Service & Parts Specials
Service & Parts Specials
Visit our GMC Certified Service experts for vehicle maintenance and repair. Take advantage of our current service offers. Check back regularly for GMC service coupons. Save on oil changes, brake repair, batteries and more.
Tire Price Match Guarantee
Provide us with a better eligible* price at the time of purchase and we'll match it. Find a better price within 30 days of the purchase, and we'll refund the difference.
Eligible Tire Brands: BFGoodrich, Bridgestone, Continental, Dunlop, Firestone, General, Goodyear, Hankook, Kelly, Michelin, Pirelli, and Uniroyal.
Coupon Code: 201. *Ad, written estimate, or Internet quote for identical tire(s) from a competing tire retailer/installer located within 100 miles of the dealer required during guarantee period for price match. Tire match price must be determined prior to applying a tire manufacturer rebate, if any. At Participating Dealers Only. Offer ends 12/31/2026.
Brake Pad Rebate
Up to a $60 rebate* on the purchase and installation of select front and rear brake pads
Eligible brands are GM Genuine Parts ($30 rebate per brake pad set), ACDelco Gold ($20 rebate per brake pad set), or ACDelco Silver ($15 rebate per brake pad set).
Coupon Code: 303. *Limit two sets of brake pad rebates per VIN (one per axle). Purchase and installation must be at a participating U.S. GM Dealer. Rebate will be issued as a Visa® Gift Card. See mycertifiedservicerebates.com for details and rebate form, which must be submitted by 3/31/2026. Offer ends 2/28/2026.
Brake Rotor Rebate
Up to a $60 rebate* on the purchase and installation of four select brake rotors
Eligible brands are GM Genuine Parts ($30 rebate per brake rotor set), ACDelco Gold ($20 rebate per brake rotor set), or ACDelco Silver ($15 rebate per brake rotor set).
Coupon Code: 318. *Limit two sets of brake rotor rebates per VIN (one per axle). Purchase and installation must be at a participating U.S. GM Dealer. Rebate will be issued as a Visa® Gift Card. See mycertifiedservicerebates.com for details and rebate form, which must be submitted by 3/31/2026. Offer ends 2/28/2026.
Wiper Blade Rebate
Up to a $30 rebate* on the purchase of three select ACDelco Wiper Blades
Eligible brands are ACDelco Original Equipment ($10 rebate per wiper blade), ACDelco Gold ($7.50 rebate per wiper blade), or ACDelco Silver ($5 rebate per wiper blade).
Coupon Code: 308. *Limit three rebates per VIN. Purchase must be at a participating U.S. GM Dealer. Rebate will be issued as a Visa® Gift Card. See mycertifiedservicerebates.com for details and rebate form, which must be submitted by 3/31/2026. Offer ends 2/28/2026. Installation not required for wiper rebate.
Battery Rebate
Up to a $30 rebate* on the purchase and installation of one select ACDelco Battery
Eligible brands are ACDelco Gold ($30 rebate) or ACDelco Silver ($15 rebate).
Coupon Code: 309. *Limit one rebate per VIN. Purchase and installation must be at a participating U.S. GM Dealer. Rebate will be issued as a Visa® Gift Card. See mycertifiedservicerebates.com for details and rebate form, which must be submitted by 3/31/2026. Offer ends 2/28/2026.
Cabin Air Filter Rebate
Up to a $15 rebate* on the purchase and installation of one select cabin air filter
Eligible brands are ACDelco Original Equipment ($15 rebate) or ACDelco Gold ($10 rebate).
Coupon Code: 314. *Limit one rebate per VIN. Purchase and installation must be at a participating U.S. GM Dealer. Rebate will be issued as a Visa® Gift Card. See mycertifiedservicerebates.com for details and rebate form, which must be submitted by 3/31/2026. Offer ends 2/28/2026.
Engine Air Filter Rebate
Up to a $15 rebate* on the purchase and installation of one select engine air filter
Eligible brands are ACDelco Original Equipment ($15 rebate) or ACDelco Gold ($10 rebate).
Coupon Code: 315. *Limit one rebate per VIN. Purchase and installation must be at a participating U.S. GM Dealer. Rebate will be issued as a Visa® Gift Card. See mycertifiedservicerebates.com for details and rebate form, which must be submitted by 3/31/2026. Offer ends 2/28/2026.
