Hennessy GMC Warranty Programs
Peace of Mind Backed by Hennessy & GMC
At Hennessy GMC of Southlake, we believe confidence should come standard—especially when you're buying or servicing a vehicle. That’s why every GMC we sell comes with comprehensive warranty protection designed to keep you covered for the road ahead.
Whether you’re driving through Morrow, commuting into Atlanta, or heading out on a weekend escape across Georgia, GMC’s factory warranty programs deliver unmatched peace of mind. And when it comes to standing behind every mile, Hennessy GMC has your back—with coverage, care, and local trust built since 1964.
What’s Included in GMC’s Factory Warranty Coverage?
GMC vehicles are built to last, and their factory warranty coverage proves it. Here’s a look at the essential protections that come standard with every new GMC vehicle purchased at Hennessy GMC.
1. Bumper-to-Bumper Limited Warranty
This comprehensive warranty covers most parts and systems on your GMC vehicle for 3 years or 36,000 miles, whichever comes first. It includes repairs for defects in materials or workmanship, giving you peace of mind from front grille to rear bumper. Wear-and-tear items like brake pads and wiper blades are excluded, but nearly everything else is fair game.
2. Powertrain Warranty Coverage
Your engine, transmission, and drive systems are protected under GMC’s 5-year/60,000-mile Powertrain Limited Warranty for retail customers. Diesel and fleet vehicles get extended coverage of 5 years or 100,000 miles, offering even greater value. This warranty covers some of the most expensive parts of your vehicle, ensuring long-term reliability and reduced ownership costs.
3. Roadside Assistance and Courtesy Transportation
Get help when you need it most with 5 years or 60,000 miles of 24/7 roadside support—including towing, lockout help, flat tire changes, jump-starts, and more. Courtesy Transportation is also included, so you’ll stay mobile during eligible warranty-covered repairs. It’s one less thing to worry about when you're miles from home or stuck on the side of I-75.
4. Corrosion and Rust Protection
GMC protects your vehicle against the elements with 3 years/36,000 miles of corrosion coverage and 6 years/100,000 miles of rust-through protection. This keeps your investment in top shape, especially in Georgia’s humid climate or after long commutes through metro Atlanta traffic. It's a smart safeguard against time and weather.
5. First Scheduled Maintenance Visit
Included with every new GMC vehicle is a complimentary first maintenance visit, covering your oil change, tire rotation, and a multi-point inspection. It’s GMC’s way of helping you start strong with factory-trained care from day one. And at Hennessy GMC, we make it easy to schedule and enjoy your visit—coffee and snacks included.
From daily drives in Morrow to long hauls across Georgia, these factory-backed protections ensure your new GMC delivers confidence for the long road ahead. Next, let’s explore how Hennessy goes even further with exclusive Certified Pre-Owned coverage.
Hennessy GMC Certified Pre-Owned Warranty Coverage
Buying a pre-owned vehicle shouldn't mean compromising on protection—and at Hennessy GMC of Southlake, it doesn't. Our GMC Certified Pre-Owned (CPO) program offers some of the strongest warranty coverage in the industry, giving you factory-backed confidence without the new-car price tag.
Powertrain Limited Warranty – 6-Year/100,000-Mile
Every CPO vehicle comes with a 6-year/100,000-mile Powertrain Limited Warranty starting from the vehicle's original in-service date. This coverage includes Roadside Assistance and Courtesy Transportation, so you're protected even if the unexpected happens. It’s an ideal match for Atlanta commuters or long-distance drivers who value dependability and durability.
12-Month/12,000-Mile Bumper-to-Bumper Limited Warranty
On top of the powertrain protection, you’ll also receive a 12-month/12,000-mile bumper-to-bumper warranty that acts like an extension of the original new vehicle warranty. It covers nearly every component and system in your GMC—minus normal wear items—so you can drive off our Morrow lot with peace of mind.
172-Point Inspection + Maintenance Coverage
Before a CPO vehicle earns the GMC badge, it must pass a 172-point inspection covering everything from the drivetrain to the cabin electronics. Qualified vehicles also include two scheduled maintenance visits within 2 years or 24,000 miles, helping you stay on track with service right from the start. It’s premium-level assurance without the premium price.
Vehicle Exchange & Extra Perks
Not 100% satisfied? Return your CPO vehicle within 3 days or 150 miles through our Vehicle Exchange Program—no questions asked. You’ll also enjoy added value with a 3-month SiriusXM subscription, OnStar trial, and a free vehicle history report, giving you total transparency before and after your purchase.
When you choose Certified Pre-Owned at Hennessy GMC, you get far more than a used vehicle—you get dealership-backed reliability, protection, and perks designed for Georgia buyers who expect more.
Hennessy Certified Care – Exclusive Used Vehicle Warranty
For used vehicles that don’t qualify for the CPO program, Hennessy Certified Care steps in to keep you protected. This exclusive program gives qualifying used vehicles a safety net you won’t find at most dealerships—and it’s backed by the Hennessy name.
This coverage includes a 3-month/3,000-mile limited warranty, protecting critical systems like the engine, turbo/supercharger, transmission, drivetrain, fuel system, cooling, air conditioning, and electrical components. That’s a wide safety net for shoppers looking at affordable options with reliable backup.
Every Hennessy Certified Care vehicle also comes with 178-point vehicle inspection and emergency roadside assistance, including towing, battery jump-starts, fuel delivery, lockout service, and flat tire support. It's ideal for budget-minded drivers in Atlanta and Morrow who still want serious protection on the road.
Whether you're buying new, certified, or used, Hennessy GMC ensures you’re never left without a plan. Next, let’s break down our parts warranties—because long-term confidence starts with the components that keep you moving.
