2018 Chevrolet Silverado 1500 Electrical System

Odometer Fraud. The contact purchased a 2018 Chevrolet Silverado 1500. The contact discovered that there was a mileage discrepancy after the purchase. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 30,434. It was later discovered upon checking Carfax, Auto Check, and VIN Inspect that the mileage was 134,000.

An electrical component related to the vehicle's rear sliding glass window and rear defroster malfunctioned and overheated, causing smoke to fill the cabin of the truck as it was being driven down a busy highway. Immediately following the smoke, the rear window violently shattered due to overheating from the malfunction. This dangerous defect was known to exist in our model and year of truck, as documented in Customer Satisfaction Program N192265660. This bulletin shows that GM knew about this exact issue, yet allowed the vehicle to be sold and driven. This incident was incredibly dangerous and easily could have caused my wife (who was driving) to crash the vehicle due to limited sight and distraction. My wife called me following this incident and was terrified and confused. There were no warnings, signs, or symptoms suggesting an issue with the electrical component until the incident occurred. We immediately contacted GM, who advised we were not permitted to get the vehicle fixed until they completed their inspection; however, it has been nearly a week and no inspection has occurred at this time.

This complaint is submitted as additional information related to a previously filed safety complaint for the same vehicle and incident. Since the original submission, General Motors Product Assistance Claims verbally denied responsibility, refused to inspect the vehicle, refused to provide written confirmation of their denial, and ceased responding to emails and calls. GM previously instructed me not to repair the vehicle and promised a rental vehicle and tow, neither of which were provided. The vehicle remains unsafe to drive due to smoke intrusion and shattered rear glass and has been left exposed to freezing and rainy conditions. This incident appears consistent with a known rear window defroster thermal defect similar to GM Customer Satisfaction Program N192265660. GM’s refusal to inspect or mitigate increases safety risk.

The contact owns a 2018 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the vehicle briefly lost electrical power before returning to normal functionality. The contact stated that during the brief failure, the electronic power steering was not functioning properly, requiring increased effort to maneuver the vehicle. No warning lights were illuminated. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The manufacturer was not notified of the failure. The failure mileage was unknown.

Doors automatically lock with the keys in the ignition and running locking in anyone who is still in vehicle who cannot open to door physically. It will also prevent you from entering the vehicle without a second set of keys or other methods of unlocking the door (onstar, locksmith). This could put occupants in danger and exposed to the elements unexpectedly and also place inside children in danger. Diagnosis - Keyfob - If battery in keyfob is low, the programming of the vehicle is set to automatically lock even if vehicle is in the ignition and running. when unlocking vehicle with the defective fob, vehicle will unlock, then immediately lock preventing entry. Remedy - Replace battery in key fob and truck works as normal.

The contact owns a 2018 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to an independent mechanic, who observed damages to the main wiring harness, due to a failure with the over molding protective shell. The vehicle was repaired, but the failure reoccurred. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was 130,000.

Odometer Fraud. The contact purchased a 2018 Chevrolet Silverado 1500. The vehicle was a private sale. The contact stated that while attempting to register the vehicle, the contact became aware that the title was incorrect, and it was discovered that there was a mileage discrepancy. At the time of registration, the mileage was 43,000. The contact stated that a Carfax report indicated that the mileage was 149,000.

The trailer brake signal will alert an unnecessary amount of times randomly.

Rear window defrogger overheated and caused the back electric sliding window to shatter and when door was closed the window blew out!

At random the touch screen/radio will continuously switch through screens and apps while operating and will become extremely warm to the touch. The display screen on the instrument panel will also scroll through randomly. The heat will stay on continuously even though it is off.

turned on rear window defrost and unit started smoking badly with a chemical smell while driving truck. I pushed button to turn rear defrost off so it wouldn't start on fire but the unit had heated up so badly it shattered the window it was touching.

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!

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.

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

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.

Rear Back up camera not working. Blue Screen on dash. This is a very common issue with GM

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

2018 CHEVROLET SILVERADO. CONSUMER IS SEEKING REIMBURSEMENT FOR REPAIRS MADE TO VEHICLE.

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

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 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.

Circulating air does not engage, toxic fumes enter cabin. Almost causing me to black out, I have thrown up. Have complained,, but chevy calls this "usual or expected" Have read on forums that I'm not the only one dealing with this.

Hood latch sensor throws an engine fault code. The code says it cant determine if the hood is open or closed. After about 2 weeks the hood latch sensor keeps faulting every 1 second to 4 seconds for an extended period of time.

THE REAR DEFROSTER LIGHT IS FLICKERING. THIS IS A KNOWN RECALL IN CANADA FOR THIS SAME YEAR, MAKE AND MODEL. THIS IS A FIRE HAZARD.

THE RADIO WILL COME ON BY ITSELF WITH THE TRUCK SHUT OFF AND KEYS OUT OF THE IGNITION. THE RADIO CHANGES SONGS ON ITS OWN, FREEZES UP AND REPEATS MUSIC FROM IPOD(S). TRIED 4 DIFFERENT IPODS, 2 DIFFERENT CABLES. GM REPLACED THE HIM MODULE, MAIN COMPUTER, AND RADIO. THEY SAY THEIR PROGRAMMING IS NOT COMPATIBLE WITH APPLE PRODUCTS. TO DATE, THE ISSUE REMAINS WITH THE RADIO AS GM SAYS THEY CAN'T FIX IT. IT HAS BEEN IN THE DEALERSHIP 4 TIMES FOR A TOTAL OF 15 DAYS. THE ISSUE WITH THE RADIO OCCURS BOTH WHEN STATIONARY AND MOVING.