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2004 GMC Sierra 1500

Used 2004 GMC Sierra 1500

4.6
rating
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2004 GMC Sierra 1500 Extended Cab Exterior: 0
2004 GMC Sierra 1500 Extended Cab Exterior: 1
2004 GMC Sierra 1500 Extended Cab Exterior: 2
2004 GMC Sierra 1500 Extended Cab Exterior: 0

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2026
2004
Fuel Economy
13 - 16 combined mpg
Horsepower
195 - 325 hp
Torque
260 - 365 lb-ft
Towing Capacity
8,600 - 10,000 lbs
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2004 GMC Sierra 1500 Overview

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Sierra 1500 Extended Cab Consumer Sentiment

Owners give this generation GMC Sierra 1500 Extended Cab (1999-2007) a 4.6 out of 5 rating, which is higher than most, and 94% recommend it. These figures are based on 1659 consumer reviews, like these:

What Owners are Saying About the 2004 GMC Sierra 1500 Extended Cab

"No Better GM Truck Out There"

"These are by far the most reliable - used trucks you will find on the market. Don't buy an 07 or newer, too many mechanical and electrical problems. GM has never been the same since the 03-06 trucks. Ultra reliable, easy to get parts, timeless body style, great work horse. Crew cabs will pull 19-20 mpg on the highway no problem (with stock suspension/wheels)."

"Great vehicle"

"Very tough...very dependable !!! Never owned a better truck. This thing will pull anything and you won't even know it's back there."

"Unbelievalble reliability"

"It's a beautiful totally fabulous truck. 1500 HD SLT. Original cost $38,000 in 2002. I've towed my boat with ease for 24 years and my brake linings still have 50% left. Brakes have not been replaced. Unreal. Boat and trailer is at least 4500 lbs unloaded. The comfort is exquisit. At 110,000 miles, I replaced the alternator in 1 hour max, easy. Every possible accutrament within works like new. Just blown away after 23 years how new it looks and inside leather comfort is like new. I'm having the small dings removed, replacing the shadowed lights and making it look new. So easy. I love this truck!"

Overall 2004 GMC Sierra 1500 Extended Cab Quality

User sentiment suggests the overall quality of the 2004 GMC Sierra 1500 Extended Cab is above average for its class. Owners rated the 2004 GMC Sierra 1500 Extended Cab quality a 4.7 out of 5.

2004 GMC Sierra 1500 Extended Cab Reliability

The 2004 GMC Sierra 1500 Extended Cab receives an average consumer rating of 4.6 overall and a 4.7 for reliability, which means owners consider its reliability to be above average.

Favorite 2004 Sierra 1500 Extended Cab Features

According to drivers of the 2004 Sierra 1500 Extended Cab, here are some of its best features:

  • Reliability
  • Dependable
  • Perfect
  • Great to drive and reliable
  • HD body, true work truck

2004 GMC Sierra 1500 Extended Cab MPG by Trim

2004 Sierra 1500 Extended Cab SLT Pickup 4D 6 1/2 ft - city 13 MPG - hwy 17 MPG

2004 Sierra 1500 Extended Cab SLE Pickup 4D 6 1/2 ft - city 13 MPG - hwy 17 MPG

2004 Sierra 1500 Extended Cab Work Truck Pickup 4D 6 1/2 ft - city 14 MPG - hwy 19 MPG

2004 Sierra 1500 Extended Cab Work Truck Pickup 4D 8 ft - city 13 MPG - hwy 17 MPG

2004 Sierra 1500 Extended Cab SLE Pickup 4D 8 ft - city 14 MPG - hwy 18 MPG

2004 Sierra 1500 Extended Cab Pickup 4D 6 1/2 ft - city 13 MPG - hwy 17 MPG

2004 Sierra 1500 Extended Cab Pickup 4D 8 ft - city 13 MPG - hwy 17 MPG

2004 Sierra 1500 Extended Cab SLT Pickup 4D 8 ft - city 13 MPG - hwy 17 MPG

2004 Sierra 1500 Extended Cab Denali Pickup 4D 6 1/2 ft - city 12 MPG - hwy 16 MPG

2004 Sierra 1500 Extended Cab Safety

NHTSA Safety Rating

According to the National Highway Traffic Safety Administration (NHTSA), the 2004 GMC Sierra 1500 Extended Cab front-side driver crash test rating is 4 out of 5 stars. The front-side passenger crash test rating is 3 out of 5.

