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  • Onyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLT

    $35,664

    $1K
    43,861 mi.
    Est. $657/mo

    ALM Roswell

    4.3
    Roswell, GA (12 mi)
    Check Availability

  • Onyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLT

    $43,599

    36,211 mi.
    Est. $803/mo

    Hardy Family Ford

    4.8
    Dallas, GA (28 mi)
    Check Availability

  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $40,599

    32,203 mi.
    Est. $748/mo

    John Miles Chevrolet Buick GMC

    4.4
    Conyers, GA (23 mi)
    Check Availability

  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $32,858

    57,972 mi.
    Est. $605/mo

    Nalley Honda

    4.8
    Union City, GA (26 mi)
    Check Availability
  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $40,942

    $1.9K
    50,146 mi.
    Est. $754/mo

    Beaver Toyota Cumming

    4.8
    Cumming, GA (22 mi)
    Check Availability
  • Onyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLT

    $34,164

    $1K
    55,492 mi.
    Est. $629/mo

    ALM Roswell

    4.3
    Roswell, GA (12 mi)
    Check Availability
  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $34,164

    $500
    51,415 mi.
    Est. $629/mo

    ALM Kennesaw

    4.3
    Kennesaw, GA (19 mi)
    Check Availability
  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $38,594

    34,924 mi.
    Est. $711/mo

    Day's Chevrolet

    4.8
    Acworth, GA (26 mi)
    Check Availability
  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $37,219

    $1.7K
    56,584 mi.
    Est. $685/mo

    Terry Cullen Southlake Chevrolet

    3.9
    Jonesboro, GA (24 mi)
    Check Availability
  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $37,998

    $1.7K
    42,314 mi.
    Est. $700/mo

    Gwinnett Place Ford

    4.6
    Duluth, GA (12 mi)
    Check Availability
  • Onyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLT

    $39,164

    46,308 mi.
    Est. $721/mo

    ALM Marietta

    4.4
    Marietta, GA (13 mi)
    Check Availability
  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $34,664

    $500
    55,448 mi.
    Est. $638/mo

    ALM Mall of GA

    4.2
    Buford, GA (22 mi)
    Check Availability
  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $35,664

    $1.2K
    40,739 mi.
    Est. $657/mo

    ALM Chevrolet South

    4.1
    Union City, GA (26 mi)
    Check Availability
  • Sterling 2025 GMC Sierra 1500 SLTSterling 2025 GMC Sierra 1500 SLTSterling 2025 GMC Sierra 1500 SLTSterling 2025 GMC Sierra 1500 SLTSterling 2025 GMC Sierra 1500 SLTSterling 2025 GMC Sierra 1500 SLT

    $36,998

    $2K
    50,467 mi.
    Est. $681/mo

    Gwinnett Place Ford

    4.6
    Duluth, GA (12 mi)
    Check Availability
  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $34,664

    $1.5K
    53,698 mi.
    Est. $638/mo

    ALM Gwinnett

    4.3
    Duluth, GA (11 mi)
    Check Availability
  • Onyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLT

    $34,164

    $500
    52,109 mi.
    Est. $629/mo

    ALM Mall of GA

    4.2
    Buford, GA (22 mi)
    Check Availability
  • Onyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLT

    $39,164

    43,236 mi.
    Est. $721/mo

    ALM Marietta

    4.4
    Marietta, GA (13 mi)
    Check Availability
  • Onyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLT

    $35,664

    $1K
    43,861 mi.
    Est. $657/mo

    ALM Roswell

    4.3
    Roswell, GA (12 mi)
    Check Availability
  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $35,164

    $1.5K
    46,510 mi.
    Est. $647/mo

    ALM Roswell

    4.3
    Roswell, GA (12 mi)
    Check Availability
  • Onyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLT

    $44,937

    50,268 mi.
    Est. $827/mo

    Beaver Toyota Cumming

    4.8
    Cumming, GA (22 mi)
    Check Availability
  • Titanium Rush Metallic 2025 GMC Sierra 1500 SLTTitanium Rush Metallic 2025 GMC Sierra 1500 SLTTitanium Rush Metallic 2025 GMC Sierra 1500 SLTTitanium Rush Metallic 2025 GMC Sierra 1500 SLTTitanium Rush Metallic 2025 GMC Sierra 1500 SLTTitanium Rush Metallic 2025 GMC Sierra 1500 SLT

