TCM and electrical transmission grounded out TCM IN MY RESEARCH a lot of people are having issues with these. Dealers are of no help -??backordered-?? so having to rebuild them. This is an expensive failure!

- Marysvale, UT, USA

While driving on Saturday, July 29th, I went to make a right turn @ intersection of Nottingham Way onto Ledo Rd. The vehicle started jerking and suddenly shutoff. I had no power steering, No power brakes. I had to manually steer and stop the truck into the median, while avoiding oncoming traffic. I got the vehicle to stop. I tried to restart and the engine turned over, but would not start. I contacted the local Chevrolet dealership, and was told they don't work on anything older than 2013 vehicles. I had the truck towed to the house. After further investigation, there was a service bulletin 14515B, that replaced 14515A. The Safety recall stated CHASSIS ELECTRONIC CONTROL MODULE INTERNAL CONTAMINATION. So GM is aware of this issue, that could have caused an accident. The local dealership is denying that my truck is involved in this recall. They knew of the problem and never contacted me about this issue. This is a severe SAFETY issue. GM should be responsible for repairing a defective Control module as they knew of contamination as of January 2015. This almost cause multiple head on collisions.

- Leesburg, GA, USA

Dashboard instrument panel all lights and gauges goes out while driving down the road when vehicle is turned off a clicking noise is made in the dash. This issue causes when driving down the road, not knowing the speed because the speedometer is out or how much gas the vehicle has, or any other readings, and at night all lights go out, not able to see while driving down the road.

- Rolla, MO, USA

My dashboard instrument cluster has been going in and out since iv owned the vehicle in February of 2022 and iv replaced fuses did the reset test and everything on it and nothing I can-??t see my speed rpm-??s gas gauge nothing all the lights are on but nothing else moves or comes on I can-??t even tell the speed I-??m going or if I even have enough gas in the truck to even make it to a store I have add electrical problems since day one with the truck and replaced so many fuses for everything and nothing work-??s really even my alarm system don-??t work

- Panama City Beach , FL, USA

Transmission Control Module Since the summer of 2020 the vehicle has at least half a dozen times, without warning, experienced the following symptoms (most recently July 27, 2021 when I captured it on video). 1. power door locks begin cycling open and closed 2. intermittent chime operation 3. transmission locks into a single gear and won't shift or will shift harshly 4. gauges fluctuate 5. traction control and stabilitrak turn off 6. service traction control and service stabilitrak messages appear 7. transmission position indicator disappears

- Sedro Woolley, WA, USA

Seatbelt recall. And tire pressue light contiue to come

- New Orleans, LA, USA

The contact owns a 2009 GMC Sierra 1500. The contact stated that the vehicle hesitated and stalled without warning. The vehicle was taken to serra Chevrolet Cadillac Buick GMC (189 stonebridge blvd, jackson, tn 38305, (888) 380-6149) where they replaced the fuel pump module, cleaned the throttle body, replaced the fuel pump sending unit, and reprogrammed the module. The contact stated that the engine power was reduced due to lack of communication with the fuel pump module. Shortly after the repair, all of the warning indicators flashed, which had not occurred prior to the repair. The manufacturer was notified of the failure. The approximate failure mileage was 103,000.

- Swartz Creek, MI, USA

The contact owns a 2009 GMC Sierra 1500. While driving 65 mph, the speedometer and the tachometer gauges fluctuated up and down, the air bag and transmission indicators illuminated, and the engine seized. The vehicle was not taken to a dealer to be diagnosed or repaired. The manufacturer was notified and informed the contact to call a dealer. The failure mileage was approximately 47,540.

- Tampa, FL, USA

I purchased my truck about 1 year ago and it had 32,00 miles on it, it now has 40,000 miles. Everything was fine with it until about mid-April. I was driving to kalamazoo to see my daughter on I-94 around 72 mph with the cruise control on. I turned on my left turn signal to change lanes to pass the person in front of me and to my dismay my speed dropped drastically as the cruise control disengaged. This happened several times on the way to kalamazoo that day. It also got worse on this trip, sometimes the door locks would lock and unlock, all of the lights on the dashboard turned on and off and every time anything happened the speed dropped, which to me is a safety hazard and should be part of a recall. When I got home the next day, I called levalley GMC to take a look at my truck (where it's been serviced since purchase). When I explained the situation to them, they claimed they never heard of it. That's strange because if this situation is googled, there is a lot of information about what could be wrong. Lo and behold a day and a half later my truck was fixed at a cost of $1069.71 for diagnosis and 3 cables, all positive and negative battery cables. I consider this situation a serious safety issue. I sent a letter to GM customer service. Lou contacted me and left a voice mail with case number 8-4206988703 (6/4/18). I called customer service and spoke with toni also 6/4/18. Toni reviewed the case and asked what I was requesting. I told her that this is a very serious safety matter that should be addressed and I would like to be compensated somehow. Toni stated that there is no recall for this situation and there is nothing that she can do. I told her maybe there should be a recall and I again stated that this is a serious safety issue

