GM Certified vehicles carry a specific warranty and inspection standard set by General Motors, but the coverage is narrower than many buyers assume

A GM Certified Pre-Owned (CPO) vehicle is a used car, truck, or SUV that General Motors has inspected, reconditioned where needed, and backed with an extended warranty. The certification is not a government rating — it is General Motors' own quality promise. The vehicle must pass a 172-point inspection, be no more than six model years old, and have fewer than 80,000 miles on the odometer. If it fails any part of the inspection, GM does not certify it.

The main benefit is the warranty. A GM Certified vehicle comes with a bumper-to-bumper warranty that covers most mechanical and electrical systems for three years or 36,000 miles from the purchase date, whichever comes first. After that, the powertrain warranty (engine, transmission, drivetrain) extends to five years or 60,000 miles. This is longer than most used-car warranties, but it is not lifetime coverage, and it does not cover wear items like brakes, tires, or wiper blades.

GM Certified does not mean the vehicle is perfect or that it has never been in an accident. It means the vehicle passed GM's inspection at that moment. A car can be certified, then develop a problem the day after you drive it off the lot — and the warranty would cover it. But if a problem existed before certification and was not caught, you still own it.

Key Takeaways

  • GM Certified Pre-Owned vehicles must pass a 172-point inspection and be no more than six model years old with fewer than 80,000 miles to carry the certification badge.
  • The warranty covers bumper-to-bumper repairs for three years or 36,000 miles, then powertrain coverage extends to five years or 60,000 miles from the purchase date.
  • Certification does not mean the vehicle has never been damaged, flooded, or in an accident — it means it passed inspection on the day it was certified.
  • You should still obtain a vehicle history report and have an independent mechanic inspect any used car before purchase, even if it is GM Certified.

The 172-Point Inspection and What It Actually Checks

General Motors publishes the 172-point checklist, and it covers major systems: engine, transmission, suspension, brakes, electrical, air conditioning, and safety features. The inspection includes a road test and a check for fluid leaks, corrosion, and proper operation of lights, wipers, and windows. A dealer technician performs the inspection, not an independent third party.

The checklist is thorough for a dealer inspection, but it is not a forensic examination. It does not include a full frame inspection with a lift, a detailed interior stain or odor assessment, or a deep dive into the vehicle's accident history. If a vehicle was in a minor fender-bender and repaired well, the inspection may not detect it. If the interior has pet odor or stains, those are not grounds for failing certification — they are cosmetic issues.

Any vehicle that fails the inspection does not receive the GM Certified badge. The dealer can sell it as a regular used vehicle, but it cannot be marketed as certified. This is the main quality control: if it does not pass, it does not get the label.

Warranty Coverage: What Is Included and What Is Not

The GM Certified warranty is split into two parts. The bumper-to-bumper coverage lasts three years or 36,000 miles and covers nearly all mechanical and electrical components — engine, transmission, air conditioning, power windows, dashboard electronics, and most other systems. The powertrain warranty runs five years or 60,000 miles and covers the engine, transmission, and drivetrain only.

What the warranty does not cover: routine maintenance (oil changes, filter replacements), wear items (brake pads, rotors, tires, wiper blades, spark plugs), glass, body panels, paint, interior trim, and damage from accidents, neglect, or misuse. If you need new brake pads at 40,000 miles, you pay for them. If the transmission fails at 50,000 miles, the warranty covers it.

The warranty is transferable to a second owner if you sell the vehicle, but the coverage shrinks: the second owner gets three years or 36,000 miles of powertrain coverage only, not the full bumper-to-bumper. This matters if you plan to resell the car — the warranty value drops when ownership changes.

How GM Certified Differs From Other Used-Car Programs

Most major automakers run their own certified programs with similar structures. Ford Certified Pre-Owned, Toyota Certified Used, and Honda Certified Pre-Owned all use multi-point inspections and extended warranties. The differences are in the details: age limits, mileage caps, warranty length, and what the inspection covers.

Independent used-car dealers and third-party certification programs (like CarMax's MaxCare warranty) operate differently. They may not have the same inspection standard, and their warranties are often shorter or more limited. A vehicle certified by the manufacturer carries more weight than a dealer's own certification because the manufacturer has a brand reputation to protect.

The trade-off is price. A GM Certified vehicle typically costs more than an identical non-certified used car because of the warranty and inspection. How much more depends on the model, age, and local market — sometimes a few hundred dollars, sometimes several thousand. Whether that premium is worth it depends on how long you plan to keep the car and how much risk you want to take on repairs.

What You Should Do Before Buying a GM Certified Vehicle

Certification is a good starting point, but it is not a substitute for your own due diligence. Before you buy, obtain a vehicle history report from Carfax or AutoCheck. These reports show accident history, title status, service records, and whether the vehicle was ever reported as flooded or salvaged. A clean history report and a GM Certified badge together give you much more confidence than either one alone.

Have an independent mechanic inspect the vehicle before you purchase it. This costs $100 to $200 and takes an hour, but it can catch problems the dealer's inspection missed or problems that developed after certification. A mechanic can also tell you whether the vehicle has been well-maintained and whether any repairs were done properly.

Review the specific warranty document before you sign. The dealer should give you a copy of the warranty terms, including what is covered, what is not, and how to file a claim. Ask the dealer which GM dealerships will honor the warranty if you move or prefer a different location — most will, but it is worth confirming.

How to File a Warranty Claim on a GM Certified Vehicle

If a covered component fails while you are under warranty, take the vehicle to any GM dealership. You do not have to return to the dealership where you bought it. Bring your purchase paperwork and the warranty document. The dealership will diagnose the problem and, if it is covered, perform the repair at no cost to you.

Some repairs may require pre-approval from GM, especially if they are expensive or if the dealership questions whether the failure is covered. The dealership handles this — you do not need to call GM directly. The process usually takes a few days, and you may be offered a loaner vehicle while yours is being repaired.

If a dealership denies a warranty claim, you can contact General Motors directly to appeal. Keep all documentation: the original purchase agreement, the warranty document, the repair estimate, and any correspondence with the dealership. GM has a formal dispute process, though it is not always quick.

Frequently Asked Questions

Can a vehicle with accident history be GM Certified?

Yes. If the vehicle was repaired properly and passes the 172-point inspection, it can be certified even if it was in an accident. The certification badge does not mean the vehicle has never been damaged. This is why a vehicle history report is important — it tells you what happened, and you can decide whether the repair was done well.

What happens to the warranty if I sell the car?

The warranty transfers to the next owner, but the coverage shrinks. The second owner gets three years or 36,000 miles of powertrain coverage only, not the full bumper-to-bumper. After the second owner, the warranty ends. This is why a certified vehicle loses some resale value over time.

Does GM Certified mean the vehicle is under recall?

No. Recalls are separate from certification. A vehicle can be certified and still have open recalls. When you buy a GM Certified vehicle, ask the dealer whether any recalls are outstanding and whether they will be completed before you take delivery. GM dealerships can perform recalls for free.

Is the GM Certified warranty the same at every dealership?

Yes. The warranty terms are set by General Motors, not by individual dealerships. However, dealerships may offer additional warranties or service packages on top of the GM Certified warranty. Read any add-on offers carefully before you agree to them.

What if the dealer says a repair is not covered by the warranty?

Ask the dealer to explain which part of the warranty document excludes the repair. If you disagree, ask for the explanation in writing and contact General Motors directly. Keep all documentation of the problem, the repair estimate, and the dealer's denial. GM's customer service can review the claim and may override the dealer's decision.