Familiarizing yourself with the Buick warranty included with all new and certified pre-owned Buicks may help you avoid thousands of dollars in repair costs. With the Buick warranty, the manufacturer foots the bill for a wide range of components that break down due to defects in materials or workmanship.

This article will detail what is covered under the Buick warranty, how long that coverage lasts, how to find out if your Buick is still covered, and how to get the best extended auto warranty protection after your factory warranty expires.

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Buick Warranty Highlights

Buick recently changed the coverage lengths for its warranties. Here’s how long the Buick warranty lasts for both newer and older vehicles:

Buick Warranty Term Length
for 2020-2021 Vehicles
Term Length
for 2018- 2019 Vehicles
Bumper-to-Bumper
Limited Warranty
3 years/36,000 miles 4 years/50,000 miles
Powertrain
Limited Warranty
5 years/60,000 miles 6 years/70,000 miles
Corrosion Coverage 3 years/36,000 miles 4 years/50,000 miles
Rust-Through Coverage 6 years/100,000 miles 6 years/unlimited miles
Complimentary Maintenance 1 year/unlimited miles None
All new Buicks are protected by the following Buick warranty coverage:
  • Bumper-to-Bumper Limited Warranty: Pays for parts and labor to repair most electrical and mechanical vehicle components, excluding the exterior trim, upholstery, wear-and-tear items, and more
  • Powertrain Limited Warranty: Covers repairs to powertrain components such as the engine, transmission, transaxle, and transfer case
  • Corrosion Coverage: Pays to replace exterior sheet metal components if they corrode
  • Rust-Through Coverage: Covers sheet metal that rusts through, creating a hole in the panel
  • Complimentary Maintenance: Covers your first oil change, tire rotation, and a multi-point inspection

The Buick warranty also includes roadside assistance and courtesy transportation for the duration of your powertrain coverage. All Buick warranties are fully transferable and have no deductible.

The Buick warranty provides only a basic level of protection. While many components are covered by the bumper-to-bumper warranty, the coverage term lengths are fairly short, especially compared to some of the best new car warranties.

Certified Pre-Owned Buick Warranty

The Buick warranty for certified pre-owned (CPO) vehicles extends the car’s original Bumper-to-Bumper Limited Warranty by 1 year/12,000 miles and stretches the Powertrain Limited Warranty to last 6 years/100,000 miles.

Perks included with the CPO Buick warranty include:

  • Roadside assistance
  • Courtesy transportation
  • Two years of complimentary scheduled maintenance

How to Find Out If Your Buick is Still Under Warranty

Buicks less than four years old are likely still covered by their factory Buick warranties. However, if you’ve driven a high number of miles, your warranty may already be expired. Check your car’s odometer and owner’s manual to see if you’re still covered under the Buick warranty.

You can also call a dealership to see if your Buick warranty coverage is still valid. Be prepared to provide your Buick vehicle identification number (VIN) so the dealer can look up your coverage.

Should You Get Extended Warranty Coverage?

Customers considering extended warranty coverage should first try to estimate the cost of Buick repairs. Especially reliable vehicles that do not typically cost much to maintain may not need extended warranty coverage.

To research vehicle reliability, our team turns to RepairPal. RepairPal rates vehicles for reliability by considering average annual repair costs, the frequency of unscheduled repairs, and the probability of a needed repair being severe. RepairPal defines a “severe” repair as costing more than three times the average annual repair cost for all models ($1,956).

Buick has a RepairPal reliability rating of 3.5 out of 5.0 and ranks 13th out of 32 brands overall. A further breakdown of RepairPal’s Buick reliability score is provided in the chart below.

Buick Rating Average Rating
Average Annual Repair Cost $608 $652
Frequency of Unscheduled Repairs 0.3 times per year 0.4 times per year
Probability of a Needed Repair Being Severe 13 percent 12 percent

Buicks have a low frequency of unscheduled repairs and a relatively low average annual repair cost. Be sure to research the particular model of your Buick for more exact estimates, as costs can vary widely. For example, the Buick Encore has an average annual repair cost of $466, while the Buick Enclave has an average annual repair cost of $720.

The following chart shows some common Buick repairs and estimated costs, according to RepairPal. Consider if you would be willing to pay for such costs out of pocket when weighing the potential benefits of an extended warranty.

Common Buick Repair Estimated Repair Cost
Fuel pump replacement $388 to $474
Mass airflow sensor replacement $264 to $391
Intake manifold gasket replacement $286 to $357
Heater core replacement $1,230 to $1,540

Most of the repairs listed above are covered under warranty, but it may still be cheaper in the long run to save for the cost of repairs for yourself. However, if your vehicle suffers a major breakdown, you could be responsible for repair costs well exceeding $1,000, which is when an extended warranty could be of great help. An extended warranty can provide peace of mind that you will not be on the hook for especially costly (however unlikely) repairs.

Buick Extended Warranty Overview

When you purchase a new Buick, you will have the option to also buy an extended warranty. This warranty increases the coverage term for the Buick Bumper-to-Bumper Limited Warranty. Model year 2020 and newer Buicks can have their warranties extended to 5 years/60,000 miles, and older Buicks are eligible for extended coverage up to 6 years/70,000 miles.

These warranties must be purchased from the Buick dealership and include a rental car reimbursement and roadside assistance.

Buick also has two vehicle service contracts available for purchase after your original Buick warranty expires. You can read more about these plans in our Buick extended warranty review.

Benefits of a Third-Party Buick Warranty

Customers interested in greater extended warranty coverage options should look into a third-party Buick warranty. Third-party warranties can be purchased at any time and often offer a wider range of plans and coverage lengths than manufacturer warranties.

Other benefits to third-party extended warranties are that they are typically less expensive than manufacturer warranties and allow customers to take their vehicles to any certified repair facility instead of exclusively having to visit the dealership.

Our review team has looked into the best extended car warranty providers. We’ve ranked and rated providers based on coverage options, costs, customer reviews, and industry reputation. You can compare free, personalized quotes from our top-rated providers—Endurance, CARCHEX, and CarShield—by clicking below.

Best Extended Warranty Companies
AutoGuide reviewed the top car warranty companies to find the best.
Below are our top 3 picks.
Best Coverage Best Service Best Value
Endurance CARCHEX CarShield
★★★★★ ★★★★★ ★★★★1/2
Get Quote Get Quote Get Quote
(877) 374-1840 (866) 254-0205 (800) 563-2761

Q & A

Here are some frequently asked questions about the Buick warranty.
Is my Buick still under warranty?
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If your Buick is less than four model years old, it is probably still under warranty. To be certain, check your odometer and your owner’s manual or call a Buick dealership to ask. If you call a dealership, be sure to have your VIN handy.
What is covered under the Buick powertrain warranty?
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The Buick Powertrain Limited Warranty covers the engine, transmission, transfer case, and drive systems. This includes all related internally lubricated parts.
Is the Buick warranty transferable?
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The Buick warranty is transferable to secondary owners.
How much is a Buick extended warranty?
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The final cost of a Buick extended warranty will vary from dealership to dealership. Online customer reports indicate that a Buick extended warranty is likely to cost between $3,000 and $4,000.