Home » Ratings

2004 GMC Sierra 1500

Large pickup
  • Moderate overlap front
    M
  • Head restraints & seats
    P
1
Antilock brakes
2
Daytime running lights
Model yearFront small overlapFront moderate overlapSideRoof strengthHead restraints & seats
2014
G
2013
G
A
M
A
2012
G
A
M
A
2011
G
A
M
A
2010
G
A
A
2009
G
P
P
A
2008
G
P
P
A
2007
G
P
P
A
2006
M
P
2005
M
P
2004
M
P
2003
M
P
2002
M
P
2001
M
P
2000
M
1999
M

Applies to 1999-2006 models

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

The 2004 GMC Sierra 1500 is a twin of the tested vehicle.

The Chevrolet Silverado 1500 and GMC Sierra 1500 were redesigned during the 1999 model year (the previous design extended into the early 1999 model year). The Classic nameplate was added in the 2007 model year to distinguish what effectively are carryover 2006 models from the redesigned 2007 Silverado 1500 and Sierra 1500.

Note: These ratings do NOT apply to the redesigned 2007 Chevrolet Silverado 1500 and GMC Sierra 1500.

Injury measures

Measures taken from the dummy indicate a low risk of any significant injuries in a crash of this severity. Head acceleration from the belt housing hit was low.

Restraints and dummy kinematics

Dummy movement wasn't well controlled. After the dummy moved forward into the airbag, its head dropped down below the window sill. Then the head rebounded upward and hit the shoulder belt housing, which is mounted directly to the seat back. There was far too much upward movement of the steering wheel. Also, the driver seat came loose on one of its tracks and moved rearward slightly on the right side, where the safety belt buckle is anchored.

Tested vehicle specifications

Tested vehicle2001 Chevrolet Silverado LS 1500 (2wd extended cab)
Weight 4,709 lbs.
Side airbagsnone
Wheelbase144 in.
Length228 in.
Width78 in.
Engine4.8 L V8
EPA ratings16 mpg city / 20 mpg highway

How this test is conducted

Measures of occcupant compartment intrusion on driver side

Test IDCEF0107
Footwell intrusion
Footrest (cm)28
Left (cm)28
Center (cm)26
Right (cm)23
Brake pedal (cm)24
Instrument panel rearward movement
Left (cm)11
Right (cm)11
Steering column movement
Upward (cm)15
Rearward (cm)-4
A-pillar rearward movement (cm)9

Driver injury measures

Test IDCEF0107
Head
HIC-15361
Peak gs at hard contact22
Neck
Tension (kN)1.9
Extension bending moment (Nm)66
Maximum Nij 0.59
Chest maximum compression (mm)23
Legs
Femur force - left (kN)4.3
Femur force - right (kN)5.6
Knee displacement - left (mm)0
Knee displacement - right (mm)0
Maximum tibia index - left0.66
Maximum tibia index - right0.77
Tibia axial force - left (kN)2.1
Tibia axial force - right (kN)3.9
Foot acceleration (g)
Left112
Right140

Applies to 2001-06 models

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

Seat type

Seats with adjustable head restraints

How this test is conducted

Seat typeSeats with adjustable head restraints
Geometry
Backset (mm)60
Distance below top of head (mm)100
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 2001-06 models

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

Seat type

Seats with head restraint tilt lock

How this test is conducted

Seat typeSeats with head restraint tilt lock
Geometry
Backset (mm)48
Distance below top of head (mm)85
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 2001-06 models

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

Seat type

Seats with fixed head restraints

How this test is conducted

Seat typeSeats with fixed head restraints
Geometry
Backset (mm)70
Distance below top of head (mm)125
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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