Buick Customer Service, Roadside Assistance and Reviews

If you need help with a Buick vehicle, dealership, warranty repair, recall, roadside emergency, OnStar plan, myBuick account, new-vehicle order, parts purchase, financing account, or unresolved complaint, begin with the support route connected to the problem. Dealership sales and service concerns should normally start with dealership management, while Buick Customer Assistance can review unresolved vehicle and dealer complaints.

Buick Customer Service Phone Number

The Buick Customer Assistance phone number is 1-800-521-7300. Buick currently lists telephone availability Monday through Saturday from 8 AM to 9 PM Eastern Time. The call center is closed on Sunday.

Buick Customer Assistance handles general questions involving:

• Buick vehicles and features
• Dealership sales or service concerns
• Warranty questions
• Unresolved repair problems
• New-vehicle order status
• myBuick and GM accounts
• Recall questions
• General feedback and complaints

Buick also offers chat through its contact page. Customers can submit an online support request, and Buick states that an advisor will normally respond within one business day. The company does not prominently publish one general customer-service email address, so use the official request form rather than an unverified email address.

For hearing or speech assistance, Buick directs customers to dial 711 for Telecommunications Relay Service.

Choose the Correct Buick Support Route

• Dealership sales complaint: Contact the salesperson, sales manager, general manager, and then Buick Customer Assistance if the matter remains unresolved.
• Repair or service complaint: Speak with the service advisor and service manager before opening a Buick Customer Assistance case.
• Factory warranty concern: Schedule diagnosis at an authorized Buick dealership and retain every repair order.
• Roadside emergency: Call 1-800-252-1112 or use an eligible OnStar or myBuick option.
• Recall: Check the VIN and schedule the remedy through a Buick dealer.
• OnStar, Wi-Fi, or connected-services concern: Press the blue OnStar button or call 1-888-466-7827.
• New-vehicle order: Contact the selling dealer or Buick Customer Assistance with the six-character order number or VIN.
• Parts or accessories order: Contact the participating seller that fulfilled the order or Buick shopping support.
• Loan or lease account: Contact the lender or leasing company shown on the contract and statement.
• Crash or possible safety defect: Notify Buick and report the concern to the National Highway Traffic Safety Administration when appropriate.

What to Have Ready When Contacting Buick

Prepare the information connected to the complaint:

• Vehicle year, model, and mileage
• Vehicle identification number
• Owner’s name and contact information
• Dealership name and location
• Purchase, lease, or repair date
• Repair-order and invoice numbers
• Dates and mileage for each repair visit
• Warning messages, diagnostic information, photographs, or video
• Warranty or protection-plan documents
• Existing Buick case number
• The specific resolution being requested

Provide the VIN through Buick’s private support channel, dealership, or government recall system. Do not place the complete VIN in a public CSN review.

Buick Dealership Complaints

Buick dealerships are generally independently owned and operated. A dealership’s sales, trade-in, financing, repair, scheduling, transportation, and employee decisions should normally be addressed with that dealership first.

For a sales complaint:

1. Review the buyer’s order, advertised offer, trade-in documents, financing agreement, and optional-product disclosures.
2. Contact the salesperson and sales manager.
3. Ask the general manager to review an unresolved concern.
4. Request all proposed corrections or promises in writing.
5. Open a case with Buick Customer Assistance if the issue involves Buick or remains unresolved.

For a service complaint:

1. Explain the symptom to the service advisor and request that the repair order accurately describe it.
2. Retain the initial estimate, authorization, invoice, and diagnostic results.
3. Ask the service manager to review repeat repairs, unexpected charges, damage, or an unresolved symptom.
4. Record the vehicle’s mileage when it enters and leaves the dealership.
5. Contact Buick Customer Assistance with every repair-order number.

Buick’s Certified Service guidance states that owners should begin with the dealer’s sales or service department for concerns involving a transaction or vehicle operation.

Buick Warranty and Repair Help

A Buick warranty decision depends on the vehicle’s model year, mileage, in-service date, maintenance history, diagnosis, modified components, cause of failure, and specific warranty booklet.

