2013 Chevrolet Impala

large car / 4-door sedan

2013 Chevrolet Impala 4-door sedan
2011 Chevrolet Impala shown


Rating overview
Moderate overlap front
Side: original test
Roof strength
Head restraints & seats

Crash avoidance & mitigation

Front crash prevention
Not available

Other available safety features

  • Standard daytime running lights


  • G
  • A
  • M
  • P
  • Superior
  • Advanced
  • Basic

Some ratings use a scale of Poor to Good. Others range from Basic to Superior.

Moderate overlap front

Rating applies to 2010-13 models built after December 2009

Tested vehicle: 2010 Chevrolet Impala LS 4-door

The Chevrolet Impala was redesigned for the 2006 model year. Beginning with 2010 models manufactured after December 2009, structural reinforcements were added to the underbody and the frontal airbags were modified to improve occupant protection in frontal offset crashes (note: information about when a specific vehicle was manufactured is on the certification label typically affixed to the car on or near the driver door).

Overall evaluation
Structure and safety cage
Driver injury measures
Leg/foot, left
Leg/foot, right
Driver restraints and dummy kinematics

Action shot taken during the frontal offset crash test.

The dummy's position in relation to the steering wheel and instrument panel after the crash test indicates that the driver's survival space was maintained well.

Dummy movement was well controlled. During rebound, the dummy's head hit only the head restraint, as indicated by smeared red greasepaint.

Forces on the right foot were high enough to indicate the possibility of injuries.

Technical measurements for this test

Measures of occupant compartment intrusion on driver side

Test ID CEF1005
Footwell intrusion
Footrest (cm) 7
Left (cm) 8
Center (cm) 9
Right (cm) 6
Brake pedal (cm) 5
Instrument panel rearward movement
Left (cm) 1
Right (cm) 1
Steering column movement
Upward (cm) 3
Rearward (cm) -3
A-pillar rearward movement (cm) 2

Driver injury measures

Test ID CEF1005
HIC-15 299
Peak gs at hard contact no contact
Tension (kN) 1.1
Extension bending moment (Nm) 25
Maximum Nij 0.24
Chest maximum compression (mm) 30
Femur force - left (kN) 1.6
Femur force - right (kN) 4.0
Knee displacement - left (mm) 0
Knee displacement - right (mm) 0
Maximum tibia index - left 0.31
Maximum tibia index - right 0.72
Tibia axial force - left (kN) 1.3
Tibia axial force - right (kN) 3.9
Foot acceleration (g)
Left 85
Right 179

How the moderate overlap front test is conducted

Side: original test

Rating applies to 2009-13 models

Tested vehicle: 2009 Chevrolet Impala LT 4-door with standard front and rear head curtain airbags and standard front seat-mounted torso airbags

The Chevrolet Impala was redesigned for the 2006 model year. Beginning with 2009 models, side curtain airbags were made standard for retail and fleet buyers (they had been optional for fleet buyers previously), and side airbags to protect the drivers' and front passengers' torsos also became standard (the side torso airbags were not available before).

Two tests of the Impala were conducted, one by the Institute of a 2006 model equipped with side curtain airbags, and the other by General Motors of a 2009 model with both side curtain airbags and side torso airbags. These vehicles are rated separately, except that the structural ratings for both vehicles are based on both tests, as are rear dummy injury and head protection ratings, because no changes were made to the rear occupant compartment. Driver dummy injury and head protection ratings for the 2009 model are assigned by the Institute as part of side crash test verification.

Overall evaluation
Structure and safety cage
Driver injury measures
Driver head protection
Rear passenger injury measures
Rear passenger head protection
Technical measurements for this test

Measures of occupant compartment intrusion on driver side

Test ID CES0618 VTS1001
B-pillar to longitudinal centerline of driver's seat (cm) -11.0 -8.0
Negative numbers indicate the amount by which the crush stopped short of the seat centerline.

Driver injury measures

Test ID VTS1001
Head HIC-15 445
Tension (kN) 1.0
Compression (kN) 0.6
Lateral deflection (mm) 51
Lateral force (kN) 1.8
Maximum deflection (mm) 35
Average deflection (mm) 28
Maximum deflection rate (m/s) 4.23
Maximum viscous criterion (m/s) 0.48
Iliac force (kN) 1.2
Acetabulum force (kN) 2.7
Combined force (kN) 3.6
Left femur
L-M force (kN) 0.5
L-M moment (Nm) 67
A-P moment (Nm) 19

Passenger injury measures

Test ID CES0618 VTS1001
Head HIC-15 195 246
Tension (kN) 0.3 0.2
Compression (kN) 0.4 0.5
Lateral deflection (mm) 46 47
Lateral force (kN) 1.5 2.2
Maximum deflection (mm) 33 35
Average deflection (mm) 28 22
Maximum deflection rate (m/s) 3.10 2.84
Maximum viscous criterion (m/s) 0.45 0.56
Iliac force (kN) 1.3 2.2
Acetabulum force (kN) 3.0 4.2
Combined force (kN) 3.4 5.4
Left femur
L-M force (kN) 0.5 0.4
L-M moment (Nm) 130 81
A-P moment (Nm) 43 57

How the side crash test is conducted

Roof strength

Rating applies to 2011-13 models built after July 2010

Tested vehicle: 2011 Chevrolet Impala LT 4-door

Overall evaluation
Curb weight 3,635 lbs
Peak force 12,547 lbs
Strength-to-weight ratio 3.45

How the roof strength test is conducted

Head restraints & seats

Seat type: Manual - power seats

Overall evaluation
Dynamic rating
Seat/head restraint geometry
Technical measurements for this test
Seat type Manual - power seats
Backset (mm) 42
Distance below top of head (mm) 46
Seat design parameters
Pass/fail Fail
Max T1 acceleration (g) 10.0
Head contact time (ms) 98
Force rating 1
Neck forces
Max neck shear force (N) 57
Max neck tension (N) 477

How the head restraint & seat test is conducted
Currently, IIHS tests apply only to front seats.