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Johnny's AutomotiveJohnny's Automotive
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GMC Auto Repair & Service

GMC truck and SUV service in Central Florida. Towing and heavy use handled honestly, ASE certified techs, inspection photos, 36 month nationwide warranty on repairs.

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My GMC works for a living. Can an independent shop keep up?

GMC trucks around here earn their keep. Sierras pulling boats and trailers, Canyons running back roads, Yukons and Acadias hauling families and gear in the same week. Towing and Florida heat are hard on any vehicle, and they're hard in predictable ways. Transmissions, cooling systems, brakes and tires all work harder when there's weight behind you, and they wear on a shorter clock than a mileage chart assumes.

We're an independent shop, not a dealership, and our ASE certified technicians service GMC trucks and SUVs every week. If you tow, tell us how much and how often. That one detail changes what we watch and how often we suggest looking at it, and it's exactly the kind of thing a generic service interval can't account for.

Every job includes a digital inspection with photos sent to your phone, so you can see the brake measurement or the condition of the fluid yourself instead of taking our word for it. You approve the work before anything starts.

We handle factory scheduled maintenance and keep the records, so servicing your truck close to home doesn't put a factory warranty at risk. Our work carries a 36 month, 36,000 mile nationwide warranty, which is worth something when the truck spends its days away from the shop. Six locations: Haines City, Winter Haven, Lake Wales, Frostproof, Sebring and Wauchula.

What we offer

GMC services we offer

Our technicians provide comprehensive GMC service.

GMC Battery Service

Avoid getting stranded with professional battery testing, terminal cleaning, and replacement using reliable, warranty-backed batteries.

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GMC Brake Repair

Squealing or grinding brakes? Complete brake inspection, pads, rotors, and fluid service for safe stopping power.

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GMC Check Engine Light

Check engine light on? We pinpoint the exact cause with advanced diagnostics and provide clear repair options, no guesswork.

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GMC Computer Diagnostics

State-of-the-art computer scanning that reads every system in your vehicle to identify problems accurately before any work begins.

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GMC Engine Repair

From minor fixes to major overhauls, our ASE-certified mechanics diagnose and repair engine problems of all types and complexities.

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GMC Fluid Services

Keep your vehicle running smoothly with transmission, coolant, brake, and power steering fluid flushes and top-offs.

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GMC Oil Change

Keep your engine protected with conventional or synthetic oil changes using quality filters.

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GMC Suspension & Steering

Restore smooth handling with shocks, struts, tie rods, and wheel alignment service. Fix pulling, bouncing, and uneven tire wear.

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GMC Tire Rotation

Even out tire wear and extend tire life with regular rotation service. Helps maintain traction, handling, and ride comfort.

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GMC Transmission Service

Transmission slipping or shifting rough? Expert diagnosis, fluid service, and repair for automatic and manual transmissions.

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Recent GMC work

What's come through the shop lately

At our Haines City shop

7 GMC jobs at our Haines City shop in the last 12 months.

GMC at our Haines City shop

At our Sebring shop

1 GMC job at our Sebring shop in the last 12 months.

GMC at our Sebring shop

At our Winter Haven shop

1 GMC job at our Winter Haven shop in the last 12 months.

GMC at our Winter Haven shop

At our Frostproof shop

4 GMC jobs at our Frostproof shop in the last 12 months.

GMC at our Frostproof shop

At our Lake Wales shop

2 GMC jobs at our Lake Wales shop in the last 12 months.

GMC at our Lake Wales shop
Reviews

What GMC owners say about our work

The crew at Johnny is so professional and kind they did great job on my Yukon! Will highly recommend this shop for your repairs. The rose was a nice touch for the wife. Thank you

Bob & Carolyn Reed

Verified Google Review

Took my GMC 3500HD in for front end service. They took the time to deal with my extended warranty company, difficult to do at best, and worked thru those issues. Work was completed promptly after approval was received. Johnny’s will be my service shop for any future issues.

artie ray

Verified Google Review

I needed my car looked at for a transmission leak . Sierra was Great. They helped me out and I was patient because they didn’t have to take me today but they did and it’s also the day before the 4th!! Marty and Mary are the absolute Best !! Thank you 🙏🏽

Deresia Taniese

Verified Google Review

Why us

Why choose us for GMC

Service planned around how you use the truck

Tell us you tow and the recommendations change. Weight behind the vehicle affects fluids, brakes and cooling long before the odometer says it should.

ASE certified techs on Sierras and Yukons

These are regulars in our bays, not an occasional job, so time gets spent on the actual fault rather than on getting familiar with the truck.

Warranty that follows the truck out of town

Our 36 month, 36,000 mile coverage is nationwide, so a repair holds up whether you're on a job site two counties over or a state away.

Photo documented findings

Digital inspections land on your phone with pictures attached, which makes it easy to decide what to handle now and what to schedule for later.

Maintenance records kept for you

We perform the factory schedule and file the proof, so your factory warranty stays protected while you service the truck near home or work.

FAQ

GMC questions, answered

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ASE Certified Technicians

ASE certified techs working on your vehicle

Flexible Drop-Off Hours

Convenient service options

20+ Years

2 decades of trusted service