What is your question?
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What is your question?
I have done some research on this particular transmission and have learned that many people have had spent a lot of money on repairs when it wasn't the transmission it self.... I only have 2 codes showing up in my computer 12 and 21 one is the O2 sensor and the other says that the battery has come undone in the last 5 sec .... can either of these cause it to go into LHM and if so I correct these problems will the computer register it automatically or do I need to have them wiped off of the code list

LHM it will for no reason shift down into 2nd gear and stay locked in 2 wont shift down to 1st just stays in second it is a warning basically that wont leave you stranded it allows you to cripple your vehicle HOME or to a shop.. it is equipped with the Ultradrive 4 speed and as stated before it was the first year using an electronically controlled tranny which all that I have read says that something as small as a bad sensor in the tranny or motor can cause it to go into LHM but none of what I have read has said the most common problem or anything else just that the transmissions were commonly replaced and at the cost of a bad sensor seems to be a lil over kill it still drives well and I am still getting 25 to 30 miles to the gallon so I don't want to junk it for something else yet