2020 GMC Sierra 1500

large pickup / Extended cab pickup

2020 GMC Sierra 1500 Extended cab pickup
2019 GMC Sierra 1500 shown

Crash avoidance & mitigation

Headlights
Front crash prevention: vehicle-to-vehicle
Optional system
Superior

Seat belts & child restraints

LATCH ease of use

Other available safety features

  • Optional blind spot detection
  • Optional lane departure warning
  • Optional lane departure prevention

Key

  • G
    Good
  • A
    Acceptable
  • M
    Marginal
  • P
    Poor
  • Superior
  • Advanced
  • Basic

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

Headlights

Ratings are given for 3 different headlight variations available on this vehicle.

Trim level(s)

  • SLT trim equipped with Driver Alert II package
  • AT4 trim equipped with Driver Alert II package
  • Denali trim equipped with Driver Alert II package
Low-beam headlight typeLED reflector
High-beam headlight typeLED reflector
Curve-adaptive?No
High-beam assist?Yes
Overall rating
Distance at which headlights provide at least 5 lux illumination:
car-simpler car-simpler car-simpler car-simpler car-simpler 0 ft 100 ft 200 ft 300 ft 400 ft 500 ft 600 ft Low beams Optimal low-beam illumination High beams Optimal high-beam illumination High-beam assist credit Some glare

Low beams
On the straightaway, visibility was good on the left side of the road and fair on the right side. On curves, visibility was inadequate in all 4 tests.

The low beams created some glare.

High beams
On the straightaway, visibility was fair on the right side of the road and inadequate on the left side. On curves, visibility was inadequate in all 4 tests.

High-beam assist compensates for some limitations of this vehicle's low beams on the straightaway, on both left curves and on both right curves.

Technical measurements for this test
Trim level(s)
  • SLT trim equipped with Driver Alert II package
  • AT4 trim equipped with Driver Alert II package
  • Denali trim equipped with Driver Alert II package
Low-beam headlight type LED reflector
High-beam headlight type LED reflector
Curve-adaptive? No
High-beam assist? Yes
Overall rating
Applies to 2019-21 models
LOW BEAMS Average minimum useful
illumination distance (5 lux)		 Amount glare
exceeded threshold
Straightaway right edge 81.9 m 21.2%
Straightaway left edge 64.2 m 21.2%
250m radius right curve, right edge 53.6 m None
250m radius left curve, left edge 54.7 m None
150m radius right curve, right edge 43.8 m 24.6%
150m radius left curve, left edge 43.7 m None
HIGH BEAMS Average minimum useful
illumination distance (5 lux)
Straightaway right edge 131.1 m
Straightaway left edge 121.0 m
250m radius right curve, right edge 59.0 m
250m radius left curve, left edge 60.1 m
150m radius right curve, right edge 46.9 m
150m radius left curve, left edge 45.3 m

Trim level(s)

  • SLT trim
  • AT4 trim
  • Denali trim
Low-beam headlight typeLED reflector
High-beam headlight typeLED reflector
Curve-adaptive?No
High-beam assist?No
Overall rating
Distance at which headlights provide at least 5 lux illumination:
car-simpler car-simpler car-simpler car-simpler car-simpler 0 ft 100 ft 200 ft 300 ft 400 ft 500 ft 600 ft Low beams Optimal low-beam illumination High beams Optimal high-beam illumination Some glare

Low beams
On the straightaway, visibility was good on the left side of the road and fair on the right side. On curves, visibility was inadequate in all 4 tests.

The low beams created some glare.

High beams
On the straightaway, visibility was fair on the right side of the road and inadequate on the left side. On curves, visibility was inadequate in all 4 tests.

Technical measurements for this test
Trim level(s)
  • SLT trim
  • AT4 trim
  • Denali trim
Low-beam headlight type LED reflector
High-beam headlight type LED reflector
Curve-adaptive? No
High-beam assist? No
Overall rating
Applies to 2019-21 models
LOW BEAMS Average minimum useful
illumination distance (5 lux)		 Amount glare
exceeded threshold
Straightaway right edge 81.9 m 21.2%
Straightaway left edge 64.2 m 21.2%
250m radius right curve, right edge 53.6 m None
250m radius left curve, left edge 54.7 m None
150m radius right curve, right edge 43.8 m 24.6%
150m radius left curve, left edge 43.7 m None
HIGH BEAMS Average minimum useful
illumination distance (5 lux)
Straightaway right edge 131.1 m
Straightaway left edge 121.0 m
250m radius right curve, right edge 59.0 m
250m radius left curve, left edge 60.1 m
150m radius right curve, right edge 46.9 m
150m radius left curve, left edge 45.3 m

