89 problems related to electrical system have been reported for the 2018 Chevrolet Silverado 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Chevrolet Silverado 1500 based on all problems reported for the 2018 Silverado 1500.
Vehicle started to fill with smoke. I exited vehicle to look in the back seat when all of a sudden the rear window exploded causing glass to come flying at me. There was a recall for this exact same issue, however gm says this vehicle is not included in it. Obviously there are more vehicles that need to be recalled!.
While driving down the highway, I heard a ding and the service trailer brake message appeared. Several minutes later, while driving about 30 mph and coming to a stop, I heard the ding again, the service trailer brake message appeared again, then all electric components died. I had no lights or gauges working, the radio turned off, the a/c turned off, I loss all steering capabilities as my steering wheel locked in place, and the engine died. All of this occurred while the vehicle was still in motion. As I pressed the brake and came to a stop, the electronics regained power. A message appeared telling me to lower and raise the driver's side window. I came to a complete stop. Even though the electronics returned, I had to restart the engine. I put the vehicle in park, turn it off with my key, then start it again with the key, all while stopped on a very busy highway. I was able to drive the vehicle home with no further issues. I have not contacted the dealership yet, as they are currently closed as I write this. I will be contacting them and informing them of the issue. I had mentioned a similar issue to the dealership a few years ago. They made a report of the incident, but said there is nothing they can do if they cannot replicate it. This is very dangerous. Losing all electronic functions, including the ability to steer and having the engine die while driving is scary. I can lose the ability to guide my truck and crash the vehicle into something or someone. This puts my family at risk and anyone else on highway that may be in proximity. There is no telling when this will take place. I have had electrical issues randomly happen while starting the vehicle, but not while driving. I may go weeks or months between electrical startup problems. My vehicle is available for inspection upon request.
Service parking brake system keeps coming on, switch has been replaced and it still comes on. I have had the traction control light and service abs light come on. Took to shop they told me there was a broken wire the first two times in the harness.
The vehicle has just completely died on me at least twice while driving it, the power steering keeps cutting out, and the headlights will dim significantly upon pressing the brake pedal or using turn signals. This has been going on intermittently for months. Upon an internet search, this does not appear to be an uncommon issue.
The control module for the passenger side air bag failed. A warning light depicting the air bag was continuously displayed until the module was replaced according to the dealer service department, the air bag would fail to deploy with this failure.
The service stabiltrak and trailer brake system warming light comes on. The dealership said that it is a wire harness.
The hood latch sensor has gone out and says that my hood is open when it is not. The problem is that the security alarm reads it as someone’s tampering with my hood and sets off my alarm. At this time I am unable to lock my truck because the alarm constantly goes off. The dealer has said this is happening so often that the part is severely back ordered.
I have done some research and found other trucks same year and make have had the same problem and have had recalls but the problem is when I hit the break the lights will all flash like the truck is going to stall and it will say service trailer break system and stablitrak system and will even shut my truck off while I’m driving causing me to have to either pull of the side of the road and start my truck back up.
Service trailer brake system message appears and disappears constantly, check engine light.
Faulty injector connectors get a loose connection and make truck shutter and check engine light come on . This has happened 3 times already and had to replace one faulty plug . This is all over the internet from other l5p owners. Yet GMC want do anything.
Radio changing channels by itself, menus changing by itself, instrument screen changing from info to audio by itself, calls being made to last number by itself, navigation image jumping to different areas by itself not showing the vehicles location, causing confusion when trying to get directions. All this is very distracting for driver and could possibly cause distraction enough to cause an accident.
While driving down the road, I received several non stop alert messages stating "service trailer brake system". The messages were non stop and while I did attempt to acknowledge them and dismiss the alert, I was distracted from driving and had to pull over to attempt to acknowledge or dismiss the alert. After several minutes, I was able to dismiss the alert and continue on my way. This happened on Tuesday evening around 5:00 pm on August 30, 2022. I called mike anderson Chevrolet on Wednesday August 31, 2022 around 12:30 pm to advise them about the situation and was told it was water in the wiring.
Radio will not let you use part of the screen that controls the phone system. Can not use hands free calling. Cannot us any buttons on the bottom of the radio or the left side. Complaint #11479518 was also filed.
Service trailer brake system audible message appearing due to faulty wire harness between body control modules.
Sudden loss of vehicle electrical power as well as steering and break control due to faulty negative battery terminal. Engine will stall and steering wheel will kick back and issue a stabilitrak service message. Vehicle will become inoperable while still moving with no way to control.
At a low speeds while taking a turn, the electrical system clicks off and then clicks back on after about a second. Im able to see the voltage drop while taking the turn. When this happens, the power steering goes out while taking the turn. . Read more...
The electrical power steering failed on my way home as I turned in to my street my steering became very hard to control nearly causing me to crash into a neighbors vehicle. This is the second time my electrical power steering has failed. About a year ago the original electrical power steering went out and a new one was purchased from a dealer ship and installed by a automotive company. Here we are a year later and it has gone out again but this time almost causing me to crash during a turn into my street. No warning to me at all that my power steering was about to go out. Yes. My 2018 silverado truck is available if an inspection request is asked of me.
Radio is malfunctioning. Radio would randomly change channels. Than the radio would have a line in the bottom of the screen. Than the half the radio just quit. Now the radio or phone calls does not work at all. I do not have access to hands free calls. I believe there is a recall on the same stereo for the 2019 models. It has not been inspected but is available for inspection. No warnings lights prior to the radio not working. I have a video but I do not know how to attach.
