2019 Chevrolet Silverado 1500: engine overheating

Filed Nov 2, 2026 · Electrical · TX

My 2019 Chevrolet Silverado 1500, VIN [XXX], with 137,640 miles, experienced repeated Battery Saver warnings, severe charging voltage fluctuations dropping as low as 9 volts, and intermittent reductions in engine power and RPM while driving. Upon inspecting the alternator, I discovered severe overheating at the positive battery cable (B+) connection. The plastic insulation surrounding the alternator terminal had melted away, and the charging cable insulation was brittle and heat-damaged. I have photographs documenting the damage. I reviewed GM safety recall N192273510 (the federal safety agency 19V888), which describes loose alternator B+ connections causing intermittent electrical failures, arcing, overheating, possible engine stalling, and fire hazards. The symptoms and physical damage described in this recall closely match what occurred on my vehicle. However, both Chevrolet and the federal safety agency indicate that my VIN is not included in the recall. I contacted GM Customer Assistance and received case number [XXX] after requesting escalation. GM advised that my case would not become active until a dealership inspected the vehicle. A Chevrolet dealership quoted $1,345 to replace the alternator and positive charging cable without physically inspecting the truck. Towing and diagnostic expenses are estimated at an additional $400. I am concerned that other 2019 Silverado vehicles excluded from recall 19V888 may experience the same potentially dangerous electrical failure. I request that the federal safety agency investigate whether the existing recall population should be expanded to include additional affected vehicles. The vehicle has not been repaired, and the damaged components remain available for inspection. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 30, 2026 · Engine, Fuel system · IN

AFM causing engine tick. I am reporting a radiator failure on my 2019 Chevrolet Silverado 1500 equipped with the 6.2L V8. The vehicle developed an active coolant leak from the radiator assembly. The coolant reservoir level dropped significantly after normal driving, and coolant was visibly leaking and collecting underneath the vehicle. The truck initially began running warmer than normal, approximately 215–220°F, before the leak was fully identified. After topping the system with the correct DEX-COOL coolant, the coolant level continued to drop and an external leak became clearly visible. The vehicle was subsequently parked to avoid engine overheating or further damage. The original radiator carries GM part number 84152439. I have since been advised that the current GM replacement radiator is part number 85575815. I was also informed by GM dealership personnel that radiator failures involving this application are currently being investigated. My concern is that a sudden radiator failure can result in rapid coolant loss and overheating, potentially causing engine damage or vehicle disablement while driving. This is particularly concerning because the temperature gauge may initially remain near normal even while coolant is being lost. I am requesting that the federal safety agency review radiator failures on 2019 Chevrolet Silverado 1500 models, particularly vehicles equipped with the 6.2L engine and heavy-duty/enhanced cooling package, to determine whether there is a pattern of premature radiator cracking, tank/seam failure, or other coolant-loss defects that warrant a safety investigation, service campaign, or recall.

Filed Jun 23, 2026 · NY · fire

While flat towing my pickup truck behind my motorhome, on interstate 94 eastbound, in Minnesota I noticed smoke on my screen in the motorhome back facing camera. I safety pulled over to a truck rest area in Avon Minnesota. I went to investigate and realized that the pickup truck had flames coming from underneath the hood. Because of the fire and heat I wasn’t able to release the pickup truck from the motorhome which ultimately caused the Motorhome to catch fire as well. Police and fire department were called and both the Motorhome and pickup truck were totaled. My insurance company has possession of both vehicles. I previously had electrical problems with the pickup truck and took it to the Chevy dealership to address the issue. Evidence of module overheating with traces of burn were found on one occasion. I’m uploading photos of the police report and work orders from the dealership. No one was injured but all of our belongings were destroyed or damaged from the fire. We were left with nothing but what we had on at the time.