2004 GMC Sierra 1500 Extended Cab Safety Features

  • Child Door Locks: Not available
  • Child Seat Anchors
  • Driver Airbag
  • Passenger Airbag
  • Emergency & Security Services
  • Rear Parking Sensors
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2004 GMC Sierra 1500
KBB.com Consumer Reviews

4.6
Consumer Rating
Based on 1,659 Consumer Reviews
Write a Review
95%Recommend this vehicle
Value
4.6
Performance
4.7
Quality
4.7
Comfort
4.7
Reliability
4.7
Styling
4.7

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2004 GMC Sierra 1500 Values and Prices

Style
Trade-In Value
Private Party Value
Fair Purchase Price
SLT Pickup 4D 6 1/2 ft
$4,625
-
-
SLE Pickup 4D 6 1/2 ft
$1,125
$3,350
$4,025
Work Truck Pickup 4D 6 1/2 ft
$3,400
$4,900
$5,525
Work Truck Pickup 4D 8 ft
$4,300
$5,775
$6,575
SLE Pickup 4D 8 ft
$4,550
$5,825
$6,675
Pickup 4D 6 1/2 ft
$4,225
$5,900
$6,700
Pickup 4D 8 ft
$4,425
$6,150
$6,975
SLT Pickup 4D 8 ft
$5,350
$7,325
$8,325
Denali Pickup 4D 6 1/2 ft
$6,400
$8,325
$9,425
Values above are based on "Good" condition vehicles. Estimated Trade-In Values range from about $1,125 to $6,400 depending on vehicle style. Estimated Private Party Values range from about $3,350 to $8,325 depending on vehicle style. Values and prices are based on national averages and typical mileage for this model, but they can vary greatly according to mileage, condition, location, and other factors. Valid through 6/6/2026.
Trade-In Value
Trade-In Value is the amount you can expect to receive this week when trading in your vehicle at a dealership.
Private Party Value
Private Party Value is the fair price you can expect when selling your car to an individual, not to a dealer.
Fair Purchase Price
Fair Purchase Price shows what others in your area are actually paying for this vehicle.
Style
Trade-In Value
Private Party Value
Fair Purchase Price
Work Truck Pickup 2D 6 1/2 ft
$2,450
$3,475
$4,050
Work Truck Pickup 2D 8 ft
$2,750
$3,800
$4,425
Pickup 2D 6 1/2 ft
$2,850
$4,150
$4,775
SLE Pickup 2D 6 1/2 ft
$3,575
$5,125
$5,800
Pickup 2D 8 ft
$3,725
$5,275
$6,000
SLE Pickup 2D 8 ft
$5,075
$6,600
$7,450
Work Truck Pickup 2D 6 1/2 ft
$2,450
$3,475
$4,050
Work Truck Pickup 2D 8 ft
$2,750
$3,800
$4,425
Pickup 2D 6 1/2 ft
$2,850
$4,150
$4,775
SLE Pickup 2D 6 1/2 ft
$3,575
$5,125
$5,800
Pickup 2D 8 ft
$3,725
$5,275
$6,000
SLE Pickup 2D 8 ft
$5,075
$6,600
$7,450
Values above are based on "Good" condition vehicles. Estimated Trade-In Values range from about $2,450 to $5,075 depending on vehicle style. Estimated Private Party Values range from about $3,475 to $6,600 depending on vehicle style. Values and prices are based on national averages and typical mileage for this model, but they can vary greatly according to mileage, condition, location, and other factors. Valid through 6/6/2026.
Trade-In Value
Trade-In Value is the amount you can expect to receive this week when trading in your vehicle at a dealership.
Private Party Value
Private Party Value is the fair price you can expect when selling your car to an individual, not to a dealer.
Fair Purchase Price
Fair Purchase Price shows what others in your area are actually paying for this vehicle.
Style
Trade-In Value
Private Party Value
Fair Purchase Price
SLT Pickup 4D 5 3/4 ft
$4,400
$5,425
$6,225
SLE Pickup 4D 5 3/4 ft
$4,750
$6,100
$6,975
SLT Pickup 4D 5 3/4 ft
$4,400
$5,425
$6,225
SLE Pickup 4D 5 3/4 ft
$4,750
$6,100
$6,975
Values above are based on "Good" condition vehicles. Estimated Trade-In Values range from about $4,400 to $4,750 depending on vehicle style. Estimated Private Party Values range from about $5,425 to $6,100 depending on vehicle style. Values and prices are based on national averages and typical mileage for this model, but they can vary greatly according to mileage, condition, location, and other factors. Valid through 6/6/2026.
Trade-In Value
Trade-In Value is the amount you can expect to receive this week when trading in your vehicle at a dealership.
Private Party Value
Private Party Value is the fair price you can expect when selling your car to an individual, not to a dealer.
Fair Purchase Price
Fair Purchase Price shows what others in your area are actually paying for this vehicle.
See Full Specs for All 2004 GMC Sierra 1500 Styles
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Specifications

