Your complete satisfaction is important to us, and we're here to help. Please select your preferred contact choice below.




QUESTION: Is GMC currently offering any incentives or Special Offers?

ANSWER: Incentive offers vary throughout the year. To see GMC’s national or regional incentives visit the GMC Special Offers page or, to inquire about any potential local offers, visit the GMC Dealer Locator. If you would prefer to contact us by phone, we can be reached at 1-800-462-8782 Monday - Friday, from 8:00 a.m. to 9:00 p.m. (Eastern Standard Time) and Saturday 9:00 a.m. to 6:00 p.m. (Eastern Standard Time).

QUESTION: What are the different option packages and prices?

ANSWER: Because the available options and their prices vary from model to model, it's best to ask your dealer for the specifics. He or she will be glad to explain the options available for the model you're interested in. To locate a GMC dealer please visit the GMC Dealer Locator.

QUESTION: When can I place an order for next year's model?

ANSWER: Ask your local GMC dealer for specifics about the model you're interested in. He or she will be glad to provide you with a schedule. To locate a GMC dealer please visit the GMC Dealer Locator.

QUESTION: How can I obtain additional information on a new GMC before the vehicle is produced?

ANSWER: Most new GMC launch vehicles have a link on their product page that allows consumers to sign up and receive email updates as additional information becomes available on the new launch vehicle.

QUESTION: How are trade-in values determined?

ANSWER: Your trade-in value is determined by the Dealer and could vary based on many factors, including mileage, the overall condition of your vehicle, the popularity of your vehicle and current regional market conditions. Check with your Dealer for details.

QUESTION: Can I purchase a GMC directly from the factory?

ANSWER: No. However, you may order a vehicle from the factory through an authorized GMC dealer. To locate a GMC dealer please visit the GMC Dealer Locator.

QUESTION: Can I apply online for financing before I go to a dealership?

ANSWER: Yes, just fill out and submit the online Credit Application to a dealer you select.


QUESTION: What is E85 Ethanol?

ANSWER: E85 Ethanol, a blend of 85% ethanol and 15% gasoline, is a renewable fuel made mostly from U.S.-grown corn. E85 Ethanol Flexible Fuel Vehicles (FFV) are designed to run on E85, gasoline, or any blend of the two.

QUESTION: Where can I find information about air bags/supplemental inflatable restraints on GMC vehicles?

ANSWER: To learn about the specific items on your vehicle, please refer to Section 1 in your GMC Owner's Manual, "Seats and Restraint Systems". For general information please visit the safety section on the GM website.

QUESTION: What is Electronic Stability Control (i.e., StabiliTrak) and how does it work?

ANSWER: Stability enhancement systems help drivers maintain control of vehicles during certain low traction driving conditions such as ice, snow, gravel, wet pavement and uneven road surfaces, as well as in emergency lane changes or avoidance maneuvers. For more details as well as how the system works, please visit the StabiliTrak section on the GM website.

QUESTION: What is the difference between all-wheel drive and four-wheel drive?

ANSWER: A vehicle equipped with all-wheel drive temporarily transfers power to all four driving wheels automatically when the need is sensed by the vehicle. A vehicle equipped with four-wheel drive (4x4) can transfer power from two wheels to all four wheels upon driver demand, usually by pushing a button or turning a switch.

QUESTION: What is the difference between Curb Weight and Gross Vehicle Weight?

ANSWER: Curb Weight is the weight of an empty vehicle (without payload or driver) with standard equipment, fuel, coolant, and oil. It is also known as the vehicle weight. Gross Vehicle Weight is the actual weight of the entire vehicle and its contents, including fuel and occupants.

QUESTION: What is the Gross Vehicle Weight Rating (GVWR)?

ANSWER: GVWR, when properly equipped, includes weight of vehicle, passengers, cargo, and equipment. Exceeding this weight is not recommended.

QUESTION: What is Payload?

ANSWER: Payload is the maximum allowable weight of cargo to be carried in a vehicle, including all occupants and optional equipment. It is computed by subtracting curb weight from GVWR.

QUESTION: How can I obtain a conversion package on my GMC vehicle?

