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.

*Eligible brands ACDelco Gold ($20 rebate per battery) and ACDelco Original Equipment or GM Genuine Parts ($15 rebate per cabin air filter, $15 rebate per engine air filter, $80 rebate per brake pad set or brake rotor set and $30 rebate for three wiper blades). $160 rebate derives from collective rebate on all eligible parts. Limit one rebate per VIN for battery and filters. Limit two rebates for brake pad or rotor sets. Limit three rebates per VIN for wipers. Rebate will be issued as a Visa® Gift Card. See mycertifiedservicerebates.com for details and rebate form, which must be submitted by 9/30/2025. Offer ends 8/31/2025. Installation not required for wiper rebate.

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.

1. Length of contract limited. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 8/4/25. 2. AVAILABLE ON THE TURBOMAXTM ENGINE. 3. Tax, title, license, and dealer fees extra. Dealer sets final price. Not available with lease and some other offers. Take new retail delivery by 8/4/25. 4. AVAILABLE ON THE TURBOMAXTM ENGINE. MUST BE A CURRENT OWNER OF A 2011 MODEL YEAR OR NEWER BUICK OR GMC VEHICLE OR A CURRENT LESSEE OF A 2020 MODEL YEAR OR NEWER BUICK OR GMC VEHICLE THROUGH GM FINANCIAL FOR AT LEAST 30 DAYS PRIOR TO NEW VEHICLE SALE. Not available with lease and some other offers. Take new retail delivery by 8/4/25.

1. Length of contract limited. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 8/4/25. 2. MUST BE A CURRENT OWNER OF A 2011 MODEL YEAR OR NEWER NON-GM VEHICLE OR A CURRENT LESSEE OF A 2020 MODEL YEAR OR NEWER NON-GM VEHICLE FOR AT LEAST 30 DAYS PRIOR TO NEW VEHICLE SALE. Not available with lease and some other offers. Take new retail delivery by 8/4/25. 3. Deferred monthly payments for 90 days. Excludes residents of PA. Must finance with GM Financial. Some customers may not qualify. Down payment required at signing, if applicable. Finance charges accrue from date of financing. Not available with lease and some other offers. Take new retail delivery by 8/4/25.

1. Available for eligible individual buyers on new qualifying vehicles assembled in the US. Only applies to interest paid in tax years 2025-2028 on new debt contracted after 12/31/2024. Tax deduction subject to change and filing requirements. Income restrictions and other restrictions and limitations may apply. Consult your tax, legal, or accounting professional if you have questions. This information does not constitute tax, accounting, or legal advice. Deduction subject to federal laws and regulations and manufacturing constraints.

PURCHASE WITH APR DISCLAIMER > Example stock: Stock LB242147 | 2024 GMC 1500 | $54,275 MSRP | $12,000 off MSRP | [$4,000 Rebate, and $8,000 Covert Discount] Sale Price $42,275 OR 0% APR for 36 Months for well-qualified buyers when financed through GM Financial. Not available with leases and some other offers. Offer ends 07/31/2025$400/month for 24 months. Your payments may vary. Payments are for a 2025 GMC Sierra 1500 Crew Cab 4WD Elevation w/TurboMax with an MSRP of $56,895. Based on due at signing amount of $6,270 (after all offers). 24 monthly payments total $9,600. Option to purchase at lease end for an amount to be determined at lease signing. Lessor must approve lease. Take new retail delivery by 07-31-2025. Lessee pays for maintenance, repair, excess wear and disposition fee of $495 or less at end of lease. No security deposit required. Payments may be higher in some states. Not available with other offers.

PURCHASE WITH APR DISCLAIMER > Example stock: Stock B251578 | 2025 GMC 2500 | $85,790 MSRP | $8,250 off MSRP | [$2,750 Rebate, and $5,500 Covert Discount | Sale Price $77,540 OR 5.9% APR for 84 Months for well-qualified buyers when financed through GM Financial. Not available with leases and some other offers. Offer ends 07/31/2025. 900/month for 39 months. Your payments may vary. For eligible new and unused models leased through GM Financial. Payments are for a 2025 GMC Sierra 2500HD Crew 4WD SLT with an MSRP of $66,695. Based on due at signing amount of $3,436 (after all offers). 39 monthly payments total $35,100. Option to purchase at lease end for an amount to be determined at lease signing. Lessor must approve lease. Take new retail delivery by 07-31-2025. Lessee pays for maintenance, repair, excess wear and disposition fee of $495 or less at end of lease. No security deposit required. Payments may be higher in some states. Not available with other offers.

