6.5

fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
10,838 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2015 GMC Sierra 1500 engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2015 GMC Sierra 1500:

Unsubscribe any time. We don't sell/share your email.

2015 GMC Sierra 1500 Owner Comments

problem #4

Jul 272023

Sierra 1500

  • miles

A D V E R T I S E M E N T S

When I turn the steering wheel, the ac turns off, lights turn off, the computer screen turns off, steering wheel gets hard and does a jerking movement. The truck turns off too and then suddenly turns on. This can cause a death. If this happens in a highway or a street where speed is high this can easily cause a death.. fortunately this has happened going at 30 mph and no one close at the time and also at a drive through fast food restaurant. It has not been confirmed by the dealer but I will soon have to take it. The only light that comes up is the StabiliTrak.. but it only lights up when it happens and then it goes away.

- Baytown, TX, USA

problem #3

Feb 032022

Sierra 1500

  • miles
Everything is horrible in the truck

- P, AL, USA

problem #2

Jan 082018

Sierra 1500

  • 32,500 miles
Vehicle is shutting off at any given speed, ie. 35 mph in town or 70 mph on a highway with oncoming traffic. When vehicle shuts off, loss of all control of the vehicle takes place. No brakes, no steering, nothing until the vehicle randomly turns back on. This is not a consistent occurrence to know when it is going to happen or be prepared for it to happen. I watched my husband shoot across the road into the other lane and almost put the vehicle over a bank one night when it happened. This has been an issue since January 2018 for us, we have taken it to the dealer where it was purchased multiple times for them to tell us they can't duplicate the issue and nothing is coming up in their system for an error code. It has caused a major inconvenience for my family, as we don't dare put our children in the truck leaving the responsibility solely on one parent to Transport the kids to and from daycare. I worry for the safety of my husband on a daily basis.

- Pine City, NY, USA

problem #1

Jul 102016

Sierra 1500

  • 10,850 miles
Truck has vibration in the steering wheel and gas pedal between the speeds 30-75 mph. When driving the truck at any of the listed speeds and have the speed steady at said speed, vibration can be felt in the steering wheel and gas pedal in the 2wd and 4WD-auto modes. Also when the engine shifts from V8 to V4 modes. Truck has been to three (3) dealers so far and did not see much improvement in the vibration.

- Reading, PA, USA

Not what you are looking for?