Volkswagen Jetta 2007–2008 — technical service bulletin
Bulletin V011336 2012810 · NHTSA communication 10156018 · issued Nov 13, 2013
Technical service bulletin
communication type
Power Train
component
2007–2008
model years
8
vehicle entries
Official summary
Technical Bulletin (ECM, TCM Software Update and Valve Body Replacement for Harsh Up - Down Shift from Transmission when Cold): Customer may experience harsh up shift in gears 1-2 and 2-3, or harsh down shift in gears 3-2 and 2-1. The symptom is most noticeable at transmission temperatures below 60°C (140°F). The production solution for this issue was an updated transmission valve body, ECM and TCM software. The updated ECM and TCM software and updated transmission valve body addresses: ? Harsh Up/Down Shift 1-2-3, 3-2-1. This document discusses the "Fault Codes" necessary to diagnosis, and po
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.