10.0

really awful
Crashes / Fires:
2 / 3
Injuries / Deaths:
2 / 0
Average Mileage:
46,306 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.

2014 GMC Sierra 1500 electrical problems

electrical problem

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2014 GMC Sierra 1500 Owner Comments (Page 1 of 6)

problem #106

May 242023

Sierra 1500

  • miles

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

I have a scan tool and it says my brake recall is unfinished. But website says it has been fixed. My brakes are terrible and keep getting service brakes airbag and stabilitrack. The download they used when I took in for the recall was not finished

- Cordova , MD, USA

problem #105

Apr 252023

Sierra 1500

  • miles
Today I was driving on a residential road and my truck completely stopped while driving. My wheel locked up and I was unable to steer and almost hit another car. This has also happened a few weeks ago while driving on the highway at 70 miles per hour. My vehicle shuts off, I turn the key back and then restart it and I get the following 2 messages: 2 Keys programmed, and Open then close driver window. This is very dangerous and apparently a major problem with other vehicles as I have found the below additional details. This puts my family and others at major risk. I have asked to dealership to look at it but they state they have to keep it for several days and see the issue for themselves, and since it happens so sporadically I cannot be without my vehicle for that amount of time. Apparently it is an issue with the ground wires ands wiring harness. chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://static.nhtsa.gov/odi/tsbs/2017/MC-10113356-9999.pdf https://www.youtube.com/watch?v=gvpsaDm-jj4

- Houston, TX, USA

problem #104

Apr 102023

Sierra 1500

  • miles
What component or system failed or malfunctioned, and is it available for inspection upon request" How was your safety or the safety of others put at risk?: The truck just stalls and dies without warning, all lights go off inside and outside and all power is lost. From digging on the internet, I found out the problem is due to one or more rusty/defective connection to ground which stops current from flowing and therefore stalls the vehicle and turns everything off. When the truck stalls, power steering and power assisted breaks are not available and this makes the truck very difficult to guide/stop for most people, making it a significant safety risk to occupants as well as others as the likelyhood of a collision increases significantly. In addition, since all electric accessories are disconnected, warning/flashing lights can not be turned on to advise others that the truck has stopped. Has the problem been reproduced or confirmed by a dealer or independent service center? The problem is hard to reproduce because it happens at random times, it has happened to me at least 5 times in the last month or so. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? NO Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear" NO warning messages or other symptom.

- Houston, TX, USA

problem #103

Apr 012023

Sierra 1500

  • miles

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

I am losing engine power. My OBD2 gives me P2138 and P0700 codes. I have changed the accelerator and knock sensors.

- Ypsilanti, MI, USA

problem #102

Sep 222022

Sierra 1500

  • miles
Service brake lights come on. Brake pedal locked up and lights dimming and transmission shifting irrelevant

- Cordova , MD, USA

problem #101

Jun 142022

Sierra 1500

  • miles
Service trailer brake system warning message. Trailer brake controller inoperable.

- New River, AZ, USA

problem #100

Jun 062022

Sierra 1500

  • miles

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

Whenever driving I get a message stating that I need to service my trailer brake system. This is most likely due to cheap wiring installed by the manufacture. This has been going on for over a couple of months. Just recently, I was making a slow turn and my vehicle shut off on me and I lost control of my brakes and steering and all power to the vehicle which is a huge safety concern and I am unsure if they are related or not

- Davis, CA, USA

problem #99

May 042022

Sierra 1500

  • miles
While driving, the vehicle will briefly shut down and lose all engine and electrical power. The GMC dealer was alerted and I was advised to the battery cable that were burned out and the starter shield.

- Montgomery, AL, USA

problem #98

Nov 212021

Sierra 1500

  • miles
Air bags didn't deploy on 2 separate incidences and brakes went out last incident

- Mount Morris, MI, USA

problem #97

Apr 262022

Sierra 1500

  • miles
When I slow down to make a turn, my truck loses power making the turn very dangerous. I lose control of the vehicle for a few seconds due to loss of power. It is very dangerous for me to make turns.

- Montgomery, AL, USA

problem #96

Feb 282022

Sierra 1500

  • miles

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

Trailer brake system is blinking to much

- Los Angeles , CA, USA

problem #95

Mar 042022

Sierra 1500

  • miles
Intermittent service trailer brake system messages, dealer unable to troubleshoot.