ANSWER: Your local GMC dealer should be able to assist you in finding the best conversion company to fit your needs and should be able to handle the details of having the conversion done to your vehicle. Go to the GMC Dealer Locator to locate a GMC dealer in your area.

QUESTION: Where can I learn more about the Duramax Diesel engine and its availability on GMC trucks and SUVs?

ANSWER: The optional DURAMAX diesel V8 engine has been designed to satisfy the customer's need for heavy duty power, durability, and fuel efficiency. It is the most powerful diesel ever produced for a GM heavy duty pickup or chassis cab. It is currently available in 2500HD and 3500 GMC Sierra trucks. To learn more about the DURAMAX diesel engine and its future availability on other GMC vehicles, please contact your local GMC dealer. Go to the GMC Dealer Locator to locate a GMC dealer in your area.

QUESTION: What is OnStar®?

ANSWER: OnStar is now offered on nearly every GM vehicle sold in the US and Canada. OnStar is the in-vehicle safety and security system created to help protect you and your family on the road. OnStar's innovative three-button system offers:

24-hour access to expertly trained, caring advisors

A connection to emergency assistance

Access to OnStar Hands-Free Calling in covered areas (prepaid calling charges apply)

Call 1-888-4-ONSTAR (1-888-466-7827) or visit for system limitations and details.

QUESTION: What is OnStar® Vehicle Diagnostics?

ANSWER: OnStar Vehicle Diagnostics is an exclusive new service that runs diagnostic checks on a vehicle's key operating systems and sends the customer monthly reports by e-mail. It's available only from OnStar and GM – just one more way OnStar helps give you peace of mind on the road. Visit for more information.


QUESTION: What is GMC 100,000-Mile/5-year Powertrain Warranty?

ANSWER: All 2007 through 2014 passenger cars and light duty trucks are covered. The Powertrain Limited Warranty is 100,000 miles or 5 years (whichever comes first). It is fully transferable and there are no fees and no deductibles. The Roadside Assistance and Courtesy Transportation programs are also 100,000 miles or 5 years (whichever comes first). For more details, please visit your GMC dealer or click here.

QUESTION: How is the bumper-to-bumper warranty affected by this 100,000-mile/5-year warranty?

ANSWER: The bumper-to-bumper New Vehicle Limited Warranty on new GMC light-duty trucks remains in effect for three years or 36,000 miles (whichever comes first). For more details, please visit your GMC dealer or click here.

QUESTION: Why has GM elected to make this change?

ANSWER: This move is intended to provide you with an unprecedented level of value, confidence, and protection. As a result, GM is elevating your total vehicle ownership experience with the best, most comprehensive consumer confidence package in the industry.

QUESTION: What about Courtesy Transportation?

ANSWER: Courtesy Transportation is also included for 5-years/100,000 miles (whichever comes first) on all 2007 through 2014 GMC light duty trucks. Whenever warranty repairs are required, several transportation options and/or reimbursement of certain transportation expenses are available for your convenience at participating dealers/retailers.

QUESTION: What does the bumper-to-bumper warranty cover?

ANSWER: The bumper-to-bumper New Vehicle Limited Warranty covers vehicles registered in the U.S. and Canada from the date the vehicle is first delivered until it reaches three years or 36,000 miles (whichever occurs first). It covers the vehicle from bumper to bumper on any vehicle defect related to materials or workmanship. For further details, look in the Owner's Manual under "What Is Covered" and "What Is Not Covered."

QUESTION: Is my vehicle covered from rust, too?

ANSWER: GMC vehicles are designed and built to resist corrosion. All body and sheet metal components are warranted against rust-through corrosion for 6 years/100,000 miles (whichever comes first). Application of additional rust-inhibiting materials is neither necessary nor required under the Sheet Metal Coverage. GMC makes no recommendations concerning the usefulness or value of such products. Application of after-manufacture rustproofing products may create an environment which reduces the corrosion resistance built into your vehicle. Repairs to correct damage caused by such applications are not covered under your New Vehicle Limited Warranty. See your GMC dealer for terms of this limited warranty.

QUESTION: Do I have to go the GMC dealer where I purchased my vehicle to have this type of work performed?

ANSWER: Your local GMC dealer should be able to assist you in finding the best conversion company to fit your needs and should be able to handle the details of having the conversion done to your vehicle. Go to the GMC Dealer Locator to locate a GMC dealer in your area.

