The 2013 GMC Sierra 3500HD
About 13 years old. Here is where its factory coverage stands and which milestone is next.
Factory coverage, as of this year
GMC has generally covered vehicles of this era for 3 years or 36,000 miles bumper to bumper, and 5 years or 60,000 miles on the powertrain.
Bumper to bumper
Likely expired
On the calendar this term ran out around 2016.
Powertrain
Likely expired
On the calendar this term ran out around 2018.
Confirm this, do not trust it. Warranty terms vary by model year, trim, and market, and coverage runs from the date the vehicle was first sold rather than the model year. The only reliable answer comes from GMC with your VIN. This page tells you what to expect and what to ask.
Where the odometer sits
At an average 12,000 miles a year, a 2013 example is somewhere around 156,000 miles today. Yours could be well under that or well over it, and on this question mileage matters more than the calendar.
A vehicle of this age is past the milestones that factory coverage is written around. What ownership costs past 100,000 miles.
What to know about this model line
Offered with a gasoline V8, a 6.0L through 2019 and a 6.6L from 2020, or with the 6.6L Duramax turbodiesel V8, depending on year and trim. Transmissions are conventional automatics, a 6-speed behind the gas engines with a 10-speed arriving late in this window, and a 6-speed or 10-speed Allison behind the diesel, in rear wheel drive or four wheel drive, and the truck is sold in single rear wheel, dual rear wheel, and chassis cab configurations.
These are planning notes about how this model line is built, not a claim about any individual vehicle. Two examples of the same year can be in completely different condition, and maintenance history tells you more than the badge does.
This one is on you now
Both factory terms have most likely run out on a vehicle this age, which means every repair from here is yours. That is not a reason to panic and it is not automatically a reason to buy anything. It is a reason to know the number.
The question worth answering is not whether coverage pays off on average. It is what a four thousand dollar repair estimate would mean for you specifically. If that goes on a credit card, a service contract is doing something real. If it comes out of savings without much pain, self insuring is a perfectly sound choice and nobody should push you off it.
One timing note, because it decides more than anything else here: every legitimate service contract excludes pre existing conditions and has a waiting period, usually around 30 days. Coverage is a plan while the vehicle is working, and it is unavailable once it is not.
See what coverage looks like for yours
Takes about 30 seconds and does not obligate you to anything.