GMC 1 Welcome to On Site Auto Repair!

GMC Auto Repair in Santa Rosa, CA

  • GMC Professionals: Certified repairs and maintenance for all GMC Trucks and SUVs (Sierra, Yukon, etc.).
  • Quality & Expertise: Service using quality parts and expert diagnostics to keep your GMC running strong.
  • Local Trust: Proudly serving Santa Rosa and surrounding areas since 2010.

Serving Santa Rosa Since 2011

★★★★★ 4.9/5 (117 Google Reviews)

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On Site Auto Repair: Your GMC Service Experts in Santa Rosa

GMC: Synonymous with Quality Trucks, SUVs, and Vans

GMC, a distinguished division of General Motors, is celebrated for its formidable range of trucks, SUVs, and vans. Models like the Sierra, Yukon, and Savana set the bar high with their unique features and upscale designs, making them leaders in the full-size pickup and large SUV segments. At On Site Auto Repair in Santa Rosa, we specialize in maintaining the excellence of these vehicles.

Comprehensive GMC Maintenance and Repair Services

On Site Auto Repair offers a full spectrum of repair and maintenance services designed to keep your GMC performing flawlessly on the streets of Santa Rosa. Our array of services includes:

  • Brake Services: We prioritize your safety by ensuring your GMC’s brakes are in top condition through regular maintenance and necessary repairs.
  • Oil Changes & Lube Service: Choose from our selection of premium oils tailored to your GMC’s specifications, ensuring optimal engine health and performance.
  • Starting & Charging System Services: Depend on us for meticulous care of your GMC’s electrical components, including the starting, charging systems, and battery for assured vehicle reliability.
  • Routine Maintenance and Inspections: Regular upkeep and our complimentary vehicle inspections are key to avoiding expensive repairs and extending the life of your GMC.

Local Expertise and Personalized Service

As a cornerstone of the Santa Rosa community, On Site Auto Repair is committed to upholding a reputation built on expert service and personal care. When you bring your GMC to us, we not only understand your vehicle needs but also align them with your personal goals. Expect transparent and honest vehicle assessments, ensuring a no-surprises approach to your auto repair experience.

Choose On Site Auto Repair for Your GMC in Santa Rosa

For all GMC drivers in Santa Rosa, On Site Auto Repair is your destination for exemplary automotive care. Visit us, call, or schedule an appointment online for expert GMC services delivered by a team dedicated to your satisfaction.

Frequently Asked Questions (FAQs) at On Site Auto Repair

What GMC models does On Site Auto Repair service?

Our expertise covers all GMC models, including the Sierra, Yukon, Savana, and beyond.

What GMC services do you offer?

From brake servicing and oil changes to electrical system maintenance and routine check-ups, we provide a comprehensive suite of services for your GMC.

Why should I choose On Site Auto Repair for my GMC vehicle?

Our blend of high-quality service, local community understanding, and a commitment to customer satisfaction makes us the top choice for GMC maintenance and repair in Santa Rosa.

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What Our Clients Say

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Mercedes Repair

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Acura Repair

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Kia Repair

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Hyundai Repair

Subaru Auto Repair Santa Rosa

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Mazda Repair

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Contact Info

Location

363 W 9th St B & C
Santa Rosa, CA 95401

Phone

707-326-8655

Hours

  • Monday-Thursday: 7:30 AM - 4:30 PM
  • Friday: 7:30 AM - 12:00 PM
  • Saturday: Closed
  • Sunday: Closed

New Customer Special:

$25 Off First Service Over $100

Oil Change Special:

Full Synthetic Oil Change – $69.9

Free Brake Inspection

Complete brake system check at no charge

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Our Blog

Latest News

Why Is My Car Taking Forever to Warm Up in Rohnert Park? What a Slow-Warming Engine Actually Means

Why Is My Car Taking Forever to Warm Up in Rohnert Park? What a Slow-Warming Engine Actually Means

If your car is taking unusually long to reach normal operating temperature in Rohnert Park or anywhere in Sonoma County, it’s not just an inconvenience — it’s often a sign that your thermostat or cooling system needs attention. A slow-warming engine can hurt fuel economy, trigger the check engine light, and cause long-term engine wear. Here’s what’s actually going on and when to get it looked at.

Why Is My Car Hesitating When I Accelerate in Santa Rosa? What’s Causing That Sluggish Response

Why Is My Car Hesitating When I Accelerate in Santa Rosa? What’s Causing That Sluggish Response

If your car hesitates, stumbles, or feels sluggish when you press the gas pedal in Santa Rosa or anywhere in Sonoma County, something is off — and it’s usually more than just a minor annoyance. This article explains the most common causes of acceleration hesitation, what warning signs to watch for, and when it’s time to bring your vehicle in before a small problem turns into a costly repair.

Why Is My Car Making a Grinding Noise When I Turn in Petaluma? What’s Going On with Your CV Axles and Wheel Bearings

Why Is My Car Making a Grinding Noise When I Turn in Petaluma? What’s Going On with Your CV Axles and Wheel Bearings

A grinding or clicking noise when you turn your steering wheel is one of those symptoms you shouldn’t ignore — it usually means your CV axles or wheel bearings are telling you something important. If you’re driving around Petaluma or anywhere in Sonoma County and noticing this sound, here’s what it actually means and when to get it checked.

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Our Services

Read More About Our Auto Mechanic Services

Auto Repair In Santa Rosa

On Site Auto Repair in Santa Rosa is a full service auto mechanic shop. Our auto mechanics are certified and are here to help with all of your repair needs. No auto repair job is too big or too small for On Site Auto Repair. We handle all types of auto repair, including regular maintenance, engine repair, brake work, and troubleshooting. If you are looking for honest and reliable auto mechanics, give us a call today. Ask us about our new customer specials.

