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2004 Chevrolet Impala

Large family car
  • Moderate overlap front
    G
  • Head restraints & seats
    P
2000 Chevrolet Impala shown
2000 Chevrolet Impala shown
1
Side airbags: driver seat-mounted combination head and torso airbag (optional)
2
Antilock brakes (optional)
3
Daytime running lights
Model yearFront small overlapFront moderate overlapSideRoof strengthHead restraints & seats
2014
G
G
2013
G
G
A
A
2012
G
G
A
A
2011
G
G
A
A
2010
G
G
A
2009
A
G
A
2008
A
G
M
2007
A
G
M
2006
A
G
M
2005
G
P
2004
G
P
2003
G
P
2002
G
P
2001
G
P
2000
G

Applies to 2000-05 models

Overall evaluation
G
Structure and safety cage
G
Injury measures
Head/neck
G
Chest
G
Leg/foot, left
A
Leg/foot, right
A
Restraints and dummy kinematics
G
Important: Frontal crash test ratings should be compared only among vehicles of similar weight.

The Chevrolet Impala was reintroduced for the 2000 model year as a somewhat smaller front-wheel-drive sedan.

Injury measures

Measures taken from the head, neck, and chest indicate low risk of injuries to these body regions in a crash of this severity. Forces on the right tibia indicate that injury to the lower leg would be possible. Acceleration on the left foot indicates that injuries to the foot would be possible.

Restraints and dummy kinematics

Dummy movement was well controlled. After the dummy moved forward into the airbag, it rebounded into the seat without its head coming close to any stiff structure that could cause injury.

Tested vehicle specifications

Tested vehicle2000 Chevrolet Impala 4-door
Weight 3,448 lbs.
Side airbagsdriver seat-mounted combination head and torso airbag
Wheelbase110 in.
Length200 in.
Width73 in.
Engine3.4 L V6
EPA ratings20 mpg city / 32 mpg highway

How this test is conducted

Measures of occcupant compartment intrusion on driver side

Test IDCF99014
Footwell intrusion
Footrest (cm)14
Left (cm)15
Center (cm)15
Right (cm)11
Brake pedal (cm)10
Instrument panel rearward movement
Left (cm)6
Right (cm)7
Steering column movement
Upward (cm)3
Rearward (cm)-3
A-pillar rearward movement (cm)5

Driver injury measures

Test IDCF99014
Head
HIC-15204
Peak gs at hard contactno contact
Neck
Tension (kN)1.2
Extension bending moment (Nm)13
Maximum Nij 0.22
Chest maximum compression (mm)26
Legs
Femur force - left (kN)4.7
Femur force - right (kN)3.4
Knee displacement - left (mm)4
Knee displacement - right (mm)0
Maximum tibia index - left0.79
Maximum tibia index - right0.89
Tibia axial force - left (kN)3.5
Tibia axial force - right (kN)4.0
Foot acceleration (g)
Left151
Right86

Applies to 2001-05 models

Overall evaluation
P
Dynamic rating
Seat/head restraint geometry
M
Important: Head restraints & seats ratings should be compared only among vehicles of similar weight.

Seat type

Leather bucket seats

How this test is conducted

Seat typeLeather bucket seats
Geometry
Backset (mm)60
Distance below top of head (mm)90
Seat design parameters
Pass/failFail
Max T1 acceleration (g)
Head contact time (ms)
Force rating
Neck forces
Max neck shear force (N)
Max neck tension (N)

Applies to 2001-05 models

Overall evaluation
P
Dynamic rating
Seat/head restraint geometry
P
Important: Head restraints & seats ratings should be compared only among vehicles of similar weight.

Seat type

Cloth bucket seats

How this test is conducted

Seat typeCloth bucket seats
Geometry
Backset (mm)90
Distance below top of head (mm)130
Seat design parameters
Pass/failFail
Max T1 acceleration (g)
Head contact time (ms)
Force rating
Neck forces
Max neck shear force (N)
Max neck tension (N)

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