1. Available on Sierra EV Elevation Base Standard Range, Base Extended Range and Premium Extended Range, AT4 Base Extended Range and Premium Extended Range and Denali Base Standard Range and Base Extended Range models. If this vehicle was not used as a courtesy transportation vehicle by your dealer, then this vehicle may qualify for the federal new clean vehicle tax credit under Section 30D of the Inflation Reduction Act (IRA). IRS-qualified dealers eligible to offer the tax credit and participating dealers may apply the tax credit at the point of sale toward the vehicle price. See dealer for details and to confirm vehicle tax credit qualification. Your personal eligibility to claim this tax credit depends on your individual circumstances, including whether your adjusted gross income for the current or preceding taxable year exceeds the income thresholds contained in Section 30D. Buyers are advised to obtain a copy of the IRS's confirmation that a "time-of-sale" report was submitted successfully by the dealer. You should consult your tax, accounting or legal advisor to confirm your eligibility or if you have questions regarding this tax credit. This information does not constitute tax, accounting or legal advice. Credit availability and amount subject to federal law and regulations and manufacturing constraints. For information about the IRA’s federal tax credit, please visit https://www.fueleconomy.gov/feg/taxevb.shtml. Must take delivery by 9/30/2025.

Stock #HD250283 ($100,690 MSRP, $0 SEC DEP, FIRST PAYMENT DUE AT SIGNING, $15,576 TOTAL OF PAYMENTS, LEV $84,025, 10K/YR, .25 OVER MILES) Available on select new in-stock vehicles, order and trades excluded. First Payment, tax, title, registration, and doc fees due at signing. Includes GM Employee Pricing EV Allowance and club store membership discount. Not stackable with website advertised 2K trade offer. See dealer for details.

($28,040 MSRP, $0 SEC DEP, $3,000 DUE AT SIGNING, $4,536 TOTAL OF PAYMENTS, LEV $19,908, 10K/YR, .25 OVER MILES) Available on select new in-stock vehicles, order and trades excluded. Payments exclude tax, title, registration, and doc fees. All offers to lease include GM employee discount, lease loyalty, club membership, and all applicable stackable GM rebates. See dealer for details.

($55,190 MSRP, $0 SEC DEP, TAX DUE AT SIGNING, $5,736 TOTAL OF PAYMENTS, $39,736 LEV, 10K/YR, .25 OVER MILES) Available on select new in-stock vehicles, order and trades excluded. Payments exclude tax, title, registration, and doc fees. All offers to lease include GM employee discount, Buick GMC lease loyalty and all applicable stackable GM rebates. See dealer for details.

ELIGIBLE EMPLOYEES CAN USE THIS ALLOWANCE TOWARDS THE PURCHASE OR LEASE OF A NEW AND UNUSED VEHICLE. CUSTOMERS MUST PROVIDE DRIVER'S LICENSE AND AUTHORIZATION NUMBER TO DEALER PRIOR TO DELIVERY OF THE VEHICLE. -EACH ALLOWANCE (AUTHORIZATION NUMBER) CAN ONLY BE USED ONCE. -ONLY ONE ALLOWANCE (AUTHORIZATION NUMBER) MAY BE USED FOR REDEMPTION PER PURCHASE/LEASE PER ELIGIBLE CUSTOMER. -THE ACTIVE UAW-GM HOURLY EMPLOYEE VEHICLE ALLOWANCE IS AVAILABLE TO ACTIVE UAW-GM HOURLY EMPLOYEES AND MAY BE TRANSFERRED TO A MEMBER OF THEIR HOUSEHOLD. THIS ALLOWANCE MAY ONLY BE TRANSFERRED WITHIN THE HOUSEHOLD OF THE UAW-GM ACTIVE EMPLOYEE. A HOUSEHOLD MEMBER IS DEFINED AS SOMEONE WHO SHARES THE SAME HOME ADDRESS AS THE UAW-GM ACTIVE EMPLOYEE, AND THIS MUST BE ESTABLISHED BY A DRIVER'S LICENSE OR STATE IDENTIFICATION. -THE UNIT MUST BE TITLED IN THE PERSONAL NAME FOR PERSONAL USE OF THE ELIGIBLE UAW GM EMPLOYEE. VEHICLES MAY BE TITLED WITH A CO-BUYER PROVIDED THE PARTICIPANT, WHO IS NAMED AS THE PURCHASER ON THE CUSTOMER DEALER AGREEMENT, IS LISTED AS A CO-BUYER ON THE: · TITLE · REGISTRATION · FINANCING DOCUMENTS · INSURANCE DOCUMENTS

1. To qualify for the GM Limited Time Special, you must: (1) be a current Costco Gold Star, Business, or Executive level Member by June 2, 2025; (2) register with Costco Auto Program online or through its call center by August 4, 2025, to receive a certificate with your unique promotion code; (3) present your certificate and unique promotion code to any Chevrolet, GMC or Cadillac dealer at time of visit; (4) take delivery between June 3, 2025, and August 4, 2025, of a new 2024, 2025, 2026 GMC Sierra EV, Hummer EV SUV, or Hummer EV Pickup to receive a $1,000 Gold Star/Business Membership Costco member-only incentive or $1,250 Executive level Membership Costco member-only incentive. Incentive will be applied at time of eligible purchase or lease and is compatible with current eligible manufacturer incentives for which you qualify. Incentive is subject to change due to vehicle inventory availability. Visit CostcoAuto.com/GM for full details. Costco and its affiliates do not sell automobiles or negotiate individual transactions. 2. To qualify for the GM Rewards Limited Time Special, and receive 10,000 GM Rewards points for Costco Gold Star, Business Membership or 12,000 GM Rewards points for Executive Membership on eligible purchases you must: (1) be a Costco Gold Star, Business, or Executive level Member by June 2, 2025; (2) be an individual consumer 18 years or older residing in the fifty (50) United States or Washington, D.C.; (3) be a GM Rewards Member or enroll in the GM Rewards Program within 30 days of the purchase of a qualifying vehicle at experience.gm.com/createaccount; (4) register with Costco Auto Program online or through its call center by August 4, 2025, to receive a certificate with your unique promotion code; (5) present your certificate and unique promotion code to any GMC dealer at time of visit; (6) take delivery between June 3, 2025, and August 4, 2025, of a new 2024, 2025, 2026 GMC Sierra EV, Hummer EV SUV, or Hummer EV Pickup through the GM Limited Time Special. GM Rewards Members also earn 1 point for every $5 spent on a new GM lease or purchase, based on the vehicle MSRP and excluding taxes and fees. Points will be awarded within 45 days of your qualifying vehicle purchase. GM Limited Time Special Incentive is subject to change due to vehicle inventory availability. Visit CostcoAuto.com/GM for full details. Costco and its affiliates do not sell automobiles or negotiate individual transactions.