Transmission Repair In Santa Rosa

Vehicles are usually described as 5 speed or 6 speed, meaning they have that many gear ratios. Those gears let the vehicle travel across the full range of speeds and use the engine's power efficiently. Transmissions are complex and are in constant use, so they take a lot of wear and tear. Many owners also forget to check and change the fluid on a regular schedule. That is why transmission problems are so common. At On Site Auto Repair in Santa Rosa, our transmission technicians can diagnose, repair, or replace your transmission. If you are looking for an honest transmission repair shop, give us a call today.

Transmission Repair In Santa Rosa
Brake Service In Santa Rosa

There are several warning signs that your vehicle can give you before your brakes may reach the point of potential failure or extensive repair. Whether composed of ceramic, semi-metallic, or organic materials, brake pads erode each time you depress the brake pedal. If the pads wear down too much without being replaced, the metal housing for the pads will make contact with the metal rotors (or drums), which may produce not only a safety issue but a situation where the rotors/drums are required to be replaced as a result of the prolonged contact of metal parts without the pad buffer. If you are in need of an affordable brake repair mechanic in Santa Rosa, please do not hesitate to schedule an appointment today!

Vehicle Inspection In Santa Rosa

Vehicle Inspection In Santa Rosa

The key to top notch automotive repair and troubleshooting lies in a thorough understanding of what’s actually going on under the hood. Sure, you know that a radiator keeps your engine cool, but understanding how it keeps it cool is the key to solving technical problems efficiently. If you know which parts perform what function, your powers of diagnosis will be much more powerful.

Vehicle Inspection In Santa Rosa
Radiator Inspection Service In Santa Rosa

Radiator Inspection Service In Santa Rosa

Ensuring that your vehicle’s engine cooling system is in proper operating condition is extremely essential to engine life and performance. Operating at excessive temperatures can lead to premature engine wear. Your vehicle’s engine cooling system should be checked periodically, and a radiator coolant flush is also recommended to prohibit radiator corrosion. On Site Auto Repair will thoroughly drain and power flush the old coolant and particulates, and refill the cooling system with your vehicle manufacturer’s recommended coolant.

SANTA ROSA WEATHER
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Our Santa Rosa Service Area – Directions to On Site Auto

Proudly serving drivers throughout Santa Rosa neighborhoods, from Railroad Square to Bennett Valley, and extending our trusted auto repair services to Petaluma, Sebastopol, Windsor, and all of Sonoma County.

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Auto Repair Services We Offer in Santa Rosa, CA

Our shop at 363 W 9th St B & C handles a wide range of repairs and maintenance for drivers across Santa Rosa and Sonoma County.

Engine Diagnostics and Check Engine Light

A check engine light means your car is reporting a fault. We connect an OBD-II scanner, read the fault codes, and explain what they mean in plain language. We diagnose the problem first, then tell you what the repair will cost.

Oil Change Service

We do full-synthetic and conventional oil changes. We use the viscosity grade your manufacturer specifies, such as 5W-30, 5W-20, or 0W-20, and we replace the oil filter every time.

Brake Repair and Replacement

Worn brake pads squeak. Worn rotors grind. A soft brake pedal is a warning. We inspect and replace brake pads, rotors, and calipers using OEM-quality and aftermarket parts, depending on your budget.

Battery, Alternator, and Starter Repair

We test your battery with a load tester, not just a voltage check. We also test the alternator and starter, because a failing alternator will kill a new battery quickly.

AC and Heating Repair

If your AC is not blowing cold, we recharge the refrigerant and check for leaks. If your heat is not working, we diagnose the cause and repair it.

Scheduled Maintenance and Tune-Ups

We handle spark plug replacement, belt inspection and replacement, air and cabin filter replacement, fuel system service, coolant flushes, and transmission fluid service. If you are not sure what your car is due for, we look it up by make, model, and mileage.

Tire Rotation and Inspection

Uneven tire wear affects handling, fuel economy, and tire life. We rotate your tires, measure tread depth, inspect the sidewalls, and check the pressure.

Pre-Purchase Inspection

Thinking about buying a used car? We check the brakes, belts, fluids, undercarriage, and suspension, and we run a diagnostic scan for hidden fault codes. Call for current pricing.

Why Santa Rosa Drivers Choose On Site Auto Repair

Free estimates. You know the cost before we start any work.

Same-day appointments available. Call and we will tell you what we can fit in today.

ASE Certified mechanics. Credentialed professionals with real diagnostic tools.

Convenient location. We are in Railroad Square, minutes from downtown Santa Rosa, with shops and restaurants in walking distance while you wait.

Ready to Book?

Call (707) 326-8655 or send us a message with your vehicle and what is going on with it. We will give you a free estimate before we schedule anything.

On Site Auto Repair — 363 W 9th St B & C, Santa Rosa, CA 95401. Serving Santa Rosa, Petaluma, Rohnert Park, Sebastopol, Windsor, Healdsburg, and Sonoma County.

Contact On-Site Auto Repair Today

Ready to experience honest, reliable auto repair in Santa Rosa?

Whether you're dealing with a check engine light, need routine maintenance, or facing an unexpected breakdown, our ASE-certified mechanics are here to help. We serve drivers throughout Santa Rosa and Sonoma County with the same commitment to quality and honesty that has made us the area's most trusted auto repair shop.

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