Supersedes Technical Service Bulletin Group 37 number 12-65 dated September 25, 2012. Customer may report harsh shift concerns, but the customer is unable to determine the shift point because there is no gear indicator in the cluster. The concern can be reproduced. No faults are stored. TAC must be contacted before any repairs are attempted. Specific information about the concern must be gathered (as described in the Service portion of this bulletin) before TAC is contacted.
