My 98 Z71 350/4L60E seemingly went into neutral the other day and I had to get home in 2nd gear. I had no 3rd or 4th speedo went to zero anti lock brake light came on. I’ve learned the Tran went into “limp mode” and I am trying to understand why. The previous day I replaced the battery with a ACDelco that turned out bad from the parts store it only had 10.3 volts. I did not realize it was bad until I hooked it up and tried to start the truck. Of course it did not have enough volts to start the truck. I traded it for a good battery and got it replaced. This limp mode ordeal happened the first time I drove the truck after changing the battery. My question is did the low voltage from the bad battery cause a fault code that still remains that is causing my trans to be confused and be in limp mode? If so how do I reset this? This truck is a gem it only has 21,800 miles on it and has never done this before. Any help or advice is appreciated.
Charlie I will get a scanner and check codes but I don't expect there will be any codes since it never had the check engine light come on. Only the ABS light came on. Now I cranked it in the garage and the ABS light is off as well. I'm hoping the low voltage from the first bad battery I bought caused the issue.