Filed May 13, 2026 · Engine · TN

own a 2019 Chevrolet Silverado 1500 with approximately 76,896 miles. The vehicle experienced sudden coolant loss and overheating while driving and became disabled to the point it would not restart. The vehicle required towing to a repair facility. The symptoms appear substantially similar to known GM cooling system/oil cooler line issues addressed in other Silverado programs and complaints, however my VIN is excluded from coverage. I am requesting review for goodwill assistance and escalation due to the nature of the failure, the maintenance history of the vehicle, and the safety concern created by sudden overheating and loss of power

Filed Apr 9, 2026 · Transmission · 128,000 miles · NC

The contact owns a 2019 Chevrolet Silverado 1500. The contact stated that while operating the vehicle, the message "Transmission Fluid Overheat" was displayed. The vehicle was taken to the local dealer to be diagnosed, and it was determined that the TCM had failed and needed to be replaced. The TCM was replaced, and the vehicle was repaired. After retrieving the vehicle, the vehicle failed to immediately reverse as needed. The vehicle hesitated before reversing. The failure later occurred while driving forward, and the vehicle jerked while driving from being stationary. The contact stated that the failure was also present during cold starts. The vehicle was taken back to the dealer to be diagnosed, and it was determined that the transmission needed to be replaced. The vehicle was not yet repaired. The manufacturer was not yet contacted. The failure mileage was 128,000.

Filed Dec 29, 2025 · Engine, Wheels · TX

I am writing to formally express my frustration regarding the ongoing issues with my vehicle. The vehicle continues to overheat, the check engine light repeatedly comes on, and it has cut off unexpectedly. The tire air pressure sensors as well.These issues have persisted despite multiple repair attempts. I initially brought the vehicle to the dealership in December 2024, and again in March 2025 and now the vehicle is having the same issues to date December 2025. On both occasions, the vehicle remained at the dealership for over a month for repairs. Unfortunately, the problem has not been resolved. Each time I inquire, I am given different explanations as to why the issue cannot be fixed, which has been extremely frustrating and concerning. Additionally, I am being charged for services that I do not fully understand or agree with, especially given that the original problem still exists. Due to the lack of resolution, I have also contacted GMC directly to file a formal complaint. At this point, the ongoing delays, lack of clear communication, and unresolved mechanical issues are unacceptable. I requested a clear explanation of all charges, as well as a concrete plan outlining the steps needed to finally fix my vehicle. Please provide the appropriate point of contact and advise on how this issue will be resolved promptly. I expect immediate attention to this matter. Thank you.

Filed Aug 27, 2024 · Transmission · 172,000 miles · TN

The contact owns a 2019 Chevrolet Silverado 1500. The contact stated while driving at an undisclosed speed, the vehicle unexpectedly downshifted with the transmission overheating message displayed. The vehicle was able to restart however, the failure recurred. The vehicle was taken to an independent mechanic where the vehicle was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 172,000.

Filed Jan 22, 2024 · Electrical · 170,000 miles · CA

The contact owns a 2019 Chevrolet Silverado 1500. The contact stated while driving at an undisclosed speed and attempting to accelerate, the vehicle lost motive power with the message "Unable to accelerate above 25 MPH" displayed. The vehicle then indicated that the transmission was overheating. The check engine and ABS warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the battery, requiring that the battery be replaced. The vehicle was repaired, but the failure reoccurred. After investigating the failure, the contact related the failure to Technical Service Bulletin: 20-NA-149. The manufacturer was not notified of the failure. The failure mileage was 170,000.

Filed Feb 6, 2023 · Engine · 86,438 miles · IL

The contact owns a 2019 Chevrolet Silverado 1500. The contact stated that after the vehicle was taken to a local dealer for routine oil change services, he was made aware of a coolant leak. The contact was informed that the oil coolant line needed to be replaced. The contact stated that no warning lights were illuminated and that the vehicle was not repaired. The manufacturer was made aware of the failure and a case was opened. The approximate failure mileage was 86,438.

Filed Mar 25, 2022 · Visibility · NH

Today March 25 2022 around 07:20 driving to work, the passenger side stationary panel of a 3 panel sliding window exploded with a loud noise. The window is totally shattered, but stayed in place. Little cubed glass is starting to fall from around the bottom edge. A month ago, I had experienced a crackling arcing sound coming from the defrost on that same panel. I took it into Quirk Chevrolet, Manchester NH to have it looked at. they stopped the arcing and released the vehicle back to me and fixed under "service bulletin". I am finding many other individuals experiencing this same exploding glass issue. There is a bulletin out concerning this particular model and yr truck for sliding glass window defroster overheating issues. I am hearing that the dealer is not addressing this as an issue and not remedying this under warranty. I have only 28500 miles on the truck.