Service

Karl GMC of Marshalltown — Service Department

Service Department

General Questions: 641-354-7553

Call to schedule: 641-354-7553

Schedule Appointment

1000 N 3rd Ave, Marshalltown, IA 50158

Service Department Hours

Monday: 7:30 am - 5:30 pm
Tuesday: 7:30 am - 5:30 pm
Wednesday: 7:30 am - 5:30 pm
Thursday: 7:30 am - 5:30 pm
Friday: 7:30 am - 5:30 pm
Saturday: 8:00 am - 12:00 pm
Sunday: Closed

Starting At Prices

6 Quart Oil Change: $109.95
8 Quart Oil Change: $119.95
Air Filter: $50.00
Cabin Air Filter: $42.00
Wiper Blades: $25.00

Service in Marshalltown

Karl GMC of Marshalltown's Certified Service team is trained specifically on GMC trucks and SUVs and uses GM Genuine Parts and ACDelco components on every repair. Drivers across Marshalltown, Ames, Nevada, Tama, Toledo, Eldora, Grundy Center, and Central Iowa trust our service center for accurate diagnostics and repairs done right the first time.

Services We Offer

  • Battery testing and replacement
  • Brake service and inspections
  • Engine diagnostics and check engine light service
  • Heating and air conditioning repair
  • Multi-point vehicle inspections
  • Oil changes and routine scheduled maintenance
  • Steering and suspension service
  • Tire services including balancing, installation, replacement, and rotation
  • Transmission service and repair
  • Wheel alignment service

GMC Certified Service Experts

The technicians at Karl GMC of Marshalltown are trained specifically on GMC trucks, SUVs, and commercial vehicles. Whether you drive a Sierra 1500, Sierra 2500 HD, Sierra 3500 HD, Canyon, Acadia, Terrain, or Yukon, our Certified Service experts know precisely which parts your vehicle needs and use the same GM Genuine Parts and ACDelco components used to build it.

As one of the first dealerships in the Marshalltown area to offer scheduled oil change appointments, we give drivers a faster, more predictable service experience alongside walk-in availability at our on-site oil change center and car wash.

Karl GMC of Marshalltown Certified Service technician working on a GMC vehicle
Karl GMC of Marshalltown technician performing an oil change

Routine Maintenance That Keeps You on the Road

Oil changes, tire rotations, brake inspections, battery testing, and multi-point inspections are the foundation of a healthy vehicle. Our team follows GM-recommended maintenance schedules so small issues get caught before they become expensive repairs.

Our full collision and body shop also provides complete accident restoration for all makes and models, including structural repair, precision paint matching, and safety system recalibration. Schedule a service appointment online or call 641-354-7553.

Serving Truck and SUV Owners Across Marshall County

Karl GMC of Marshalltown opened its doors in April 2024 as one of the newest additions to Karl Auto Group, bringing a full GMC lineup and Certified Service center to central Iowa. Since then, our team has built a reputation as one of the first dealerships in the area to offer scheduled oil change appointments, giving drivers a faster, more predictable alternative to walk-in-only service.

Whether you're keeping a work-ready Sierra on the job or maintaining a family Acadia, our service advisors work around your schedule, not the other way around. As part of Karl Auto Group's Dealer for Life promise, that same commitment carries drivers throughout Marshall County and Central Iowa, including Marshalltown, Ames, Nevada, Tama, Toledo, Eldora, and Grundy Center.