PURCHASE WITH APR DISCLAIMER > Example stock: Stock LB242417 | 2024 GMC SIERRA EV DENALI EDITION 1 | $99,495 MSRP | $17,000 off MSRP | [$3,000 Rebate, and $14,000 Covert Discount |Sale Price $82,495 OR 0% APR for 60 Months for well-qualified buyers when financed through GM Financial. Not available with leases and some other offers. Offer ends 07/31/2025 $949/month for 39 months. Your payments may vary. For eligible new and unused models leased through GM Financial. Payments are for a 2025 GMC Sierra EV e4WD Denali with an MSRP of $91,995. Based on due at signing amount of $5,317 (after all offers). 39 monthly payments total $37,011. Option to purchase at lease end for an amount to be determined at lease signing. Lessor must approve lease. Take new retail delivery by 07-31-2025. Lessee pays for maintenance, repair, excess wear and disposition fee of $495 or less at end of lease. No security deposit required. Payments may be higher in some states. Not available with other offers.

$999/month for 36 months. Your payments may vary. For eligible new and unused models leased through GM Financial. Payments are for a 2025 GMC HUMMER EV SUV e4WD 2X with an MSRP of $98,845. Based on due at signing amount of $6,569 (after all offers). 36 monthly payments total $35,964. Option to purchase at lease end for an amount to be determined at lease signing. Lessor must approve lease. Take new retail delivery by 07-31-2025. Lessee pays for maintenance, repair, excess wear and disposition fee of $495 or less at end of lease. No security deposit required. Payments may be higher in some states. Not available with other offers. Select Hummer EV SUV leases with GM Financial benefit from a Clean Vehicle Federal Tax Credit of up to $7,500 though a residual enhancement applied by GM Financial. This is not an individual tax credit and cannot be claimed on your income taxes. Take delivery by 07-31-2025 PURCHASE WITH APR DISCLAIMER > Example stock: Stock BT7000 | 2025 GMC HUMMER EV SUV | $99,195 MSRP | $14,000 off MSRP | [$3,000 Rebate, and $11,000 Covert Discount] Sale Price $85,195 OR 0% APR for 60 Months for well-qualified buyers when financed through GM Financial. Not available with leases and some other offers. Offer ends 07/31/2025

$0 due at signing (after all offers). $0 down payment / $0 first month payment / $0 security deposit (after all offers)*. Tax, title, license, and dealer fees extra. $0 security deposit. Mileage charge of $0.25 /mile over 30,000 miles at participating dealers. Example based on LB251339. $299/month for 36 months. Your payments may vary. For eligible new and unused models leased through GM Financial. Payments are for a 2025 BUICK Encore GX FWD Preferred with an MSRP of $28,320. Based on due at signing amount of $0 (after all offers). 36 monthly payments total $10,764. 35 monthly payments total $10,465. Option to purchase at lease end for an amount to be determined at lease signing. Lessor must approve lease. Take new retail delivery by 07-31-2025. Lessee pays for maintenance, repair, excess wear and disposition fee of $495 or less at end of lease. No security deposit required. Payments may be higher in some states. Not available with other offers.

$1499 due at signing (after all offers). Tax, title, license, and dealer fees extra. $0 security deposit. Mileage charge of $0.25 /mile over 30,000 miles at participating dealers. Example based on B250801. $499/month for 36 months. Your payments may vary. For eligible new and unused models leased through GM Financial. Payments are for a 2025 BUICK Envision AWD Preferred with an MSRP of $39,935. Based on due at signing amount of $1499 (after all offers). 36 monthly payments total $17,964. Option to purchase at lease end for an amount to be determined at lease signing. Lessor must approve lease. Take new retail delivery by 07-31-2025. Lessee pays for maintenance, repair, excess wear and disposition fee of $495 or less at end of lease. No security deposit required. Payments may be higher in some states. Not available with other offers.