QUESTION: Can I take my GMC to any GM dealership for warranty repairs?

ANSWER: These repairs must be performed by an Authorized GMC dealer, except in an emergency situation when a covered part or a GMC dealer is not reasonably available to the vehicle owner. It's in your best interest to take your GMC vehicle to a GMC dealer for all repairs since they are the most knowledgeable about the particulars of your vehicle.


QUESTION: What is GMC's Maintenance Program?

ANSWER: Your 2014 GMC vehicle comes with 2 years/24,000 miles of scheduled maintenance* that includes:

  • Oil and oil filter service
  • Four wheel tire rotation (single axle)
  • Multipoint Inspection
QUESTION: What is ProGrade Protection?

ANSWER: Introducing GMC ProGrade Protection. Two years of scheduled maintenance*, a 3-year/36,000-mile Bumper-to-Bumper Warranty†† and a 5-year/100,000-mile Powertrain Warranty†† - all included with your purchase or lease of any 2014 GMC model. Add to that the confidence of a 5-year/100,000-mile, whichever comes first, Roadside Assistance & Courtesy Transportation†† and a 6 month trial of OnStar†††, on most GMC vehicles, and you can rest assure that ProGrade Protection has you covered, no matter what comes your way.

QUESTION: Who do I contact if I have a concern with my vehicle?

ANSWER: Your satisfaction and goodwill are important to your dealer and to GMC. Normally, any concerns with the sales transaction or the operation of your vehicle will be resolved by your dealer's sales or service departments. The first step is to discuss your concern with a member of dealership management. Normally, concerns can be quickly resolved at that level. To locate a GMC dealer, please visit the GMC Dealer Locator.

QUESTION: Why are Certified Service trained technicians so important?

ANSWER: From changing oil to changing engines, these automotive experts use only Genuine GM Parts & Accessories that are designed specifically for your GM vehicle. They're also tested for performance and reliability. So no matter what kind of GM vehicle you own, trust it to the Certified Service trained technicians at your GM dealer. You'll spend less time in the shop and more time on the road. For more details, please visit

QUESTION: How do I obtain an Owner's Manual?

ANSWER: There are two ways to obtain a copy:

1. You can register your vehicle by visiting the GMC Owner Center to download a complimentary electronic copy (for most vehicles from 1995 to present).

2. To receive a paper copy (for a fee) you may contact Helm, Inc. Manuals are available from the late 1960s or early 1970s for most GM vehicles. You can reach Helm Publications Ordering at 1-800-551-4123.

QUESTION: How do I know if my vehicle has been included in a recall?

ANSWER: Should a recall on your vehicle ever occur, GMC will notify you by mail. You can also contact any GMC Dealer or visit the GMC Owner Center, or you may call 1-800-462-8782.

QUESTION: What type of oil should I use in my GMC vehicle?

ANSWER: You can find this answer by looking in your Owner's Manual under "Oil, Engine." If you do not have a manual, and you currently own a GMC, please visit the GMC Owner Center to download a complimentary electronic copy (for most vehicles from 1995 to present).


QUESTION: Where can I purchase officially-licensed GMC merchandise?

ANSWER: To order a catalog or actual merchandise, please visit GMC Accessories.

QUESTION: Can I buy parts online?

ANSWER: Currently, GMC parts can only be purchased through your local GMC Dealer. However, some GMC retail websites do allow for the purchase of parts from their facilities via their websites. Therefore, please review your local GMC Dealer's websites for this information.


QUESTION: What makes an airbag inflate?

ANSWER: In a frontal or near-frontal impact of sufficient severity, the air bag sensing system detects that the vehicle is suddenly stopping as a result of a crash. The sensing system triggers a release of inflation gas. This gas inflates the air bag. The inflator, air bag, and related hardware are all part of the air bag module packed inside the steering wheel for the driver air bag and in the instrument panel for the right front passenger air bag.

QUESTION: When should an air bag inflate?

