The truck shudders while accelerating
Twice now my 2017 w/~41000 miles has gone into instant, no warning or grace period, but an instant drop to a forced 10 mph in the middle of traffic, this last time on a highway with no shoulders during rush hour. the three codes thrown the first time (i don't have the codes from the second time but the dealer is ordering a new ecm based on the u0401 code): rc (radio controls): b1325 - control module power circuit - low voltage ebcm (electronic brake control module): u0401 - invalid data received from engine control module - invalid data ecm (engine control module) p200c diesel particulate filter (dpf) high temperature along with the codes the check engine, stablitrak, and traction control lights came on - however braking was not affected! regardless, this programmed 'limp' mode is insanely reckless with total disregard for the safety and welfare of the vehicle occupants, there is absolutely no safe place or reason to deliberately cripple a vehicle while in traffic! some european manufactures at least give you a warning with several engine restarts to let you drive normally to safety and then a dealer for service ' but apparently emissions laws in the us take precedence over human life. limp mode can be disabled for emergency vehicles but the dealership told me it was illegal for them to do it for me. the dealership has been great but limited to what they can do because of gm requirements. they are currently looking into the problem and has ordered a new ecm as a second phase in troubleshooting the issue (first was reprogramming the ecm) however there is still no excuse for forcing a vehicle into limp-mode while in use - i have lost all faith in this vehicle and gm and cannot trust it for my own yet families safe use.
I got a check engine light while and engine goes into reduced power mode. you can't drive in reduced power mode! i have to clear it to move the truck. i did a scan which showed a p2138 code. but its just in memory and the dealer wont fix it unless its an active code but can't drive to the dealer in reduced power mode. its a catch 22
Tl* the contact owns a 2017 chevrolet colorado. while driving various speeds, the contact smelled an abnormal odor coming from the air vents. the vehicle was taken to hurd auto mall (1705 hartford ave, johnston, ri, 401-372- 3051) to be diagnosed, but the failure could not be duplicated. the vehicle was not repaired. the manufacturer was notified of the failure and provided case number: 9-4995645432. the failure mileage was approximately 8,930.
Tl* the contact owns a 2017 chevrolet colorado. the contact stated that when driving at an unknown speed, the engine hesitated without warning. the vehicle was taken to the star chevrolet dealer (724-790-2046, located at 5200 us-30 c, greensburg, pa 15601) where the transmission fluid was replaced. the failure recurred and the same technician replaced the tort converter. the failure recurred and when the vehicle was taken back to the same dealer, the technician stated that the vehicle was performing as designed. the manufacturer was made aware of the failure and stated that the issue would be investigated. the contact was not called back. the vehicle was not repaired. the failure mileage was 18,000. *jb
Tl* the contact owns a 2017 chevrolet colorado. while driving 70 mph, the contact's daughter-in-law plugged in her cell phone to the charging unit. shortly after, the vehicle decelerated, yet the rpms increased without warning. the vehicle was towed to kreigers chevrolet buick (2113 11th st, dewitt, ia 52742, (563) 659-3225) to be diagnosed, but no failure codes could be located. the vehicle was repaired by an independent mechanic, but the failure recurred. the vehicle was taken back to the dealer for inspection and repair. the manufacturer was not made aware of the failures. the failure mileage was 11,300. *tt consumer stated first time it shut down changed out trans control module, second time stopped at the stop sign by would not move, dealer thought it was the transmission. so after many tries dealer replaced it. after it was replaced it failed two more times. consumer then pulled to the road and the door locks kept locking and unlocking. this is two months in.*jb
In cold temperatures that the northern states experience (around 4 degrees f) the truck will intermittently die in the middle of the road while driving. complete power loss with no warning, which seems to happen at any time. when the weather is above 10f consistently it seems there are no issues. extremely dangerous and can leave you suddenly without power while driving.