This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.
So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.
The throttle body gets stuck wide open after the eninge gets up to operating temperature, it will give some warning with the throttle like on off throttle use and no codes show up at all. The risk of everyones is in extrem DANGER. The break are to soft and well not stop unless you put both feet on the break pedal down to the floor. Tranismission can NOT figure out what gear it needs to be in way too many gears and horrible fuel mpg for the 6.6L Duramax L5P. None of the GM dealership will look at the truck unless there is a code or it is happening right there when they look up the trucks VIN.
-??The diesel exhaust fluid heater is a faulty component in the system, there is a back order on the part with no ETA -?? My pickup only does 55MPH right now and soon to do 5MPH you cannot drive on a public road doing 5MPH -??There is thousands of other people having the same exact problem! -??The DEF light is illuminated on my dash along with the check engine light, when you diagnose the error code it comes up with -??P20C1 Reductant Heater C Control Circuit/OPEN-??
- Weldona, CO, USA
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- Rocklin, CA, USA