A powertrain is defined by most manufacturers to be the engine and power transfer equipment that enables the wheels to propel the vehicle. Included in that long list are systems like the transmission, transfer case, and differentials. A powertrain warranty is a contract to pay for unexpected repairs to this group of important systems if something goes wrong within a certain time and mileage window.
If you’d like more information on what a powertrain is, check out Popular Mechanic’s overview.
|Typically Included In A Powertrain Warranty||Usually Not Included In A Powertrain Warranty*|
|Engine or Motor Internals||Starter Motors|
|Transaxle||Throttle Body and Associated Parts|
|Prop shafts||Powertrain Control Modules|
|Turbochargers||Transfer Case Control Modules|
|Timing Belts Until 1st Maintenance Interval||Wheel Bearings|
|Timing Chains||Heater Cores|
*Our chart above is what GMC includes and excludes in its Powertrain Warranty.
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Each manufacturer provides its vehicle owners with a detailed listing of what is included in the powertrain warranty. The single best source of information on coverage for your vehicle is that listing. It can be found online or in an owner’s manual supplement.
The engine or motor of the vehicle is the starting point for the powertrain listing. Where the “engine” begins and ends is defined carefully by the manufacturer. For example, the engine block, pistons, valves, connecting rods, and crankshaft are parts of the engine.
Next is the transmission. It connects to things like transfer cases and differentials, which are part of the powertrain and included in most warranties. Finally, the systems that the transmission connects to are also part of the powertrain.
The items not covered in a powertrain warranty may surprise you. You can’t start up your powertrain without a working starter, but it is usually excluded. You cannot operate a conventional engine without an alternator, but it is excluded. None of the engine or transmission parts will work without the engine control module or transmission control module, but they are not part of your powertrain warranty. You cannot use a transmission without a clutch (if it is a manual), but guess what automakers exclude from your powertrain warranty? The clutch.
A drivetrain warranty is like your powertrain warranty but without the engine being included. Car Talks cautions shoppers not to purchase just an aftermarket drivetrain warranty. It is very limited, and is unlikely to protect you from the most common failures.
A bumper-to-bumper warranty is a comprehensive new car warranty. It covers everything that is included in the powertrain warranty and much more. This is the best one to have if you are shopping for an aftermarket warranty. Also, most manufacturers will sell you an extension to your car’s bumper-to-bumper, but you need to buy it before the one the car came with expires.
|Manufacturer||Powertrain Warranty Duration Period**|
|Mitsubishi||10 Years or 100,000 Miles|
|Hyundai / Kia / Genesis / Jaguar||10 Years or 100,000 Miles For the first owner and family members. Otherwise, Five Years / 60K Miles|
|Volkswagen (2018 and newer)||Six Years or 72,000 Miles|
|Honda, Toyota, Nissan, Chevy & Many Others||Five Years or 60,000 Miles|
|BMW / Mercedes / Audi / Cadillac / Tesla||Four Years or 50,000 Miles|
|Certified Pre-owned Vehicles||Check with your manufacturer’s dealer when buying pre-owned.|
A powertrain warranty’s duration is usually a number of months and miles, and the first to occur results in the ending. For example, five years or 60,000 miles. Each automaker or third-party warranty company sets the span. They can vary widely. Also, many automakers such as Acura, BMW, and Tesla only offer one warranty, not a Basic and separate Powertrain warranty. **In our chart above, we have shown the single warranty for the companies that have just the one warranty.
The longest powertrain warranty offered in America we could find is Mitsubishi’s 10-Year / 100,000-Mile Powertrain warranty. The second best is Hyundai / Kia / Genesis’ warranty for the same duration, but only for the original buyer and that buyer’s immediate family members. The warranty drops to the more standard five-years / 60,000-mile warranty for any other subsequent owners. The bulk of new cars in America come with a five-year, 60K-mile warranty. As noted above, against all logic, luxury and premium brands have the shortest powertrain coverage.
The powertrain warranty that comes with the purchase of a new car doesn’t cost anything, other than the purchase of the vehicle itself. A powertrain warranty is one of the main aspects of value when it comes to a new or used vehicle. A powertrain warranty has great value, particularly for those buyers who take ownership of a pre-owned vehicle. Just imagine if you were buying a used car. Which would you opt for if all other things were equal; A car with no warranty or one that had a manufacturer’s warranty on the entire powertrain?
