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Used 2021 GMC Sierra 1500 for Sale in Ontario, CA

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    Sponsored by Tustin Buick GMC
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    Used 2021 GMC Sierra 1500 SLT w/ SLT Premium Package
    28,967
    See estimated payment
    Great Price
    Dealer Fees Included
    Tustin Buick GMC
    (714) 656-2041
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    245View Vehicles

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    Used 2021 GMC Sierra 1500 Elevation w/ Preferred Package
    Used

    2021 GMC Sierra 1500

    • Elevation
    • 25K mi
    38,148
    Great Price
    Dealer Fees Included
    Sponsored by Garden Grove KIA
    • 25.31 mi. away
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    360°
    Used 2021 GMC Sierra 1500 Elevation w/ Preferred Package
    Used

    2021 GMC Sierra 1500

    • Elevation
    • 25K mi
    38,148
    Great Price
    Dealer Fees Included
    Garden Grove KIA
    • 25.31 mi. away
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    Price Drop
    Used 2021 GMC Sierra 1500 Elevation
    Used

    2021 GMC Sierra 1500

    • Elevation
    • 107K mi
    28,578
    Good Price
    Dealer Fees Included
    No Accidents
    Anaheim Hyundai
    • 20.79 mi. away
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    Based on 4.5% APR for mos.
    Used 2021 GMC Sierra 1500 Elevation w/ X31 Off-Road Package
    Used

    2021 GMC Sierra 1500

    • Elevation
    • 62K mi
    35,158
    Great Price
    Dealer Fees Included
    No Accidents
    Westcoast Auto Sales
    • 4.92 mi. away
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    Used 2021 GMC Sierra 1500 Elevation w/ Preferred Package
    Used

    2021 GMC Sierra 1500

    • Elevation
    • 53K mi
    36,637
    Great Price
    Dealer Fees Included
    No Accidents
    AutoNation INFINITI Tustin
    • 23.34 mi. away
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    New 2026 GMC Sierra 1500 Elevation w/ Elevation Premium Package
    Consider Buying New

    2026 GMC Sierra 1500

    • Elevation
    • 5 mi
    63,685
    Tustin Buick GMC
    • 23.36 mi. away
    Call
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    High Demand
    Used 2021 GMC Sierra 1500 AT4 w/ AT4 Value Package
    Used

    2021 GMC Sierra 1500

    • AT4
    • 72K mi
    35,667
    Great Price
    Dealer Fees Included
    No Accidents
    Buena Park Honda
    • 24.54 mi. away
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    Used 2021 GMC Sierra 1500 Elevation w/ Preferred Package
    Used

    2021 GMC Sierra 1500

    • Elevation
    • 85K mi
    30,649
    Great Price
    Dealer Fees Included
    No Accidents
    Hardin Buick GMC
    • 20.85 mi. away
    • Online Paperwork
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    Newly Listed
    No Image Available
    Used

    2021 GMC Sierra 1500

    • SLT
    • 94K mi
    30,253
    Dealer Fees Included
    Tustin Lexus
    • 23.52 mi. away
    Call
    High Demand
    Used 2021 GMC Sierra 1500 Elevation w/ LPO, Elevation Black Package
    Used

    2021 GMC Sierra 1500

    • Elevation
    • 41K mi
    35,897
    Great Price
    Dealer Fees Included
    Tustin Buick GMC
    • 23.36 mi. away
    Call
    No Image Available
    Used

    2021 GMC Sierra 1500

    • AT4
    • 61K mi
    41,314
    No Accidents
    Diamond Chevrolet of San Bernardino
    • 19.33 mi. away
    Call
    Used 2021 GMC Sierra 1500 SLT w/ SLT Premium Package
    Used

    2021 GMC Sierra 1500

    • SLT
    • 106K mi
    28,967
    Great Price
    Dealer Fees Included
    No Accidents
    Tustin Buick GMC
    • 23.36 mi. away
    Call
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    Used 2021 GMC Sierra 1500 SLT w/ SLT Premium Package
    Used

    2021 GMC Sierra 1500

    • SLT
    • 124K mi
    25,450
    Great Price
    Dealer Fees Included
    No Accidents
    Plug-In Auto Supercenter
    • 18.24 mi. away
    Call
    Used 2021 GMC Sierra 1500 Denali
    Used

    2021 GMC Sierra 1500

    • Denali
    • 86K mi Mileage Value
    33,622
    Great Price
    Dealer Fees Included
    No Accidents
    Dealer
    • 11.45 mi. away
    Call
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