- Germantown , TN, USA

problem #94

Feb 262022

Sierra 1500

  • 150,000 miles
The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving approximately 10 - 15 MPH with the rear defroster activated on the rear powered sliding window, there was a sizzling sound, and started smelling smoke inside the vehicle. The contact pulled over, stopped, exited the vehicle, started inspecting inside the rear of the vehicle; and saw smoke on the driver-€™s side rear of the vehicle, between the window and the seatback. While the contact was bent over trying to ascertain where the smoke was coming from, the driver-€™s side rear window exploded. The contact poured water on the window to put out the smoke. During the explosion the contact sustained a mild concussion and severe earache that lasted for two days; however, medical attention was not needed. The Fire Department and Police Department were contacted and notified of the failure. The contact was informed by the Fire Department that the cause was an electrical system fire. The vehicle was driven to the local dealer to be diagnosed however, the cause for the failure was not yet determined. The vehicle was not yet repaired. The manufacturer was contacted regarding the failure but no assistance was offered. The VIN was not available. The approximate failure mileage was 150,000.

- Thornton, IL, USA

problem #93

Feb 282022

Sierra 1500

  • miles
I was driving into a Walmart parking lot making a turn and my vehicle shut-off while I was driving-€¦.I was lucky that it wasn-€™t another car behind me -€¦ 2) i was turning out of my driveway and my vehicle shut off while coming out of the driveway-€¦ I live on a busy street lucky no traffic was coming

- Fort Wayne , IN, USA

problem #92

Feb 172022

Sierra 1500

  • miles
When turning 30 mph and under the eps (power steering) cuts out randomly for a second or less and jerks the wheel only causing a slight swerve so far but has me worried and I'll be paying for the software update out of pocket since my truck isn't in the recall even though other 2014 sierras are recalled.

- Tomah, WI, USA

problem #91

Dec 052021

Sierra 1500

  • miles
After driving vehicle for about 40 mins from last parked location, i slowed to take a left hand turn, engaged blinker, accelerated while proceeding to turn left. the steering wheel jerked to the Right and sounded an audible "ding" and door locks engaged. upon driving an additional estimated 100 feet, the entire system shut down. (i happened to be turning into a parking lot where there was a car parts store in town) no power at all, nothing on the display panel, all doors remained locked and i was locked inside the vehicle. i placed the gear shift into Park and tried unlocking the doors, which would not unlock due to no power. taking the key out of the ignition and reinserting it and tried to start did nothing. after a few more failed attempts, the interior lights and display screen flashed (glitchy blinking) and after a few more attempts, when the key was turned to the run position I finally had normal power. the doors finally unlocked. seemed as if the system rebooted itself and i had power and was able to start the vehicle. the dash panel showed a message to roll down the drivers side window, then showed a message to roll up the drivers side window. after i followed the prompts, everything returned to normal. i went into the parts store and had them hook up to a code scanner, which did not show any codes, the battery, alternator, and starter were also checked and were fine. i was able to drive home with no problem. I am afraid to drive my truck because i do not want this to happen when driving at a higher rate of speed. I was fortunate to be turning into a parking lot when the event happened. I am fearful of this happening again and causing an accident.

- Tahuya, WA, USA

problem #90

Nov 252021

Sierra 1500

  • miles
I-€™m having a trail break system warning every few minutes. It is constant and beeps consistently. To the point where I almost cannot drive it. It won-€™t go away after a little while and is constantly turning on and off. This just recently occurred and hasn-€™t stopped since. Likewise there was no other indication of this happening till about two days ago. It-€™s very distracting and persistent to the point where I feel like I can-€™t even drive with it on.

- Victor, ID, USA

problem #89

Aug 162021

Sierra 1500

  • miles
The truck just shut off all electrical and dash controls as I went to turn into my driveway. Its done it to me twice so far in the last 3 weeks.. no brakes and no power steering.

- St Marys, KS, USA

problem #88

Aug 012021

Sierra 1500

  • miles
Driving 5 mph, error came on and truck shut off completely while still driving, I was able to start it, drove to my destination, about 10 miles away. Parked and turned off truck, came back, the truck was completely dead. replaced the battery and was fine for a month. Yesterday while pulling up to destination on low gear going slow error showed up, the engine revved high then shut down completely. EPS recall and no dates to service yet.

- Anchorage, AK, USA

problem #87

Jul 272021

Sierra 1500

  • miles
While fixing an exhaust leak on this vehicle, the grounding cable that attaches to the engine block appeared to be chafed, partially crushed, and exposing some copper. The grounding cable runs down the firewall of the passenger side of the vehicle, runs briefly along the frame rail, and passes underneath the exhaust manifold. There is a potential for the cable to not properly ground over time, causing unknown issues. The vehicle has not been inspected by the manufacturer or dealer as this vehicle is outside of bumper-to-bumper warranty. A support case was opened with GM, but as an individual, they will not allow me to report the issue with pictures. They require the dealer to be the reporter.

- Greensboro, NC, USA

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