    $35,164

    $1.5K
    44,081 mi.
    Est. $647/mo

    ALM Gwinnett

    4.3
    Duluth, GA (11 mi)
    Check Availability
  • Onyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLT

    $39,664

    31,876 mi.
    Est. $730/mo

    ALM Kennesaw

    4.3
    Kennesaw, GA (19 mi)
    Check Availability
  • Sterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLT

    $44,942

    $495
    47,436 mi.
    Est. $828/mo

    Beaver Toyota Cumming

    4.8
    Cumming, GA (22 mi)
    Check Availability
  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $37,549

    $1.2K
    46,282 mi.
    Est. $691/mo

    Jim Ellis Buick GMC

    4.6
    Atlanta, GA (1 mi)
    Check Availability
  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $33,164

    $500
    62,741 mi.
    Est. $611/mo

    ALM Kennesaw

    4.3
    Kennesaw, GA (19 mi)
    Check Availability
  • Sterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLT

    $35,164

    $500
    48,410 mi.
    Est. $647/mo

    ALM Kennesaw

    4.3
    Kennesaw, GA (19 mi)
    Check Availability
  • Black 2025 GMC Sierra 1500 SLTBlack 2025 GMC Sierra 1500 SLTBlack 2025 GMC Sierra 1500 SLTBlack 2025 GMC Sierra 1500 SLTBlack 2025 GMC Sierra 1500 SLTBlack 2025 GMC Sierra 1500 SLT

    $50,998

    19,915 mi.
    Est. $939/mo

    CarMax Columbus

    4.7
    $149 delivery to Norcross, GA (8 mi)
    Check Availability
  • Gray 2025 GMC Sierra 1500 SLTGray 2025 GMC Sierra 1500 SLTGray 2025 GMC Sierra 1500 SLTGray 2025 GMC Sierra 1500 SLTGray 2025 GMC Sierra 1500 SLTGray 2025 GMC Sierra 1500 SLT

    $36,998

    42,802 mi.
    Est. $681/mo

    CarMax Jacksonville NC

    4.2
    $199 delivery to Norcross, GA (8 mi)
    Check Availability

GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 SLT 3 Good deals

About the 2025 GMC Sierra 1500 SLT

Basics

SLT shown.

Seating
5
Door count
4
Drivetrain
Rear Wheel Drive
Combined MPG
17
Transmission
10-Speed A/T
Engine
305.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Diesel Fuel)
Side view of the 2025 GMC Sierra 1500 SLT
FAQs

How much does the 2025 GMC Sierra 1500 SLT cost?

The 2025 GMC Sierra 1500 SLT price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2025 Sierra 1500 SLT is $40,847, with pricing starting at $29,932.

What is the MPG of the 2025 GMC Sierra 1500 SLT?

The 2025 GMC Sierra 1500 SLT offers up to 16 MPG in city driving and 20 MPG on the highway for a combined rating of 17 MPG.

These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle options, driving conditions, driving habits, vehicle maintenance, and other factors.

What are some similar vehicles and competitors of the 2025 GMC Sierra 1500 SLT?

The 2025 GMC Sierra 1500 SLT compares to and/or competes against the following vehicles:


Is the 2025 GMC Sierra 1500 SLT reliable?

The 2025 GMC Sierra 1500 has an average reliability rating of 4.6 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2025 Sierra 1500 owners.

Ratings (5 reviews)

100% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.8
Interior
4.8
Performance
4.6
Value
4.4
Exterior
4.6
Reliability
4.6
Trims

SLT (3 styles)

Style
4WD Crew Cab 157" SLT 2WD Crew Cab 147" SLT 4WD Crew Cab 147" SLT
Inventory price
Starting at $58,700 Starting at $54,900 Starting at $58,000
Combined MPG
16 17 16
Engine
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 305.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Diesel Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)

2025 GMC Sierra 1500 SLT by city