Buick’s current warranty information generally identifies a three-year or 36,000-mile bumper-to-bumper limited warranty for new vehicles, whichever comes first. Other coverages can have different time and mileage limits. Always check the warranty booklet and GM Account information for the specific VIN.

Buick states that warranty repairs must be performed at an authorized Buick dealership. A warranty does not automatically cover maintenance, collision damage, misuse, environmental damage, normal wear, or every failed component.

If a dealership denies warranty coverage:

1. Ask for the diagnosis and denial reason in writing.
2. Request the warranty provision used for the decision.
3. Keep maintenance and repair records.
4. Ask the service manager to review the decision.
5. Open a case with Buick Customer Assistance.
6. Save the Buick case number and promised response date.

Buick says alternate transportation or reimbursement of certain transportation expenses may be available for qualifying warranty repairs. A loaner vehicle may be one option, but availability is not guaranteed. Confirm the applicable Courtesy Transportation terms with the dealership before arranging transportation.

Review current coverage through the Buick warranty and protection information.

Buick Protection Plan Claims

A Buick Protection Plan, Advanced Protection Plan, prepaid-maintenance agreement, GAP waiver, or tire-and-wheel contract is different from the factory limited warranty.

The current Buick Protection Plan claims number is 1-833-959-0104. Buick lists Claims Team hours Monday through Friday from 7 AM to 10 PM Eastern Time and Saturday from 8 AM to 7 PM Eastern Time.

Buick advises customers to obtain claim approval before repairs are performed. Failure to obtain required authorization can affect claim approval.

Have the customer agreement, VIN, current mileage, diagnosis, repair estimate, selling dealer, and repair-facility information ready. Review the exact contract rather than assuming every repair, tow, rental vehicle, tire, wheel, or maintenance item is covered.

See the official Buick Protection Plan claim instructions.

Buick Roadside Assistance

Buick Roadside Assistance can be reached at 1-800-252-1112. Advisors are available 24 hours a day, 365 days a year.

Available services may include:

• Towing to the nearest Buick dealer from a legal roadway
• Flat-tire assistance using the vehicle’s spare tire
• Battery jump-start
• Vehicle unlock service
• Emergency fuel delivery

Costs and eligibility depend on the vehicle, model year, warranty status, OnStar plan, location, and circumstances. A replacement key and the labor required to make it are not included in vehicle-unlock service.

Buick states that Roadside Assistance is included for five years or 60,000 miles, whichever comes first, on 2020 or newer Buick passenger vehicles. Verify coverage for the specific vehicle through the dealer, Owner’s Manual, or GM Account.

Eligible drivers may also request assistance through:

• The myBuick mobile app
• The vehicle’s infotainment system
• The blue OnStar button
• The OnStar Guardian app when included with the applicable plan

Buick Recalls and Safety Complaints

Use the following resources to check for open safety recalls:

• GM and Buick Recall Lookup
• NHTSA Recall Lookup

Enter the 17-character VIN to check the individual vehicle. A year, make, and model search can show general recalls but does not confirm whether a particular vehicle is included.

Federal safety-recall remedies are provided without charge. Contact an authorized Buick dealer to schedule the repair and follow any interim instructions, including a “do not drive” or “park outside” notice.

If a dealer says parts are unavailable:

1. Ask whether the dealership can place the vehicle on a waiting list.
2. Request an estimated parts date.
3. Contact another authorized Buick dealership.
4. Open a case with Buick Customer Assistance.
5. Save the case number and dealer communications.

A possible safety defect that is not covered by a recall can be reported to NHTSA online or by calling the Vehicle Safety Hotline at 1-888-327-4236. NHTSA currently lists hotline hours Monday through Friday from 8 AM to 8 PM Eastern Time.

A CSN review or Buick customer-service case does not replace an official NHTSA safety-defect report.

OnStar and myBuick Support

Call OnStar at 1-888-466-7827, also written as 1-888-4ONSTAR, for:

• OnStar plans and billing
• Connected-services questions
• In-vehicle Wi-Fi
• OnStar Guardian app support
• Account linking
• Emergency and safety-service questions
• Stolen Vehicle Assistance questions

Depending on the vehicle and active plan, the myBuick app may provide remote start, door locking and unlocking, vehicle status, tire-pressure information, EV charging information, service scheduling, and Roadside Assistance.

