Vehicle: 2017 Chevy Traverse, AWD, V6-3.6L, Automatic Transmission/Transaxle

Mileage: 133,086 miles

Problem: The shop replaced a transmission on a Chevy Traverse and then received a "Speed Limited to --- MPH" message on the dash when the transmission was put into gear. The technician also noticed that there was no throttle response when in gear.

Case Details: Calling ALLDATA Tech-Assist provided an answer. The consultant said that, if a new transmission control module (TCM) had been installed, the new module had to be reprogrammed.

NOTE: The Reset Transmission Adapts procedure must be performed when one of the following repairs have been made to the vehicle. Failure to perform the procedure after one of the following repairs may result in poor transmission performance, as well as transmission DTCs being set:

• Transmission internal service/overhaul
• Valve body repair or replacement
• Control solenoid valve assembly replacement
• TCM software/calibration update
• Any service in response to a shift quality concern

Confirmed Repair: The shop sent the vehicle to the local dealer to get the TCM programmed. When it came back, the Traverse ran and shifted perfectly. Problem solved!