |
| No hardware available |
Details by seating position
| 1 | |
|---|---|
| Tether anchor | |
| easy-to-find location | |
| no other hardware could be confused for anchor | |
| Lower anchors | |
| too deep in seat | |
| not too much force needed to attach | |
| easy to maneuver around anchors | |
| 2 | |
| Tether anchor | |
| easy-to-find location | |
| no other hardware could be confused for anchor | |
| Lower anchors | |
| 1 dedicated anchor and 1 that can be borrowed from seat 3 | |
| too deep in seat | |
| not too much force needed to attach | |
| difficult to maneuver around anchors | |
| 3 | |
| Tether anchor | |
| easy-to-find location | |
| no other hardware could be confused for anchor | |
| Lower anchors | |
| too deep in seat | |
| not too much force needed to attach | |
| easy to maneuver around anchors |
Seat position 21
| Lower anchor A | |
|---|---|
| Open access rated | No |
| Depth (cm) | 2-4 |
| Force (lbs) | 27 |
| Clearance angle (degrees) | 68 |
| Lower anchor B | |
| Open access rated | No |
| Depth (cm) | 2-4 |
| Force (lbs) | 33 |
| Clearance angle (degrees) | 69 |
| Tether anchor | |
| Location | Rear deck |
| Confusing hardware present | No |
| Has contrasting label within 3 inches of tether anchor |
No |
| Tether anchors can be accessed while seatback is properly positioned for use of LATCH |
Not measured |
Seat position 22
| Lower anchor A | |
|---|---|
| Lower latch is shared for this seat position | |
| Lower anchor B | |
| Open access rated | No |
| Depth (cm) | 4-6 |
| Force (lbs) | 22 |
| Clearance angle (degrees) | 54 |
| Tether anchor | |
| Location | Rear deck |
| Confusing hardware present | No |
| Has contrasting label within 3 inches of tether anchor |
No |
| Tether anchors can be accessed while seatback is properly positioned for use of LATCH |
Not measured |
Seat position 23
| Lower anchor A | |
|---|---|
| Open access rated | No |
| Depth (cm) | 2-4 |
| Force (lbs) | 32 |
| Clearance angle (degrees) | 72 |
| Lower anchor B | |
| Open access rated | No |
| Depth (cm) | 2-4 |
| Force (lbs) | 27 |
| Clearance angle (degrees) | 73 |
| Tether anchor | |
| Location | Rear deck |
| Confusing hardware present | No |
| Has contrasting label within 3 inches of tether anchor |
No |
| Tether anchors can be accessed while seatback is properly positioned for use of LATCH |
Not measured |