Hennessy GMC Parts & Service Warranty
At Hennessy GMC, we don’t just sell great vehicles—we stand behind the parts that keep them running strong. Whether you're here for routine maintenance or a major repair, our parts and service warranty options offer unmatched peace of mind for drivers across Morrow and metro Atlanta.
24-Month/Unlimited-Mile Parts Warranty
Most GM Genuine Parts and ACDelco service replacement parts installed at Hennessy GMC are backed by a 24-month/unlimited-mile limited warranty. Labor is included when parts are installed by our certified GM technicians. From brake rotors to alternators, you’re covered with factory-approved components and professional installation.
Limited Lifetime Warranty Coverage
For select GM and ACDelco parts—like radiators, fuel pumps, struts, shocks, and wheel bearings—you’ll receive lifetime warranty protection. As long as you own your vehicle, those parts are covered when installed at our dealership. It’s a powerful way to protect your investment over the long haul, especially if you're keeping your GMC for the long run.
12-Month/Unlimited-Mile ACDelco Warranty
Some select ACDelco parts also include a 12-month/unlimited-mile warranty, offering added flexibility and value for everyday service needs. With labor included when installed at Hennessy GMC, it’s the smart choice for drivers who prioritize both performance and protection in their routine maintenance.
No matter what your service needs are—from repairs to upgrades—our warranty-backed parts program ensures you're never rolling the dice when it comes to quality.
Why Choose Hennessy GMC for Warranty Support?
As a family-owned dealership proudly serving Morrow, Atlanta, and beyond since 1964, Hennessy GMC brings a reputation built on trust, transparency, and top-tier customer care. When it comes to warranty support, our team doesn't just explain the fine print—we make sure you understand your coverage and feel confident every step of the way.
We also offer a comfort-first experience while your vehicle is in for service, with complimentary Starbucks coffee, local snacks, and bakery treats in our waiting lounge. And beyond the showroom, our team actively supports community initiatives across Georgia, from Mercy Care to Toys for Tots—because we believe in driving change both on and off the road.
At Hennessy GMC, warranty coverage isn’t just a checklist—it’s our promise to keep you moving forward with confidence.
Frequently Asked Questions About GMC Warranty Coverage
Understanding your warranty is just as important as the coverage itself. Below are the most common questions we hear from drivers around Morrow and the greater Atlanta area about GMC warranty programs and what they mean for your ownership experience.
Why is the GMC Powertrain Warranty important?
The GMC Powertrain Warranty covers the engine, transmission, and drivetrain for 5 years or 60,000 miles, protecting the most expensive parts of your vehicle. It provides peace of mind against major repairs due to factory defects—essential for both daily commuters and long-distance drivers in Georgia.
Do GMC warranties cover regular maintenance?
No, routine maintenance isn’t included in standard GMC warranties. However, your first scheduled maintenance visit is covered, which includes an oil change, tire rotation, and multi-point inspection—perfect for kicking off your ownership the right way.
Can I transfer my GMC warranty if I sell the vehicle?
Yes, GMC’s New Vehicle Limited Warranty and Powertrain Limited Warranty are transferable to the next owner. This can add real resale value and provide added buyer confidence, especially in competitive markets like Atlanta.
How long is GMC’s Bumper-to-Bumper Warranty?
The Bumper-to-Bumper Limited Warranty lasts for 3 years or 36,000 miles, covering nearly all components from front to back. It includes both parts and labor for approved repairs, with no deductible required.
Are electric vehicle components covered by GMC warranties?
Absolutely. All GMC EVs—including models like the Hummer EV—come with an 8-year or 100,000-mile warranty covering the battery and electric drive components. That’s strong protection for cutting-edge technology.
How do GMC warranties compare to other brands?
While GMC’s powertrain coverage may not match Hyundai’s 10-year term, it includes 5 years of Roadside Assistance and Courtesy Transportation, which many brands limit. That’s valuable support when you need it most—especially for Georgia drivers who spend serious time on the road.
Does Hennessy GMC offer additional warranty options?
Yes! In addition to standard factory coverage, Hennessy GMC provides Certified Pre-Owned warranties, Hennessy Certified Care, and parts warranties that include labor when installed at our dealership. It’s coverage that goes beyond the basics.
What does Hennessy Certified Care cover?
Our 3-month/3,000-mile limited warranty for qualifying used vehicles covers vital systems including the engine, turbo components, transmission, electrical, and A/C. It also comes with roadside assistance and a 178-point inspection, giving used car buyers added confidence.
Where can I schedule a warranty-covered service in Morrow, GA?
Right here at Hennessy GMC of Southlake. Our service center is equipped to handle all warranty-related repairs and maintenance, with certified GM technicians ready to help. Schedule online or give us a call at (888) 713-6544.
Ready to Protect Your Investment? Contact Hennessy GMC Today
Whether you're shopping for a brand-new GMC, exploring Certified Pre-Owned options, or servicing the vehicle you already love, our warranty programs give you real protection and real peace of mind. From powertrain confidence to roadside support, you’ll get dealership-backed coverage that travels with you—from Morrow to Atlanta and everywhere in between.
At Hennessy GMC of Southlake, we make it easy to understand your coverage and even easier to take advantage of it. Our team is here to walk you through your options, help you schedule service, and answer any questions you have about GMC factory warranties, Certified Pre-Owned benefits, or our exclusive Hennessy Certified Care.
Stop by today at 7261 Jonesboro Rd., Morrow, GA 30260, or call us at (888) 713-6544 to speak with one of our warranty specialists. Let’s protect your GMC—and your peace of mind—starting now.