Dimensions, Weights & Capacities

Curb Weight
4563 lbs.
Fuel Capacity
26.0 gallons
Front Head Room
41.0 inches
Front Leg Room
41.3 inches
Max Seating Capacity
6
Minimum Ground Clearance
8.1 inches
Overall Length
230.2 inches
Front Shoulder Room
65.2 inches
Towing Capacity, Maximum
8800 lbs.
Turning Diameter
46.6 feet
Wheel Base
143.5 inches
Truck Bed Volume
57 cu.ft.
Bed Length
6.50 feet
Gross Vehicle Weight Rating (GVWR)
6400 lbs.
Payload Capacity
1637 lbs.
Width with mirrors
78.5 inches

Exterior

Alloy Wheels
Available
Moon Roof/Sun Roof
Available
Number of Doors
4 doors
Roof Rails
Available

Fuel Economy

City
13 mpg
Highway
17 mpg
Combined
15 mpg

Mechanical

Drivetrain
4WD
Transmission Type
Automatic
Recommended Fuel
Regular

Performance

Horsepower
295 @ 5200 RPM
Torque
330 @ 4000 rpm
Engine
V8, 5.3 Liter

Warranty

Basic
3 years / 36000 miles
Powertrain
3 years / 36000 miles
Corrosion
6 years / 100000 miles

Entertainment

  • DVD Entertainment System
  • MP3 Player
  • CD Player

Interior

  • Power Windows
  • Tilt Steering Wheel

Seating

  • Leather Seats
  • Dual Power Front Seats
  • Power Driver's Seat

Technology

  • Cruise Control
  • Hands Free Phone
  • Navigation System

2004 GMC Sierra 1500 Safety

Safety Features & Technology

  • Child Door Locks: Not available
  • Child Seat Anchors
  • Driver Airbag
  • Passenger Airbag
  • Emergency & Security Services
  • Rear Parking Sensors
Not Available

Crash Test Rating

Provided by the National Highway Traffic Safety Administration
Driver Front
4.0
Passenger Front
3.0
Rollover Rating
4.0

2004 GMC Sierra 1500 Rankings

Rank
Vehicles
HP
#1
2025 GMC Sierra EV
645
#2
2025 GMC HUMMER EV Pickup
570
#3
2025 Rivian R1T
533
#4
2025 Ford F250 Super Duty Crew Cab
500
#114
2004 GMC Sierra 1500 Extended Cab
295

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FAQs

Is 2004 a good year for a GMC Sierra 1500 Extended Cab?

Owners of the vehicle give it 4.6 out of 5 stars. To find out if the 2004 Sierra 1500 Extended Cab is the right car for you, check out the pros and cons, trims, specs and options at Kelley Blue Book.

Is the GMC Sierra 1500 Extended Cab 2004 a good Pickup?

Owners of the vehicle give it 4.6 out of 5 stars. To find out if the 2004 Sierra 1500 Extended Cab is the right car for you, check out the pros and cons, trims, specs and options at Kelley Blue Book.

What is the MPG for a 2004 GMC Sierra 1500 Extended Cab?

The 2004 GMC Sierra 1500 Extended Cab gets 13 mpg in the city and 17 mpg on the highway.

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