Recall N212329840, N182206310, N182206311. We have received these recalls for the heater block heater cord for our 2019 Chevrolet Silverado Duramax Diesel. The dealership removed the cord without having a replacement available. We have made several attempts to have this cord replaced per the recall notice but to no avail. GMC continues to fail to provide a replacement cord or heater block unit. This part is essential for the Duramax diesel engine to perform in cold climates. Without the heater block functioning the diesel engine will not function properly. We feel this is a safety issue for the maintaining the engine as designed and the occupants of the vehicle. The engine may eventually start in cold climates but start to fail as you drive it because the engine block is not warmed and the fuel will gel. This will cause the truck to stop running as you are driving it. We would like to have NHTSA to investigate why the heater blocks/cords are not available.

- Canaan, NH, USA

The truck was issued a recall for the engine blocker heater which was performed. Since that recall was performed I keep getting low coolant warnings on the dash in error. The vehicles was taken back to dealer and everything was checked. They refilled the system just incase there was an air pocket but they warned me about 4 out of 10 people that have the recall performed continually get a low coolant light. The truck was fine for 2 months and now I'm back to having the low coolant light on. The coolant level looks fine. I called the dealer and they said GM knows about it but no fix is available because throwing parts at it like a new reservoir tank and coolant sensor doesn't seem to fix the issue. We're being told to simply ignore the warning displayed on the dash for now. To me it is totally unacceptable that the "fix" for the engine clock heater recall has now created a secondary issue that has not been addressed. Since you have the database of vins that were part of the engine block heater recall I ask that you reach out to those people that have had the fix performed and find out how many are now having a low coolant issue as a result of that repair being made.

- Sykesville, MD, USA

Engine compartment fire with visible flames. Driving on a gravel road approximately 10 miles per hour. Stopped to check out the road conditions ahead and there was smoke coming out of the drivers side front wheel well. Turned the truck off. Opened the hood and there were visible flames behind the engine near the fire wall. We put the fire out with bottled water.

- Rockingham, VA, USA