- Saint Joseph, MI, USA

Vehicle will randomly show a warning signal for stabiltrack turning off. Then it will cycle door locks up and down, turn on the air bag light, ABS light, and sometimes reduce power to 20 mph. It will also kill the vehicle gauges. Numerous trips to the shop have failed to correct the issue. A quick google search of stabiltrack 2009 Chevy/GMC will show a ton of hits. Due to the safety concerns of these critical systems powering down, this is clearly a safety issue. This occurs while the vehicle is in motion, which makes it more concerning. This issue started with 66K miles and has persisted. Vehicle now has 96K.

- Cleveland, TN, USA

Faulty ignition switch. Can pull ignition key out after starting ignition and with it running.

- Morrilton, AR, USA

My truck died in traffic but I was able to get started and home (2 miles). My check engine light came on and I am reading a code U0191, which refers to the fuel pump flow control module. I had to purchase a battery because I had a battery draining issue and was having to jump it if it sat for a couple of days. My truck will not start at this time. After doing some checking, both my fuel pump and fuel flow module fuses are hot even with the truck ignition off. Which would indicate a short in the system. After some research, I found a safety recall that describes the exact issue but my VIN doesn't come up in the recall. Recall bulletin # 14515B. I guess what I am asking is why wasn't my vehicle included in the recall? apparently this is affecting more vehicles that what the recall included.

- Novi, MI, USA

All door locks are inoperative. They will not lock or unlock the doors with either the key of the door lock buttons. Just found this website-hence delay in reporting, did contact dealership-cost of repair is astronomical

- Floresville, TX, USA

The contact owns a 2009 GMC Sierra 1500. While driving at various speeds, the instrument panel lights blinked on and off. The failure also occurred while at a stop light. The contact took the vehicle to the dealer and they replaced the ignition switch and the body control module, but the failure recurred. The manufacturer was notified of the failure. The VIN was unknown. The approximate failure mileage was 53,843....updated 05/19/16 the consumer stated the airbag SDM module was corroded. The consumer stated the failure should have been corrected under the recall. Updated 11/2/2017

- Rockwood, TN, USA

I'm having electrical/computer problems that started over a year ago and continue to increase. First, my speakers go off and on as they please. The driver side door speaker is the only one that stays on consistently, and it has nothing to do with hitting bumps or anything else. Second, my power looks have gone out. My key fob will still work them and they still lock and unlock when truck is moved between park and drive. But the buttons on the door do not work. I've replaced all the fuses, and still, nothing. Third, my cruise control is going out. On a long drive I used it for half and then the other half it wouldn't even try to come back on. A few days later it worked again.

- Altus, OK, USA

The power door locks won't lock and unlock. I have already replaced one door lock mechanism at my cost. Now a second lock won't function. This is well known by GM. They refuse to recall it. This is a safety issue. GM needs to repair these door locks.

- Rockwall, TX, USA

My driver's door lock actuator has begun working intermittently. This is the second door lock actuator on my vehicle to fail, the first was replaced under warranty and the GM mechanic told me they have replaced numerous actuators. The vehicle automatically locks all doors when driven and unlocks when stopped however the faulty actuator does not always lock or unlock. These actuators have a long history of being defective and GM is aware of it but refuses to recall the faulty actuator even though they have literally replaced thousands of these units. These faulty actuators are a safety concern because in the event of an accident a door could fail to unlock effectively trapping the occupants. The faulty actuators are also a security concern because they could fail to secure the vehicle allowing anyone access to it's contents.

- Arkadelphia, AR, USA

The contact owns a 2009 GMC Sierra 1500. The contact stated that while driving 45 mph, the vehicle stalled without warning. The vehicle was towed to dealer to have a diagnostic performed. The contact was advised that the wiring harness assembly was rubbing against the driveshaft, causing the wires to become loose and the vehicle to stall. The dealer changed the wiring harness location and replaced the damaged wires. The vehicle was repaired. The manufacturer was made aware of the failure. The failure and current mileage was 83,000.

- Navarre , FL, USA