ANSWER: The air bag is designed to inflate in moderate to severe frontal or near-frontal crashes. The air bag will inflate only if the impact speed is above the system's designed "threshold level." If your vehicle goes straight into a wall that doesn't move or deform, the threshold level is about 14 to 18 mph (23 to 29 km/h). The threshold level can vary, however, with specific vehicle design, so that it can be somewhat above or below this range. If your vehicle strikes something that will move or deform, such as a parked car, the threshold level will be higher. Inflation is determined by the angle of the impact and the vehicle's deceleration.

QUESTION: Will a side or rear impact or rollover cause the air bag to deploy?

ANSWER: If the vehicle is equipped with seat mounted side impact or roof rail mounted head curtain air bags, those will deploy in a side impact. If the vehicle is equipped with a roll over capable head curtain air bags, a roll over sensor will deploy the head curtain air bags in a roll over incident. The frontal air bags will not deploy in a side impact or roll over, unless there is also a front or front-corner impact of sufficient severity to trigger the frontal airbags. The airbags will not deploy in a rear impact.

QUESTION: Is it still necessary to wear a safety belt with the Supplemental Inflatable Restraint system?

ANSWER: Yes! The air bag supplements the protection provided by the shoulder belts. Remember, the air bag is designed to inflate in moderate-to-severe frontal and near-frontal crashes. Safety belts can provide protection in impacts other than frontal and near-frontal collisions.

QUESTION: Where can I find information about air bags/supplemental inflatable restraints on GMC vehicles?

ANSWER: To learn about the specific items on your vehicle, please refer to Section 1 in your GMC Owner's Manual, "Seats and Restraint Systems." For general information please visit the safety section on the GM website.

QUESTION: What kind of child-safety seats should I use in my GMC vehicle?

ANSWER: There are no specific child restraints that GMC recommends or endorses, but we do have some information that might be helpful to you.

GMC's seats and safety belt systems are designed to accommodate child restraints. However, we cannot be certain that all child restraints will be compatible with GMC vehicles. Our cars conform to SAE (Society of Automotive Engineers) J1819 standard, which is a recommended guideline for automotive safety belt and child restraint compatibility. Therefore, child restraints that conform to this standard will be more compatible with the seats and safety belt systems used in GMC vehicles. Also, your GMC Dealer can install a tether anchor kit (at no charge to you) that will anchor front-facing child seats.

First, we recommend you work with a child-safety seat manufacturer, or a local retail outlet that sells child restraint seats, for possible suggestions on what type of seat would be most appropriate for your needs. You could also take your child restraint to a checkup event or contact a local CPS technician for additional assistance. There are a couple of websites that have some good information on this topic.

Try these:


National Safe Kids

Safety Beltsafe USA

American Academy of Pediatrics

In addition, you might want to try checking with your local hospital, police department and fire department for any information they might have.

How do you turn off the daytime running lights when parked?

Simply depress the parking brake.


QUESTION: What is Roadside Assistance?

ANSWER: GMC has a Roadside Assistance program to aid owners during an emergency and with other services. It is a service3 that comes with each new GMC car, pickup and SUV. Services provided include:

24-hour, 7-days-a-week toll-free 800 phone assistance

Towing to the closest GMC dealer (from a legal roadway)

Flat tire change (using vehicle's spare)

QUESTION: How do I contact Roadside Assistance?

ANSWER: If your GMC vehicle is equipped with an active OnStar subscription, the customer can simply press the blue button for roadside service. If it is not equipped, please call 1-800-677-4927 to initiate roadside assistance for your vehicle.

QUESTION: How long is my vehicle covered by Roadside Assistance?

ANSWER: Roadside Assistance is also included for 100,000 miles/5 years (whichever comes first) on all 2007 and 2008 GMC passenger cars and light-duty trucks. For model years prior to 2007, your vehicle is provided Roadside Assistance for the term that matches its bumper-to-bumper warranty. Please refer to the Owner's Manual for the specific warranty on your vehicle.

QUESTION: Are there any costs to me for using Roadside Assistance?

ANSWER: There is generally no charge for any of the services listed while the vehicle is covered by the complimentary Roadside Assistance service. However, additional charges may be incurred for some services, including towing the vehicle beyond the closest GMC dealer; for non-warranty parts and labor; or for lost key replacements. For details and additional information, please refer to Section 7 of the Owner's Manual.