Available functions depend on the vehicle’s equipment, software, account, service plan, electrical system, cellular coverage, and GPS availability. A feature shown in advertising may not be available on every vehicle or without a qualifying plan.

Use the official Buick OnStar support page for account and feature help.

Buick New-Vehicle Order Help

Once a new-vehicle order is accepted by the selected Buick dealer, the customer should receive an email containing the order details, six-character order number, and dealer information.

Buick states that a vehicle order cannot be changed after it has been accepted into production. Customers can track an order by:

• Contacting the selling dealership
• Using chat on Buick.com
• Calling Buick Customer Assistance at 1-800-521-7300

Have the six-character order number or 17-character VIN available. Save the accepted order, deposit receipt, pricing documents, estimated delivery information, and communications about options or changes.

See Buick’s new-vehicle order tracking instructions.

Buick Parts and Accessories Order Help

Parts and accessory orders placed through Buick’s online shopping system may be fulfilled by participating third-party sellers. The selected seller generally controls the transaction, price, shipment, return, and refund.

For an incorrect, damaged, missing, or delayed parts order:

1. Identify the seller shown on the confirmation.
2. Save the order and tracking numbers.
3. Keep the shipping carton, product label, and photographs.
4. Contact the seller first.
5. Call Buick shopping support at 1-844-847-1118 if additional assistance is needed.

Use the VIN when selecting a vehicle-specific part or accessory. Ordering by model name alone may not identify differences in trim, production date, engine, drivetrain, or equipment.

Buick Financing and Lease Help

The dealership, Buick Customer Assistance, and the vehicle’s lender may be separate organizations. Check the retail installment agreement, lease agreement, billing statement, or online account to identify the company servicing the account.

Contact the lender directly about:

• Payments and due dates
• Late fees
• Payoff quotes
• Lease-end requirements
• Account access
• Title processing
• Credit reporting
• Repossession or collection notices

If the account is serviced by GM Financial, use the verified GM Financial contact page. Do not assume GM Financial services the account simply because the vehicle is a Buick.

Buick Customer Assistance generally cannot modify a lender’s payment records, waive lender fees, change credit reporting, or issue a lease payoff.

How to Escalate a Buick Complaint

1. Start with the department connected to the problem.
2. For a dealership concern, speak with the sales manager, service manager, or general manager.
3. Call Buick Customer Assistance at 1-800-521-7300.
4. Provide the VIN privately, dealership, mileage, repair orders, timeline, and requested resolution.
5. Ask Buick to create a formal case.
6. Write down the case number, representative’s name, and promised response date.
7. Ask whether a regional or higher-level review is available.
8. Follow up through the existing case rather than opening unrelated cases.
9. Use the recall, NHTSA, lender, protection-plan, or other specialized route when the complaint falls outside Buick Customer Assistance.

For a repeat repair, organize the records chronologically and show:

• Date and mileage at each visit
• Reported symptom
• Diagnosis
• Parts replaced or work performed
• Days the vehicle was unavailable
• Whether the problem returned

Warranty rights, dispute programs, and state lemon-law requirements vary. Review the warranty booklet for the specific vehicle and obtain qualified legal advice when necessary. Do not rely on a public review as legal advice or formal notice.

Buick Customer Service Reviews and Complaints

CustomerServiceNumbers.com currently displays a 0 out of 5 rating based on zero Buick reviews. There are no visible customer reviews on this listing at this time.

Because no reviews have been submitted, the page does not currently provide evidence of broader positive or negative trends involving Buick vehicles, reliability, dealerships, warranties, recalls, roadside service, OnStar, financing, or Customer Assistance.

There are also no visible Buick company responses or CustomerServiceNumbers.com responses to review.

Customers can use the review form below to submit a firsthand experience involving:

• A Buick dealership
• Vehicle purchase or trade-in
• Service or repair
• Factory warranty
• Protection-plan claim
• Recall repair
• Roadside Assistance
• OnStar or the myBuick app
• Parts or accessories
• Financing or lease servicing
• Buick Customer Assistance

A useful review should identify the vehicle model and model year, dealership or support route, approximate date, issue reported, response received, and whether the matter was resolved.