When buying aftermarket warranties, the answer is less clear cut. Sure, any warranty has some value. However, if you are shopping for a third-party (not from the manufacturer) extended warranty on an older car, what leads you to believe the powertrain will be your biggest problem? A recent quality survey of vehicle owners by J.D. Power revealed, “Almost one-fourth of all problems cited by new-vehicle owners relate to infotainment. Top complaints include built-in voice recognition; Android Auto/Apple CarPlay connectivity; touchscreens; built-in navigation systems; and Bluetooth connectivity.” A study done by J.D. Power of three-year-old vehicles revealed that infotainment systems, “...account for more problems than any other category in the study.” The most commonly-reported problems in modern vehicles are not related to the powertrain.
If you have ever taken a glance at the reviews owners of third-party warranties post about the product they purchased, you will notice one thing very quickly. The reviews on a scale of one to five are generally either a one (horrible), or a five (fantastic). The reason for this is simple. If the warranty covers the needed repairs, the reviewer posts a five along with a happy-gram. If it did not, regardless of what the owner’s policy says, it gets a rating of one and some nasty commentary. Remember what we said about alternators, starters, wheel bearings, and AC compressors? All not covered by a powertrain warranty. Yet, if one fails, the car won’t work.
It is hard for Car Talk to recommend that a person purchase an aftermarket warranty that excludes a majority of items that can fail. It just seems like a recipe for unhappiness. And you don’t get to sleep any better at night knowing that only part of the car is covered by the pricey warranty you now pay for every month along with the car payment.
Electric vehicles and hybrids such as the top-selling Tesla Model 3, Tesla Model Y, Toyota RAV4 Hybrid and RAV4 Prime, and Toyota Prius and Prius Prime have powertrains that are not easily defined using the old terms. Electric motors are now replacing engines. Electric motors that power plug-in hybrid-electric vehicles like the RAV4 Prime and Prius Prime are integral to the “transmission.” Most manufacturers now offer separate, additional warranties on the hybrid and electric parts of these powertrains. Those who shop for vehicles with partial or full electric drive systems should take the time to look closely at how these systems are covered by warranties. Typically, they are longer in duration than traditional powertrain warranties, and they augment the vehicle’s powertrain warranty.
The single best powertrain warranty is one that your vehicle comes with or that you purchase an extension for. Your manufacturer will use original parts and its own trained mechanics to fix your vehicle if something goes sideways.
In addition to the company that built your vehicle, there are companies that will sell you a policy when the one your vehicle came with runs out. If you have a cell phone or mailbox, you have surely seen the sales pitches for them. Some are low-rated, questionable companies and others are highly-rated reputable companies. There are two notable ones that earned a spot on Car Talk’s list of the Five Best Aftermarket Vehicle Extended Warranties.
The first is Endurance. This company is a direct provider, meaning that they not only sell the plan, but they also administer it. Endurance offers four levels of coverage: Select Premiere, Secure, Superior, and Supreme. The difference in those plans is which parts of the vehicle the plan is going to cover. The Endurance Secure plan most closely mimics the traditional Powertrain Warranty.
CARCHEX is another highly-rated aftermarket extended warranty provider. CARCHEX offers service plans for all brands, both new and used. The company has also earned an A+ rating from the Better Business Bureau, meaning that they respond to whatever complaints they get, and they’re probably not hounding you on the phone late at night. CARCHEX can tailor a plan to meet whatever you wish to be covered and can provide you with one that closely matches the Powertrain Warranty your vehicle came with.
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A powertrain warranty is a contact to repair certain parts of a vehicle during a certain time span if they fail unexpectedly. Included systems are the engine, transmission, and power delivery components.
Engine failure, transmission failure, and problems with these systems are the most common powertrain repairs.
No. Components and systems like the alternator, starter, and throttle body are not covered under traditional powertrain warranties.
Generally speaking, a powertrain warranty and a drivetrain warranty are not considered to be the same thing. “Drivetrain warranty” is an outdated term. We could not find a single manufacturer who still uses the term drivetrain warranty.
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