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  • Titanium 2025 GMC Sierra 1500 SLTTitanium 2025 GMC Sierra 1500 SLTTitanium 2025 GMC Sierra 1500 SLTTitanium 2025 GMC Sierra 1500 SLTTitanium 2025 GMC Sierra 1500 SLTTitanium 2025 GMC Sierra 1500 SLT

    $37,469

    48,666 mi.
    Est. $704/mo

    Mark Christopher Chevrolet Buick GMC Cadillac

    4.6
    Ontario, CA (15 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

    $36,485

    46,857 mi.
    Est. $686/mo

    STG Auto Group of Montclair

    3.0
    Montclair, CA (10 mi)
    Check Availability

  • White 2025 GMC Sierra 1500 SLT

    $41,872

    31,389 mi.
    Est. $787/mo

    STG Auto Group of Montclair

    3.0
    Montclair, CA (10 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

    $35,609

    58,545 mi.
    Est. $669/mo

    Mark Christopher Chevrolet Buick GMC Cadillac

    4.6
    Ontario, CA (15 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

    $33,713

    53,863 mi.
    Est. $634/mo

    AutoNation Toyota Cerritos

    4.8
    Cerritos, CA (18 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

    $38,622

    $1.4K
    36,447 mi.
    Est. $726/mo

    Pacific West Imports

    East Los Angeles, CA (18 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

    $39,981

    44,943 mi.
    Est. $752/mo

    Orange Coast Chrysler Jeep Dodge Ram Fiat

    3.9
    Costa Mesa, CA (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

    $36,142

    49,577 mi.
    Est. $679/mo

    Mark Christopher Chevrolet Buick GMC Cadillac

    4.6
    Ontario, CA (15 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

    $41,079

    $1.9K
    35,867 mi.
    Est. $772/mo

    STG Auto Group of Montclair

    3.0
    Montclair, CA (10 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

    $37,133

    $243
    66,601 mi.
    Est. $698/mo

    Glendale Chevrolet

    4.5
    Glendale, CA (25 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

    $46,495

    53,846 mi.
    Est. $874/mo

    Surf City Nissan

    4.7
    Huntington Beach, CA (23 mi)
    Check Availability
  • Titanium 2025 GMC Sierra 1500 SLTTitanium 2025 GMC Sierra 1500 SLTTitanium 2025 GMC Sierra 1500 SLTTitanium 2025 GMC Sierra 1500 SLTTitanium 2025 GMC Sierra 1500 SLTTitanium 2025 GMC Sierra 1500 SLT

    $37,469

    48,666 mi.
    Est. $704/mo

    Mark Christopher Chevrolet Buick GMC Cadillac

    4.6
    Ontario, CA (15 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

    $35,621

    53,154 mi.
    Est. $670/mo

    CardinaleWay Volkswagen Corona

    Corona, CA (17 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

    $34,949

    58,202 mi.
    Est. $657/mo

    Glendale Chevrolet

    4.5
    Glendale, CA (25 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

    $33,713

    53,863 mi.
    Est. $634/mo

    AutoNation Toyota Cerritos

    4.8
    Cerritos, CA (18 mi)
    Check Availability

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

    $46,795

    50,761 mi.
    Est. $880/mo

    Corona Nissan

    2.5
    Corona, CA (17 mi)
    Check Availability
  • Sterling 2025 GMC Sierra 1500 SLTSterling 2025 GMC Sierra 1500 SLTSterling 2025 GMC Sierra 1500 SLT

    $46,395

    52,322 mi.
    Est. $872/mo

    Corona Nissan

    2.5
    Corona, CA (17 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

    $42,792

    46,706 mi.
    Est. $804/mo

    Nissan of Downtown L.A.

    4.7
    Los Angeles, CA (24 mi)
    Check Availability
  • Onyx Black 2025 GMC Sierra 1500 SLT

    $40,080

    57,049 mi.
    Est. $753/mo

    Mark Christopher Chevrolet Buick GMC Cadillac

    4.6
    Ontario, CA (15 mi)
    Check Availability
  • Onyx Black 2025 GMC Sierra 1500 SLT

    $40,753

    49,627 mi.
    Est. $766/mo

    Mark Christopher Chevrolet Buick GMC Cadillac

    4.6
    Ontario, CA (15 mi)
    Check Availability
  • Sterling Metallic 2025 GMC Sierra 1500 SLT

    $42,743

    42,671 mi.
    Est. $803/mo

    Chevrolet of Carson

    3.6
    Carson, CA (26 mi)
    Check Availability
  • White 2025 GMC Sierra 1500 SLTWhite 2025 GMC Sierra 1500 SLTWhite 2025 GMC Sierra 1500 SLTWhite 2025 GMC Sierra 1500 SLTWhite 2025 GMC Sierra 1500 SLTWhite 2025 GMC Sierra 1500 SLT

    $38,998

    33,828 mi.
    Est. $733/mo

    CarMax Henderson

    4.3
    $149 delivery to Duarte, CA (11 mi)
    Check Availability
  • White 2025 GMC Sierra 1500 SLTWhite 2025 GMC Sierra 1500 SLTWhite 2025 GMC Sierra 1500 SLTWhite 2025 GMC Sierra 1500 SLTWhite 2025 GMC Sierra 1500 SLTWhite 2025 GMC Sierra 1500 SLT

    $36,998

    49,810 mi.
    Est. $695/mo

    CarMax Fairfield

    4.4
    $149 delivery to Duarte, CA (11 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

    $36,899

    $100
    71,781 mi.
    Est. $694/mo

    Mercedes-Benz of Valencia

    4.2
    Santa Clarita, CA (49 mi)
    Check Availability
  • White 2025 GMC Sierra 1500 SLTWhite 2025 GMC Sierra 1500 SLTWhite 2025 GMC Sierra 1500 SLTWhite 2025 GMC Sierra 1500 SLTWhite 2025 GMC Sierra 1500 SLTWhite 2025 GMC Sierra 1500 SLT

    $36,612

    $500
    44,833 mi.
    Est. $688/mo

    Rydell Chrysler Dodge Jeep Ram

    San Fernando, CA (38 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

    $48,783

    37,424 mi.
    Est. $917/mo

    Kia of Valencia

    Valencia, CA (49 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

    $36,597

    55,261 mi.
    Est. $688/mo

    Trust Antelope Valley Subaru

    4.9
    Lancaster, CA (48 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

    $39,999

    $600
    47,895 mi.
    Est. $752/mo

    Diamond Chevrolet of San Bernardino

    3.9
    San Bernardino, CA (33 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

    $36,899

    $500
    64,162 mi.
    Est. $694/mo

    Diamond Chevrolet of San Bernardino

    3.9
    San Bernardino, CA (33 mi)
    Check Availability
  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $36,888

    $400
    62,306 mi.
    Est. $693/mo

    Victorville Chevrolet

    Victorville, CA (45 mi)
  • 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

    Not Priced

    26,094 mi.

    Nissan of San Bernardino

    4.5
    San Bernardino, CA (33 mi)
    Check Availability
  • $44,648

    38,305 mi.
    Est. $839/mo

    Mazda Of Valencia

    Santa Clarita, CA (49 mi)
    Check Availability

GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 SLT 6 Great 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 $41,105, with pricing starting at $30,188.

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