Do not publish the complete VIN, license-plate number, driver’s-license number, financing-account number, insurance information, precise vehicle location, home address, telephone number, medical records, or payment details.

Buick Corporate Office

Buick is a General Motors vehicle brand and does not operate a separately published global headquarters with its own consumer switchboard.

General Motors moved its global headquarters from the Renaissance Center to Hudson’s Detroit in January 2026:

• Parent Company: General Motors Company
• Global Headquarters: Hudson’s Detroit, 1240 Woodward Avenue, Detroit, MI 48226
• Primary Buick Consumer Number: 1-800-521-7300

The former Buick address at 300 Renaissance Center should not be presented as the brand’s current corporate location.

Customer complaints should normally go through dealership management and Buick Customer Assistance before a corporate-office escalation. Corporate headquarters cannot dispatch roadside service, diagnose a vehicle remotely, approve a dealership repair, access an OnStar account, or modify a financing account.

For additional headquarters, complaint, leadership, and escalation information, see the verified Buick Corporate Office Headquarters listing.

Related Automobile Customer Service Guides

• General Motors Customer Service
• Cadillac Customer Service
• GMC Customer Service
• Lexus Customer Service
• Acura Customer Service

Frequently Asked Questions

What is the Buick customer service phone number?

The Buick Customer Assistance number is 1-800-521-7300.

What are Buick Customer Assistance hours?

Buick currently lists telephone hours Monday through Saturday from 8 AM to 9 PM Eastern Time. The call center is closed on Sunday.

Does Buick offer online customer support?

Yes. Buick provides chat and an online support-request form. Buick states that an advisor will normally respond to a submitted request within one business day.

Does Buick publish a general customer-service email address?

Buick does not prominently publish one general consumer-support email address. Use its official contact page, chat, or support-request form.

What is the Buick Roadside Assistance number?

Call Buick Roadside Assistance at 1-800-252-1112. Advisors are available 24 hours a day.

What is the OnStar customer-service number?

Call OnStar at 1-888-466-7827, also written as 1-888-4ONSTAR.

How do I complain about a Buick dealership?

Start with the sales manager, service manager, or dealership general manager. If the matter remains unresolved, call Buick Customer Assistance, request a case number, and provide the supporting sales or repair documents.

Does any GM dealership perform Buick warranty repairs?

Buick states that warranty repairs must be performed at an authorized Buick dealership. Use the official dealer locator to find an appropriate service department.

Is a Buick loaner vehicle guaranteed during warranty service?

No. Alternate transportation or reimbursement may be available for qualifying warranty repairs, and a loaner may be one option, but availability is not guaranteed. Confirm the applicable terms with the dealership.

How do I check a Buick for recalls?

Enter the VIN through the GM Owner Center recall page or NHTSA’s recall lookup. Contact an authorized Buick dealer to schedule a free safety-recall repair.

How do I report a possible Buick safety defect?

Notify the Buick dealer and Customer Assistance. A possible safety defect can also be reported to NHTSA online or at 1-888-327-4236.

How do I track a new Buick vehicle order?

Contact the selling dealership, use Buick.com chat, or call 1-800-521-7300 with the six-character order number or VIN.

Where is Buick headquarters?

Buick is a General Motors brand. GM’s global headquarters is at Hudson’s Detroit, 1240 Woodward Avenue, Detroit, MI 48226.

Is CustomerServiceNumbers.com affiliated with Buick?

No. CustomerServiceNumbers.com is an independent customer service information and review website. It cannot access Buick vehicles, repair orders, warranty decisions, recall records, GM Accounts, OnStar plans, financing accounts, or Customer Assistance cases.

Customer Service Numbers Disclaimer

CustomerServiceNumbers.com provides contact information, complaint guidance, and a rating and comment section where consumers can submit reviews based on their own experiences.

Note: This website listing is not associated with Buick, General Motors Company, General Motors LLC, GM Financial, OnStar, or any Buick dealership. Buick does not provide customer support through this website. Contact Buick, the dealership, OnStar, GM Financial, the protection-plan administrator, or the appropriate government agency directly for assistance.