RAM 1500 2016 — technical service bulletin
Bulletin 21-017-16 REV. A · NHTSA communication 10084062 · issued Jul 30, 2016
Technical service bulletin
communication type
Electrical System
component
2016
model years
1
vehicle entries
Official summary
"flash: transmission shift and drivability enhancements this bulletin involves reprogramming the transmission control module (tcm) with the latest available software. Some customers may experience a malfunction indicator lamp (mil) illumination. Upon further investigation, a technician may find the following diagnostic trouble code (dtc) stored in the tcm memory: · p0731 - gear ratio error in 1st. The following enhancements are included in the software update: · **2-1 coast down improvement (3.0l only). · 3-2 coast down improvement (3.0l only). · improvement to 5-3 downshift with pedal to impr
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.