I had the hum installed by a Verizon wireless rep approximately 3 weeks ago in my 2014 Ford fusion and all was fine till I started having acceleration issues in my car. It first stated the oxygen sensor was bad... so had it replaced. 5 days later the next issue was sent to me...now my camshaft sensor was open...shorted. Had my Ford mechanic tell me that this HUM is causing my transmission module to also misfunction. Now I have spent $1200.00 on repairs to a newer vehicle that had no issues till the HUM installation and am furious. My Ford mechanic told me not to use this HUM system as he has seen many more issues with this OBD2 reader. Called Verizon just to hear them say it's been over 2 weeks and to call Hum with issue. There's nothing they can do. I think I should contact the Attorney General with this issue and see what they can do for me and all other Verizon customers that have had issues.