Karl GMC of Marshalltown service waiting area

Frequently Asked Questions — Karl GMC of Marshalltown Service

What's the fastest way to get my GMC in for service?+
Book online through our service scheduling page for the quickest confirmation, or call 641-354-7553 to speak with a service advisor directly. As one of the first dealerships in the area to offer scheduled oil change appointments, we're able to get most drivers in faster than a walk-in-only shop.
What are your service hours, and can I get in on a Saturday?+
We're open Monday through Friday from 7:30 am to 5:30 pm, plus Saturday mornings from 8:00 am to 12:00 pm for drivers who can't make it in during the week. We're closed Sundays.
I didn't buy my GMC here. Can you still service it?+
Absolutely. Our Certified Service experts work on any GMC truck, SUV, or commercial vehicle no matter where it was purchased. Drivers from Ames, Nevada, Tama, Toledo, Eldora, Grundy Center, and beyond bring their vehicles to us regularly.
Does it matter if my technician uses GM Genuine Parts?+
It does. GM Genuine Parts and ACDelco components are built to your vehicle's exact factory specifications, so fit and performance stay consistent and your warranty stays protected. Aftermarket substitutes can fall short on both counts, which is why we don't use them.
How many miles can I go between oil changes?+
Most GMC trucks and SUVs are engineered for intervals between 5,000 and 7,500 miles, but the right number depends on your engine, oil type, and how you drive. Tell your advisor your typical mileage and driving conditions and they'll confirm the interval for your specific model.
Is there a way to check if my vehicle has an unresolved recall?+
Yes, just give us your VIN and we'll check it against open manufacturer recalls and technical service bulletins on the spot. If your vehicle is affected, that repair is completed at no cost to you.
My vehicle needs a repair that will take more than a day. What are my options for getting around?+
Talk to your service advisor when you drop off your vehicle. Depending on availability, we can typically set you up with a loaner vehicle or a shuttle ride so a longer repair doesn't leave you stranded.
If my GMC is in an accident, can Karl GMC of Marshalltown handle the repair?+
Yes. We have a full collision and body shop on site that handles complete accident restoration for any make or model, including structural repair, factory-matched paint, and recalibration of driver assistance and safety systems after the repair is complete.
Can you work on more than just oil changes and tires?+
Yes, our technicians handle the full range, from engine and transmission diagnostics to suspension, steering, air conditioning, and wheel alignments, on Sierra, Canyon, Acadia, Terrain, Yukon, and every other GMC model on the road.
What makes dealership service worth it over a local repair shop?+
Our advisors and technicians are trained specifically on GMC vehicles and use GM Genuine Parts on every job, a level of factory-specific expertise most independent shops don't have access to. It's also backed by Karl Auto Group's Dealer for Life promise, a commitment to customers that's carried through since the company was founded in 1978.

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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

Keep Your Sierra 1500, Sierra 2500 HD, Terrain, Acadia or Savana Cutaway 3500 in Top Shape Near Grinnell IA, Nevada IA, Ames IA, Bondurant IA and Altoona IA

If you've ever received unsatisfactory service on your GMC model, then you understand the value of a team who knows what your car needs for optimum performance. When you bring your vehicle to Karl GMC of Marshalltown, you can count on our trained technicians to do it right the first time because they have the right tools for the job. To us, you're more than a customer; you're family.

Karl GMC of Marshalltown Covers the Bases for Routine and Large Repairs Alike

Whether you need routine maintenance or need a professional diagnosis on an issue your car, truck or SUV is having, we're able to help. Services like oil changes, tire rotations, alignments, and filter replacements are very common and performed daily in our service center. We also have the right technology and tools to find and repair any vehicle issue you might be having, be it vehicle noises or the performance is off. With a team that knows all the inner workings of your GMC, you can place your trust in us as we care for your vehicle.

Get Routine Maintenance & Repairs for Your Sierra 1500, Sierra 2500 HD, Terrain, Acadia or Savana Cutaway 3500 in Marshalltown

Contact us today with questions about the services we provide or to schedule an appointment with our team at Karl GMC of Marshalltown. We have the experience and dedication to repair and maintain your Sierra 1500, Sierra 2500 HD, Terrain, Acadia or Savana Cutaway 3500, and it only takes a moment to learn how we can help you. You can set up your appointment with us today and get closer to building a relationship with a team who cares.