RAM

21-017-16 REV. A

2016-07-30 · NHTSA 10084062

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer summary

Original wording in English

"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 IMPROVE 5-3-2 SHIFT (3.0L ONLY) · 6-5 COAST DOWN IMPROVEMENT (3.0L ONLY) · 2-3 UPSHIFT WITH LESS THAN 30% PEDAL IMPROVEMENT (3.0L ONLY) · CLUTCH C ADAPTION STABILITY IMPROVEMENT (IMPROVES SHIFT QUALITY FOR NEW TRANSMISSIONS ON GEAR SHIFTS THAT USE CLUTCH C) (3.0L ONLY). · GARAGE SHIFT TO D IMPROVEMENTS (3.0L ONLY). · ROLLING GARAGE SHIFT IMPROVEMENTS (3.0L ONLY). · IMPLEMENTATION OF END OF LINE (EOL) ADAPTION TO IMPROVE SHIFT QUALITY ON BRAND NEW TRANSMISSION. · DIAGNOSTICS IMPROVEMENTS (3.6L AND 5.7L). · IMPROVE SHIFT QUALITY ON BRAND NEW TRANSMISSION (5.7L ONLY). · IMPROVEMENT TO FIRST 1-2 SHIFT AFTER START (5.7L ONLY). · IMPROVEMENT TO 1-2 SHIFT, ESPECIALLY FOR COLDER OPERATING TEMPERATURES (5.7L ONLY). · 2-3 SHIFT FEEL IMPROVEMENT ESPECIALLY FOR COLDER OPERATING TEMPERATURES (5.7L ONLY). · COASTDOWN SHIFT IMPROVEMENTS (6-5, 5-4, 4-3, 3-2, 2-1) (5.7L ONLY). · COASTDOWN SHIFT FEEL REFINEMENT FOR DOUBLE DOWNSHIFTS (5.7L ONLY). · KICKDOWN IMPROVEMENTS FOR THE FOLLOWING SHIFTS (7-6-5-4-3, 8-6-5-4, 6-3-2, 5-3-2, 4-2) (5.7L ONLY). · IMPROVEMENT TO 4-2-1 (5.7L ONLY).** · IMPROVED 7TH GEAR UPSHIFT TIMING. · DOWNHILL ENGINE BRAKING IMPROVEMENTS."

Repeated filings are grouped only when make, bulletin number, publication date and complete summary agree. Original record numbers are retained. Older publications remain available, and an explicit later version is shown when established. Pre-1994 vehicle associations are separated from default results; an unspecified year does not mean all model years apply.