Q: Where can I find more information about how the GMC Owner Center works and the features that are available?

A: We have a site overview that gives a quick look at everything you can do to manage your vehicle. Click here to take the tour.

Q: Can I log in using my OnStar Username and Password?

A: Yes. When you log in with your OnStar credentials, your personal information and vehicle information will be shared with the GMC Owner Center. If you have more than one vehicle with OnStar, you will be asked which vehicle(s) you would like to link to your GMC Owner Center account.

Q: What happens if I end my OnStar Account? Can I still log in using my OnStar username and password?

A: Yes. Your username and password will still allow you access to the GMC Owner Center, even if your OnStar subscription ends.

Q: I input my name and address, but my Vehicle is not showing up. Why?

A: If you purchased your vehicle through a private sale, your vehicle ownership information may not be updated in our system. You can register this vehicle by inputting your vehicle’s Vehicle Identification Number (VIN) into the GMC Owner Center. If you purchased a new or used vehicle from a dealer, it may be a few weeks before your vehicle information is updated in our system.

Q: Why are some of the vehicles appearing not mine? Should I click Not My Vehicle?

A: Occasionally, a vehicle may still be registered to a prior owner or mistakenly appear when you are registering your vehicle. You can select those vehicles from the list that you don’t currently own or have never owned and remove them by clicking on the Not My Vehicle link next to each vehicle, and selecting the reason. Once you do this, the information will be sent to correct the vehicles in the system, but please note there may be up to a two-week delay to reflect this information.

Q: What do I do when the system does not recognize my VIN?

A: There are several reasons that we may not recognize your VIN. If your vehicle is a new purchase, it may take up to 45 days for the VIN to be input into our systems. Or, perhaps the VIN was entered incorrectly. Please follow the instructions below. If you’d like to save these instructions for future use, you can download the PDF version.


Step 1:
Check to make sure you entered the correct VIN number by clicking on the Edit Vehicle Information button below.


Step 2:
If your VIN was entered correctly, it means that our system has not processed your vehicle purchase yet. You will still be able to access a wide variety of GMC Owner Center information if you re-register by Year, Make and Model. Just do the following:


1. On the Edit Vehicle Information page, remove the vehicle you just registered


2. Click Add Vehicle. You will re-enter the vehicle registration process. Then, register by Year, Make, and Model from the bottom of the page and click “Save.”


3. Return to the edit vehicle information page and enter your VIN, then click Save and Finish. Once your vehicle is in our system, usually 45 days after purchase, information specific to your vehicle will be displayed.


If you made a typing error and your VIN is incorrect, you can re-register the vehicle with the correct VIN. Just do the following:


1. On the Edit Vehicle Information page, remove the vehicle you just registered


2. Click Add Vehicle. You will re-enter the vehicle registration process and may enter the correct VIN.


If your VIN is still not recognized, you can start a Live Chat with our experts or call 1-866-694-6546 for assistance.


If you own a vehicle that was not purchased in the United States, unfortunately we can’t recognize your vehicle at this time. Please visit your vehicle brand site for more information.

Q: How do I change my password?

A: Users can change their password at any time by going to the Manage Profile link in the upper right corner of the homepage and updating their Personal/Contact information section and clicking on the change password link.

Q: I have OnStar but I do not have a username/password. What should I do?

A: You can take one of two actions:

  • You can create a GMC Owner Center account here, then add your OnStar account information to your profile. You will then be able to see your OnStar Vehicle Diagnostics information and other select OnStar details in your GMC Owner Center account.
  • You can visit and set up an online account. Use that username and password to create a GMC Owner Center account. This will allow you to log in to both the GMC Owner Center and with the same username/password.
Q: How can I access my vehicle information if the GMC Owner Center website is not working?

A: Call 1.866.694.6546 and we will be happy to assist you. Hours of operation: Monday through Saturday 8am-9pm EST.

Q: I cannot access my GMC Owner Center account. Do I need to update my operating system or browser?

A: The site will work on Windows XP, Windows 7 and Mac OS 10 operating systems. One of the following browsers is required, either the most recent version or the version prior to that:

  • Firefox
  • Safari
  • Google Chrome
  • Opera
  • Internet Explorer
Q: My preferred dealership no longer appears, what happened?