The contact owns a 2018 Chevrolet Silverado 1500. The contact stated while driving 45 mph off the highway towards his home, the electronic gauge started fluctuating, indicating a low voltage failure. There was no warning light illuminated. The contact stated that he parked the vehicle in the driveway and turned off the vehicle. The contact then attempted to restart the vehicle however, the vehicle failed to restart. The manufacturer was notified of the failure and recommended that the vehicle be taken to an authorized dealer for service. The vehicle was towed to the dealer but was not repaired. The failure mileage was 43,364.
Rear back up camera not working. Blue screen on dash. This is a very common issue with gm.
The rear driver side lamp started flickering and eventually was completely dead. On inspecting, it was found that the earthing brown wire pin in the connector was completely burnt and it also burnt the area right on the spot where it connects to the lamp panel.
I have a 2018 chevy silverado 4wd, crew cab truck purchased brand new in 2018. Over the last year, I have had intermittent, and relentless chiming of the "service trailer brake system". This occurs any time, completely randomly during normal, everyday driving and while not towing. It is horrendously distracting, and won't stop once it starts, even after clearing the message, it will continue to chime again every 1-2 minutes until I park the truck and turn off the engine. I have taken it to my local chevy dealer, they can't find anything wrong with my truck. I have checked fuses, switches and relays, to no avail. I see this is not a "once-off" problem, it would appear 10s of thousands of consumers have had the same issue posted about blogs, youtube and more around the internet since at least model year 2017. This is a complete safety hazard and unacceptable! the chime is a distraction and prevents other vehicle safety features from being usable when it is going off. In addition, I imagine if I were towing, that means my braking system would be rendered unusable. That doesn't seem acceptable and there should have been a recall on this already based on my vast research. I am angered that this keeps happening even under normal driving conditions, and it is a defect of the trailer wire harness system, not something any vehicle owner has done, not due to abuse, or even normal wear and tear. I am angered that even my dealer can't find and fix the problem. However, it should not be my responsibility since this is a clear and obvious defect amongst nearly 100,000 similar model vehicles. I do not feel this is safe in any way and there needs to be a remedy "recall" performed so that other owners and myself can get this taken care of once and for all. Thank you.
The power steering will randomly go out when turning at slow speeds, or when parking. The entire truck has lost power steering and then lost all power to the vehicle for a split second then return to normal power.
10 degrees outside starter motor will freeze up and not want to start the truck. Had 3 mechanics not a deal all look at it, tested the battery and came to the starter motor is defective. To have the starter replaced at the dealer for its under warranty.
While driving in the daytime voltage at the dash dropped almost 9 volts but when I turn the headlights on, it goes back up to 14 volts I’ve had this problem since I got the truck January 5, 2022.
Trailer brake service warning.
Bought the truck new. Never towed a trailer till well after warranty. Service trailer brake light keeps coming on continuously. Then no trailer lights or trailer brakes. Found 2 blown fuses but now the same thing is happening again. After my research I found tons of information that lots of other people are having the same issues. I have not pulled my RV since because I'm worried about it not having brakes. It's quite large and without them this truck would not be able to stop in case of a quick emergency.
Trailer brake system failure we noticed the sudden drainage of power resulting in death of battery multiple times alert was present after we notice the loss in voltage in battery to battery drainage after research I found that it is usually a short or a bad wiring harness which causes this and could pose a danger considering how I at one point in time have trilled things this could be an issue and a danger to others on the road.
Service trailer brake system warning has been activating, without a trailer attached, since October 2021 off-and-on. When this occurs it has created a very distracting situation while driving due to the relentless chiming of this warning notice.
Truck loses power driving down the road. The service trailer brake system warning comes on the dash. The battery dies because of this also.
Twice now gm has recalled the block heater for my truck. The first remedy did not fix the issue and had to be recalled again. This was back in July 2021. It is now the end of November 2021 and nothing more has been done. My truck requires a block heater in order to start in the upcoming cold months. This will make two years in a row I cannot use my truck when the temperatures fall below freezing. It directly affects my livelihood because I need a truck for work. What more can I do to speed this process up? how is it gm can still sell new diesel pickups with working block heaters, but are not required to fix the older diesel pickups?.
The contact owns a 2018 Chevrolet silverado. The contact stated that while driving approximately 75 mph and approaching a bend, the vehicle lost power and shuddered. The traction control and engine warning lights were illuminated. There was smoke emerging from the vehicle. The vehicle had previously lost power and stalled. The vehicle was taken to the local dealer, where it was diagnosed and the battery was replaced. The mechanic informed her there was a possible electrical failure. The vehicle was repaired, but the failure recurred. The vehicle was towed to the local dealer, where it was diagnosed that the lifter needed to be replaced. The vehicle was not repaired. The manufacturer was notified about the failure. The failure was approximately 88,799.
For months now, my 2018 chevy Silverado 1500 has a “service trailer brake system”notification on the the dash that repeatedly pops up every 5-15 seconds while the vehicle is on, including while driving. This, along with the pinging sound that comes with the notification, makes the vehicle difficult to drive due to the constant distraction the notification makes. I have tried taking issue with the dealership but they are not helping whatsoever. From my own research online, I have seen hundreds of other people experiencing the same issue. Please help us eliminate this distraction by forcing a recall and thus making the roads safer for everyone. Thank you.
At slow speeds, such as when parking, the truck?s electrical system shuts down, I lose power steering, dash lights, radio, and then the truck restarts itself and continues. This has happened multiple times and Chevrolet dealers don?t w what the problem is. If nearly collided twice due to lack of power steering.
The contact owns a 2018 Chevrolet Silverado 1500. The contact stated while driving at various speeds during high weather temperatures, it was discovered that the air conditioning system failed to activate and cool the vehicle. The vehicle was taken to an independent mechanic where it was diagnosed with the radiator valve was leaking and needed to be replaced. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 38,540.