Transmission Gear Slipping problems of the 2019 Chevrolet Silverado 1500

While taking off fist shift from 2nd to 3rd gear trans slips to the point of losing forward momentum for several seconds. Multiple times in shop and failed to duplicate problem. Happens daily.

Vehicle is producing a hard shift between 1st & 2nd gear primarily on cold starts. More recently is has been doing more through out the day but not as serve. This started around 7500 miles, currently at 23,000+. The vehicle has now been to three dealers (6+ attempts) with no resolution. One dealer took the valve body off for inspection and cleaning. Other dealers have tried reprogramming. Last attempt at repair was the week 8/25/2020 with no resolution as they could not duplicate the issue (had the vehicle for a week). The next day I experienced the harsh shift twice in one day. I also experience transmission slippage at constant speeds between 45 & 60mph. A bulletin came out from gm the week of 8/25/2020 indicating note to repair/replace the transmission as this is normal. How is this normal when it shift so hard it through the occupants forward and rearward in the seat. How is this safe for a young child/toddler? this has the potential to cause whiplash in younger children. I have in firm believe this is a cause for my neck and shoulder pain. As an added note: I have been working with the gm executive resolution team on this issue and again no resolution. I am also experiencing an issue with the parking brake coming on by itself when the vehicle is completely off and the key out of the vehicle. Again dealers cannot duplicate even though one service rep witnessed it while dropping the vehicle off for service. This is a safety issue for anyone performing brake service as the brake could activate and cause a pinch point. Overall I have several other electrical issues regarding radio, dic display & cruise control. Only the dic display has been corrected. I also have had leaking rear slider and squeaks in the front left dash, right front floorboard and upper lh b-pillar. I also had the left dash panel replaced due to a broken tab. Video upon request.

When cold, the transmission has a hard slip when shifting between 1st and 2nd gear. Usually happens in the morning when I am leaving my house. On icy/snow covered road it will cause the rear wheels to lose traction. Thus creating a safety hazard for me, other vehicles or pedestrians on the roadway.

The contact owns a 2019 Chevrolet Silverado 1500. The contact stated that after starting the vehicle after the vehicle had been parked for an extended period, the transmission slipped. The contact stated that after depressing the accelerator pedal, the transmission failed to respond. The contact stated that after releasing the accelerator pedal and waiting for several seconds the vehicle operated as designed. The vehicle was taken to serpentini Chevrolet of west lake (25100 detroit rd, westlake, OH 44145, (440) 740-3208) to be diagnosed. The mechanic was unable to retrieve a fault code or duplicate the failure. The contact sought a second opinion from another dealer and was informed that the vehicle operated as designed. The manufacturer was contacted and informed of the failure. The failure mileage was 300.