Service Department
Nobody Knows Your GMC Like We Do
From the wipers to the wheels, at Mario D'Addario Buick GMC of SHELTON, the Certified Service experts know the exact needs of your Mario D'Addario Buick GMC car, truck, or SUV. Our GMC Certified Service experts are trained to know every inch of your vehicle and can help you keep it running with the performance you've come to expect from GMC.
Schedule Service
Schedule service and maintenance with our Certified Service experts today.
SCHEDULE SERVICEMulti-Point Vehicle Inspection*
Our GMC Certified Service technicians at Mario D'Addario Buick GMC will complete a comprehensive look into your vehicle's tires, wiper blades, fluid levels, brakes, battery and more to keep your vehicle running exceptionally.
LEARN MOREGM Genuine Parts & ACDelco Parts
At Mario D'Addario Buick GMC we're your one-stop shop for auto parts. Let us find the right part for your vehicle.
ORDER PARTSService Specials
ALIGNMENT & NITROGEN COMBO
Save $35.00
Offer Expires 1/31/2026
Includes: 4-wheel alignment & Nitrogen Tire fill Combo Special! - Not all nitrogen tire fill services are equal! High purity of over 95% is essential to receive maximum benefit. We guarantee high purity nitrogen along with free refills (ie: tire repair) for the life of the tires!
4-WHEEL ALIGNMENT SPECIAL
Save $20
Offer Expires 1/31/2026
Includes: -Professional 4-wheel alignment service: we will inspect, measure & adjust as needed. Includes camber, caster & toe-in corrections to factory specs.
329 BRIDGEPORT AVE, SHELTON, CT 06484
FEATURED SERVICES
Multi-Point Vehicle Inspection*
Help keep your vehicle performing at its best with a thorough assessment of vehicle health indicators.
Oil Change
Regular oil changes are vital to your vehicle's function.
Tires
Roll down the road with confidence.
Brakes
For reliable stopping power, brake components must be monitored regularly.
Batteries
Power your next adventure with our latest batteries.
Additional Services
Find more services for your vehicle.
SCHEDULE CERTIFIED SERVICE NEAR YOU
Set up a time for our expert technicians to assess your vehicle.
Schedule Service