6-Quart ACDelco GM OE dexos®1 Full Synthetic Oil Change and Tire Rotation on most vehicles*
$94.99
Coupon Code: 202. *Tire balancing, tax, and more than 6 quarts of oil extra. Excludes diesel engines and Corvettes. See owner's manual for specific oil grades recommended by vehicle model. Offer ends 3/22/2026
8-Quart ACDelco GM OE dexos®1 Full Synthetic Oil Change and Tire Rotation on most vehicles*
$109.99
Coupon Code: 212. *Tire balancing, tax, and more than 8 quarts of oil extra. 8-quart dexos®R oil change may be required on 2021-2024 6.2L engines, please check with your dealership. Excludes diesel engines and Corvettes. See owner's manual for specific oil grades recommended by vehicle model. Offer ends 3/22/2026
Most ACDelco Gold Front Brake Pads Installed*
24 Months/Unlimited Mile Warranty**
$199.95
Coupon Code: 203. *Installation and rotor inspection included. Turning or replacing rotors, all other services, and tax extra. Excludes enhanced-performance brake pads and some vehicles. **Please see your Dealer to learn more about the warranty part details and qualifications. Offer ends 3/22/2026
ACDelco Silver Front Brake Rotors installed on most cars & small SUVs*
12 Months/Unlimited Mile Warranty**
$209.95
Coupon Code: 214. *Tax extra. Excludes coated rotors, enhanced-performance rotors, medium-duty trucks, and other select vehicles. **Please see your Dealer to learn more about the warranty part details and qualifications. Offer ends 3/22/2026
ACDelco Silver Front Brake Rotors installed on most trucks and full-size SUVs*
12 Months/Unlimited Mile Warranty**
$249.95
Coupon Code: 215. *Tax extra. Excludes coated rotors, enhanced-performance rotors, medium-duty trucks, and other select vehicles. **Please see your Dealer to learn more about the warranty part details and qualifications. Offer ends 3/22/2026
Most ACDelco Gold 30-Mo Batteries Installed*
30-month free-replacement limited warranty**
$219.95
Coupon Code: 207. *Tax extra. Installation extra on some vehicles. **Please see your Dealer to learn more about exclusions and the warranty part details and qualifications. Offer ends 3/22/2026
Most ACDelco Gold Cabin Air Filters Installed*
$79.99
Coupon Code: 261. *Tax extra. Installation extra on some vehicles. Offer ends 3/22/2026
Tire Rotation and MPVI*
Regular Tire Rotations Can Help Extend The Life Of Your Tires
$39.95
Coupon Code: 277. *See dealer for complete details. Multi-Point Vehicle Inspections (MPVI) vary by participating dealer. Tire balancing, wheel alignment and tax extra. Offer ends 3/22/2026
Most ACDelco Gold 36-Mo AGM Batteries Installed*
36-month free-replacement limited warranty**
$299.95
Coupon Code: 279. *Tax extra. Installation extra on some vehicles. **Please see your Dealer to learn more about exclusions and the warranty part details and qualifications. Offer ends 3/22/2026
Most ACDelco Gold Engine Air Filters Installed*
$79.99
Coupon Code: 283. *Tax extra. Installation extra on some vehicles. Offer ends 3/22/2026
10% OFF Routine Maintenance
10.% OFF
Enjoy special savings on your next routine maintenance. Plus tax, if applicable. Not valid with other offers. Present offer at time of service. Includes parts and materials.
Coupon Code: 4.
Lube, Oil & Filter
Oil Change, Four-Tire Rotation & 27-Point Vehicle Inspection on most vehicles
10.% OFF
Excludes ACDelco dexos®1 oil, diesel engines, Corvettes and select vehicles. More than 6 quarts of oil, balancing tires and tax extra. See dealer for eligible vehicles and details. Not valid with other offers.
Coupon Code: 17. Valid only at O'Neil Buick GMC.
FREE Multi-Point Inspection
FREE
Inspect fluid levels. Check steering, suspension, tires, battery and wiper blades. Check exhaust, undercarriage, lighting systems, belts and hoses. Plus tax, if applicable. Not valid with other offers. Coupon valid at vehicle check-in.
Coupon Code: 153.
PA State Inspection
& Emissions
$60.35
Includes $11 State Sticker Fee.
Coupon Code: 6. See Dealer for Details.
FREE Tire Pressure Check
FREE Tire Pressure Check - Check your Tire Pressure Monthly.
Coupon Code: 42. See O'Neil Buick GMC for details.
Military Discount
10.% OFF
Enjoy special savings on your next routine maintenance. U.S. Military Active Duty, Reserve, Retirees, Veterans and their spouses are eligible. Must present documentation for proof of service. See Dealer for details. Plus tax, if applicable.
Coupon Code: 59. Not valid with other offers.
869 W. Street Road, Warminster, PA 18974