GMC vehicles are built for strength, durability, and performance, making them ideal for both work and everyday driving. From powerful Sierra trucks to family-friendly Yukon SUVs, GMC owners expect reliability from their vehicles. That’s why GMC owners across the Washington, D.C., area trust Metro Motor to maintain and repair their trucks and SUVs. Our expert technicians tailor their care to the engineering of GMC vehicles, helping deliver peak performance and long-lasting reliability.
Our technicians have extensive GMC auto repair expertise.
GMC models feature advanced engineering and high-performance technology, requiring expert care. At Metro Motor, our ASE-certified technicians work on GMC trucks and SUVs every day. Whether it’s a Denali model with premium features or a Canyon pickup that works hard, we have the expertise to keep your GMC running smoothly.
We use OEM-level diagnostic tools for accurate assessments and precise repairs, from turbocharged four-cylinders and V8s to four-wheel-drive and all-wheel-drive systems. We use OEM or OEM-equivalent parts and manufacturer-recommended fluids, including dexos-approved oil, for the right fit and long-term durability. GMC shares much of its engineering with other GM brands, so you can also learn more about our GM service.

Image: A Metro Motor technician at our Capitol Hill auto repair shop diagnoses a check engine light on a GMC Yukon.
We provide complete GMC auto repair and maintenance services.
From Terrain and Acadia crossovers to Canyon and Sierra pickups and full-size Yukon SUVs, GMC builds vehicles that commute, haul, and tow. Our ASE-certified technicians use OEM-level diagnostic tools, follow GMC’s factory maintenance schedules, and use OEM and manufacturer-recommended parts and fluids. Our GMC repair and maintenance services include:
- Oil Life Monitor Maintenance – GMC’s Oil Life Monitoring System tells you when your next oil change is due. We change your oil with dexos-approved oil and a new filter, handle the rest of your scheduled maintenance, and reset the monitor so your next reminder is accurate.
- Engine Diagnostics & Repairs – Whether a check-engine light comes on in your Terrain or your Sierra develops a tick on startup, our technicians use OEM-level diagnostic tools to trace the problem to its source and repair it correctly the first time, from misfires and sensor faults to turbocharger, timing chain, coolant leak, and V8 lifter issues on engines with Active or Dynamic Fuel Management.
- Transmission & 4WD Service – From the nine-speed automatics in GMC crossovers to the eight- and 10-speed automatics in Sierra pickups and Yukon SUVs, we diagnose shifting concerns, service transmissions with the correct fluids, and maintain transfer cases and differentials on four-wheel-drive and all-wheel-drive models.
- Towing & Trailering Readiness – Towing puts extra demand on brakes, cooling, and drivetrain components. We inspect and service the systems your Sierra, Canyon, or Yukon relies on when it’s pulling a load, from transmission and cooling system service to brakes, hitch wiring, and trailer brake controller troubleshooting.
- Brake System Services – We inspect and replace pads, rotors, and calipers, flush brake fluid on schedule, and service electronic parking brakes on the models that have them, so your GMC stops confidently, loaded or not.
- Suspension, Steering & Alignment – Potholes, curbs, trails, and heavy loads take a toll. We repair shocks, struts, ball joints, and steering components, including the adaptive and air suspension on the Denali and AT4 models that have them, and align your wheels to factory specifications.
- Electrical, Battery & Climate Control – From battery and alternator testing to wiring faults, lighting, power accessories, and air conditioning and heating repairs, we diagnose and fix GMC electrical and comfort systems accurately.
- Tire Services – We mount, balance, rotate, and replace tires to GMC’s recommended specifications, from everyday all-season tires to the all-terrain and light-truck tires on Sierra and Canyon pickups.
Every visit includes a free Preventative Maintenance Inspection, and most mechanical and electrical repairs are backed by our 3-year/36,000-mile nationwide warranty. Drop off your GMC and we’ll get you where you’re going with a complimentary Lyft ride. Already have a quote from the dealer? Bring it in for a free second opinion.
We also handle complete collision repair and auto body services for GMC vehicles.
Accidents happen, but Metro Motor is here to restore your GMC to its original condition. GMC engineers its trucks and SUVs to protect occupants in a crash, and the current Sierra pairs a high-strength steel frame with aluminum doors, hood, and tailgate, which call for their own repair methods. A proper collision repair has to restore that engineering, not just the appearance. Metro Motor’s I-CAR Gold Class® certified technicians follow GM’s published repair procedures and use OEM and factory-approved components, so your GMC leaves our body shop looking right and protecting you as designed. Our collision repair services include:
- Frame & Structural Repairs – Using computerized measuring and laser alignment, we return your GMC’s frame or unibody structure to factory dimensions and repair steel and aluminum each the way GM specifies, preserving crash protection and, on trucks, towing and hauling capability.
- Factory-Matched Paint & Refinishing – From Summit White to Onyx Black, GMC’s colors demand an exact match. We use spectrophotometer color matching in a climate-controlled booth, then sand, buff, and polish until repaired panels blend seamlessly into the rest of the vehicle.
- ADAS Scanning & Recalibration – GMC Pro Safety features, from Automatic Emergency Braking and Forward Collision Alert to Lane Keep Assist with Lane Departure Warning and adaptive cruise control, rely on cameras, radar, and sensors. We scan before and after every repair, then perform ADAS calibration to manufacturer specifications so these systems work exactly as designed.
- Glass & Mirror Replacement – We replace windshields, windows, and side and trailering mirrors with OEM-quality materials, restoring correct optical clarity, proper fit, and a weathertight seal, and we recalibrate the forward camera when a windshield replacement calls for it.
- Dent, Ding & Scratch Removal – Not every impact reaches the frame. Paintless dent repair and precise refinishing bring bumpers, fenders, doors, and bed sides back to factory appearance without unnecessary panel replacement.
- Alignment & Suspension Correction – Even a low-speed impact can bend steering and suspension parts. We inspect and replace damaged components and align your GMC to factory specifications, so it tracks straight and handles the way it should.
- Insurance Coordination & White-Glove Service – We work directly with your insurance provider from the first estimate through the final invoice. We’ll tow your GMC to our collision center for free from your home, your office, or any Metro Motor shop, and our towing division can recover it from the site of the accident.
Every repair is completed at our collision centers in Vienna, Virginia, and the Brentwood neighborhood of Washington, D.C., and structural and bodywork repairs are backed by our lifetime guarantee. Request a collision estimate and let us return your GMC to factory condition.
Metro Motor is your go-to choice for exceptional GMC service.
Your GMC is built to work hard, and it deserves care to match. Our ASE-certified technicians and I-CAR Gold Class® certified collision team bring that care to every Sierra, Canyon, Yukon, Acadia, and Terrain, using OEM-level diagnostic equipment, manufacturer procedures, and OEM and manufacturer-recommended parts.
With multiple Metro Motor locations across D.C., Maryland, and Northern Virginia, expert GMC care is always within reach, and appointments are fast and easy: drop off today or book for tomorrow. Schedule service to keep your GMC in peak condition.

