really awful
Typical Repair Cost:
No data
Average Mileage:
60,600 miles
Total Complaints:
7 complaints

Most Common Solutions:

  1. not sure (6 reports)
  2. replaced engine compartment fuse box (1 reports)
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2014 GMC Sierra 1500 electrical problems

electrical problem

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2014 GMC Sierra 1500 Owner Comments

problem #7

Aug 172019

Sierra 1500 SLT 6.2L

  • Automatic transmission
  • 91,300 miles


Truck totally lost all power. Lucky to get it off the road. After about five mins power came back on. This has happened many times. Does anyone know of a fix?

- Edward M., Jackson, US

problem #6

May 252019

Sierra 1500 SLE 4.3L

  • Automatic transmission
  • 19,245 miles

Driving complete shutdown, no power, no light dash. Completely black. After 10 mins power came back on.

- Elijah N., Maringouin, LA, US

problem #5

Jun 182018

Sierra 1500 SLE V8

  • Automatic transmission
  • 36,650 miles

For a year I've been having issues with my truck. There was a good chance that when I would tap or hit the brakes, the headlights would dim. Occasionally, while putting the truck into reverse, the power steering would go out and I would hear chimes and receive a notification stating that Stabilitrac was off. There were times that I'd hit the brakes and the dashboard would turn off (including the touch screen display). When the power would come back on, the radio would go from 710am to 720am. However, just the other day I was slowing down for a stop light and when I hit the brakes the entire truck shut down. I had to place truck into neutral and restart it and jam the brakes to avoid a collision. When everything restarted, my radio went from 710am to 750am and I received a message to service my trailer brake system.

Update from Oct 10, 2018: I took my truck into the dealership where I purchased it from. I first received a call telling me that the voltage for the battery would drop from 12 to 8, which would explain some of the components restarting or turning off. The service manager told me that they found that the positive battery cable was frayed and that they soldered it. That did not fix the issue so a few hours later I was called and was told that they traced a fault back to the fuse box in the engine compartment. That was subsequently replaced and I have had zero issues with the truck since! I had this done 3 months ago and wanted to give it time before I reported back.

Update from Sep 18, 2020: Since I have had the fuse box replaced, I have moved across the country and put 20k miles on the truck. I have not had the issue reoccur!

- Justin P., Bonney Lake, US

problem #4

Jun 122018

Sierra 1500 SLT 3.2L

  • Automatic transmission
  • 100,000 miles


During driving, the stability sensors would go off and show up stating stability turned off, or power steering turned off. The voltage on vehicle would suddenly drop from 15 to 9 and then back up and stays at 9 and when it dose problems electrical problems seem to get worse and the air bag light will come on. This will usually turn off the interior lights and electronics. I have discussed this with other 2014 Sierra and Silverado owners and they all advised this was occurring on their vehicles.

During one of my drives to work going 60 mph, the electrical components shut off and caused the engine to stop running. I was able to pull over while coasting on no power and restart the vehicle and it would continue to go. There have been times where the steering wheel would jerk while stationary as well. All sorts of malfunctions are happening a warning came up on dash to roll up drivers window and back down, check front cameras and there's no front camera, Slow turns the vehicle shuts down and steering goes out took truck in for this recall and that's when all the electrical problems started.

While dealer was trying to reprogram the computer for the steering issues the computer would not take the code and they finally called in to GM technical and with their help got the new codes in but a few days later it all started and has gotten worse. I work out of this truck and put about 55,000 miles a year and can not be without a vehicle and really can't afford to buy another vehicle right now.

Need some sort of answer. Going to look into the ground issue that might fix this. I will return for the recall steering issue one more time.

- Van P., Vidalia, US

problem #3

Aug 102018

Sierra 1500 5.3vtech

  • Automatic transmission
  • 70,000 miles

Bought truck in October of 2017 used. Truck was fine until we took it to Feldman Chevrolet to have the stability assist fixed under recall. After the fix, the truck has never been the same. We took it back the next day and Feldman mechanics said there was nothing wrong. Today we barely missed being in an accident in downtown Brighton MI because the truck quit again.

What can be done about it?

- Jackie F., Hartland, MI, US

problem #2

May 242018

Sierra 1500 SLT 5.3L V8

  • Automatic transmission
  • 64,800 miles

We have a 2014 GMC Sierra SLT. On several occasions, the vehicle engine has shut down while driving (usually during a turn at intersections). My local dealership has addressed these issues and informed me that certain control modules have needed to be reset. I have owned this vehicle for only approximately 2 weeks and have had this issue approximately 5 times already.

The last "fix" that was done, was the installation of a new battery on the vehicle. Is it fixed? Who knows!!! It was supposed to be fixed every time it went to the shop. This is a very dangerous issue that NEEDS to be addressed by GM. When the vehicle engine stops during a turn, no steering, no brakes, NO CONTROL!!! If anything or anyone is in the radius of your turn, there will definitely be accidents and or injuries, maybe even death.

Then you have to take into consideration, liability! Why should someone be sued and have to pay hundreds of thousands of dollars for an accident that was caused by a defective vehicle? Then, that person will have to live with the fact that someone is injured or dead. I don't want that on my conscious every day.

Now, let's turn the tables. This could possibly happen to someone that doesn't even own a vehicle like this. I don't want to be on either side of this situation. Where is the NHTSA? I mean, come on General Motors! You can do better than this. There is absolutely no reason for an engine to shut down unless sensors detect a crash. I have put my confidence and the safety of my family in the hands of General Motors. I can only hope and pray that they can make all of us safer on the highways and byways that we all travel everyday.

- Christopher G., DeRidder, US

problem #1

Jul 142017

Sierra 1500 All Terrain 5.3L

  • Automatic transmission
  • 42,000 miles

While driving, like many other's, truck displays various issues "stabiltrak" being the main one, then shuts down and I mean goes completely dead like another person said....turns into a brick on wheels! This is an issue and needs to be addressed before someone is killed. GM NEEDS TO ADDRESS THIS ISSUE. CAN YOU SAY MAJOR LAWSUIT IF ANYTHING HAPPENS TO MY FAMILY OR SOMEONE ELSE.I have contacted several dealerships service people and they all say the same thing "well I'll need my tech to take a look at it" which means bring your wallet! Which is BS! You pay 40-60k for a vehicle and this is how your treated...? GM needs to address and fix these issues before someone is killed.

- Chris B., Spring, US

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