A: If your preferred dealer is not displaying properly, our system might be down temporarily. Please reload the page and try again. Occasionally, dealerships may close or choose not to participate in system updates. When this happens, your selected preferred dealer will disappear. Please choose a new preferred dealer through the Preferred Dealer tool on your GMC Owner Center homepage.

Q: How is my preferred dealer chosen?

A: Your preferred dealer is either the dealer who sold you the vehicle or your selected OnStar preferred dealer. You can change your preferred dealer in the Preferred Dealer tool on the homepage.

Q: Why can’t I see my service history records?

A: You may not see service history records if your dealer does not participate in service history data sharing or if your service was performed within the past 2 weeks. If you’ve had your vehicle serviced at multiple dealerships, you may only be able to see some of your records, depending on dealer participation.

Q: I entered my service records into, why should I use the GMC Owner Center?

A: Along with displaying your personally entered OnStar service records, the GMC Owner Center also allows you to see dealer service history. The GMC Owner Center is also a convenient way to consolidate all of your account information, get valuable information on your vehicle, and view recalls, all in one place. You can even sign in using your OnStar credentials.

Q: If I update my records in my new GMC Owner Center account, will they show up in my account (and vice versa)?

A: If you enter your service records in your account they will show up in your new GMC Owner Center account but if you enter them in your new GMC Owner Center account they will not appear in your OnStar account at this time.

Q: What is OnStar Vehicle Diagnostics and how do I enroll?

A: If you subscribe to this service, about every 30 days, OnStar Vehicle Diagnostics will check your vehicle's key systems—including engine, air bags, and antilock brakes—while you drive. The system also provides important maintenance information details regarding your vehicle's needs for oil life and tire pressure.* It summarizes all this information in an easy-to-read e-mail so you can stay updated on the condition of your vehicle and have greater peace of mind. To enroll for this service available at no extra charge — go to

Q: Why doesn't the GM Card information match the information on my current statement or the GM Card Website?

A: There is a slight time lag between when transactions occur on the GM Card website and when they are reflected on your GMC Owner Center account. It may take up to five days for the information to match.

Q: Why is my OnStar Vehicle Diagnostics information out-of-date?

A: We pull data for your vehicle's OnStar Vehicle Diagnostics summary monthly. All information on your account should reflect what is included in your most recent OnStar Vehicle Diagnostics e-mail.

Q: Why is my most recent OnStar renewal not reflected on my account?

A: Most likely, you have just renewed your subscription. There is a slight time lag between when transactions occur on and when they are reflected on your GMC Owner Center account. It may take up to 30 days for the information to match.

Q: Why am I unable to view my SiriusXM account information if I don’t have OnStar?

A: Currently, our systems are only able to access SiriusXM account information for those users who are OnStar subscribers. Check back soon for system updates that will allow you to see your subscription information without having to have an active OnStar account.

Q: Why is my SiriusXM account information out of date?

A: There may be a slight time delay between when SiriusXM account updates occur and when they are reflected on your GMC Owner Center account. You can always get your account status by logging in to the "Manage Account" section of

Q: How will I know when a recall is closed?

A: It can take up to two weeks for the GMC Owner Center to reflect that the dealer has addressed your recall. Once the GMC Owner Center has been notified, the recall link will no longer appear in the homepage Recall tool for your vehicle.


QUESTION: What is the GM Mobility Program?

ANSWER: General Motors is committed to helping persons with disabilities equip their vehicles for easier travel. To learn about the GM Mobility program please visit or contact GM Mobility Assistance Center at 1-800-323-9935.

QUESTION: Is GMC part of General Motors?

ANSWER: GMC is a division of General Motors.

QUESTION: I would like GMC to grant me permission to use an image from the site and let me link from my site to GMC. What should I do?

ANSWER: Unfortunately, GMC cannot allow images from the GMC site to be posted on other sites. Feel free to link your site to the GMC site.


QUESTION: I (we) would like to request a monetary or vehicle donation from General Motors or one of its divisions. What do I (we) do?

ANSWER: General Motors and the GM Foundation support a variety of activities in the communities where we do business. For guidelines that apply to proposals to either GM or the GM Foundation for grants, event participation, or vehicle donation requests please visit