Three problems related to noises during shifting 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.
When I opened doors the fuel pump turns on, while I'm driving it shifts and runs funny and you hear popping noises. The guages mess up and radio turns on and off. Like its being hacked.
Squeaking noise under box. Dealer took 2 months to get a replacement leaf shackle for left side. It did stop the noise. My transmission has a hard shift in gears when taking off and coming to a stop. Transmission seems to hang up shifting from low gear t a higher gear and does the same when coming to a stop. Seems to be getting worse. New truck, now has 21,000 miles but worst investment I have made switching from a foreign truck back to made in America. This hard shifting takes place when starting off or coming to a stop on any highway or street.
In may 2018 I purchased a new chevy silverado lt z71 pu. I live in colorado and when I drive the truck down the I-70 mountain pass the transmission is downshifted beyond what io would call a safe down shift. Im traveling down the pass, just coasting, down hill assist mode is off @ roughly 55 mph the transmission down shift hard. The rpm goes from ~1850 to ~3800 rpm. The engine and transmission and engine both make a lot of noise when this happens. I traveled the pass about 8 time now and the truck does this funny shift everytime and I have picture showing 4 events. I've taking the drive into the dealer and since the computer doesn't log a error code the dealer doesn't know what to do. This past week they gave another 2018 p/u with the same tranny and engine and that truck did not do the same downshift. I believe there is something wrong with my truck and also if this event happened in the winter on a snowy road the truck would spin out of control and cause a accident and is a huge safety concern. I also filed a complaint with gm but they are really not help to resolve this problem. The dealer looked at the truck again today, no codes recorded, the reset the transmission memory today to try and satisfy my need to do something. I now waiting to hear back from the dealer on the next steps. I will also call gm again to give them this information. I am attaching picture that clearly show this problem. I also given the dealer the same pictures.