Trim level(s)

  • Sierra trim
  • SLE trim
  • Elevation trim
Low-beam headlight typeLED reflector
High-beam headlight typeLED reflector
Curve-adaptive?No
High-beam assist?No
Overall rating
Distance at which headlights provide at least 5 lux illumination:
car-simpler car-simpler car-simpler car-simpler car-simpler 0 ft 100 ft 200 ft 300 ft 400 ft 500 ft 600 ft Low beams Optimal low-beam illumination High beams Optimal high-beam illumination Some glare

Low beams
On the straightaway, visibility was fair on both sides of the road. On curves, visibility was fair on both right curves and inadequate on both left curves.

The low beams created some glare.

High beams
On the straightaway, visibility was inadequate on both sides of the road. On curves, visibility was inadequate in all 4 tests.

Technical measurements for this test
Trim level(s)
  • Sierra trim
  • SLE trim
  • Elevation trim
Low-beam headlight type LED reflector
High-beam headlight type LED reflector
Curve-adaptive? No
High-beam assist? No
Overall rating
Applies to 2019-21 models
LOW BEAMS Average minimum useful
illumination distance (5 lux)		 Amount glare
exceeded threshold
Straightaway right edge 92.3 m None
Straightaway left edge 53.3 m None
250m radius right curve, right edge 58.4 m 70.1%
250m radius left curve, left edge 47.1 m None
150m radius right curve, right edge 48.2 m 156.7%
150m radius left curve, left edge 39.3 m None
HIGH BEAMS Average minimum useful
illumination distance (5 lux)
Straightaway right edge 122.5 m
Straightaway left edge 108.9 m
250m radius right curve, right edge 58.0 m
250m radius left curve, left edge 58.1 m
150m radius right curve, right edge 46.7 m
150m radius left curve, left edge 46.7 m

About the headlight evaluation

Front crash prevention: vehicle-to-vehicle

System details

  • Optional Automatic Emergency Braking
  • Optional Forward Collision Alert

Package name

  • Optional Driver Alert package II package available on SLT and AT4

Overall evaluation

Applies to 2020 models

Superior
Superior
with optional equipment
  • This system meets the requirements for forward collision warning.
  • In the 12 mph test, this vehicle avoided a collision.
  • In the 25 mph test, this vehicle avoided a collision.

About the original front crash prevention test

Child seat anchors

Rating applies to 2019-23 models

Overall evaluation
Vehicle trimbase
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 only.

Overall evaluation
Vehicle trimbase
Seat type cloth
1 2 3
GGood
AAcceptable
MMarginal
PPoor
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
shared lower achors symbol
Lower anchor(s) can be borrowed from adjacent positions(s)
No hardware available

Details by seating position

1
Tether anchor
hard-to-find location
other hardware could be confused for anchor
Lower anchors
not too deep in seat
not too much force needed to attach
easy to maneuver around anchors
2
Tether anchor
hard-to-find location
other hardware could be confused for anchor
Lower anchors
none available
3
Tether anchor
hard-to-find location
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
Technical measurements for this test

Seat position 21

3

Lower anchor A
Open access rated No
Depth (cm) 2-4
Force (lbs) 15
Clearance angle (degrees) 80
Lower anchor B
Open access rated No
Depth (cm) 0-2
Force (lbs) 18
Clearance angle (degrees) 85
Tether anchor
Location Other seating position
Confusing hardware present Yes
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

2

Lower anchor A
No lower latch for this seat position
Lower anchor B
No lower latch for this seat position
Tether anchor
Location Other seating position
Confusing hardware present Yes
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

1

Lower anchor A
Open access rated No
Depth (cm) 0-2
Force (lbs) 12
Clearance angle (degrees) 81
Lower anchor B
Open access rated No
Depth (cm) 0-2
Force (lbs) 10
Clearance angle (degrees) 83
Tether anchor
Location Other seating position
Confusing hardware present Yes
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

About the child seat anchor evaluation