Sorry, the NHTSA has not posted this TSB document yet.
You can still get the detailed info from Chevrolet for this TSB. Call your local Chevrolet dealer's service department & ask for a copy of TSB# 17-NA-171.
Hesitation, Stalling, Engine Speed Flare While Coasting, Unintended Acceleration Feel
During a Parking Lot Maneuver, Reduced Surge in Low Speed Maneuvers, Stumble, Harsh Tip-In/Tip-Out, Park-Reverse-Drive Shift Concerns, Harsh Shifts, Erratic Shifts, Engine Vibration, Vibration, Buzz and/or Humming from Steering Wheel, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0097, P054F, P24B1, P24C7, P0128, P2BAA, P2635, P11CC, P10D1, P0483, P2636, P0181, P22FE, P0263, P0266, P0269, P0272,
P0275, P0278, P0281, P0284, P040C, P040D, P041C, P041D Set
Cause This condition may be caused by an anomaly in the Engine Control Module (ECM) and the Transmission Control Module (TCM).
Note: It is important that both the ECM and TCM are updated to the latest software. Not
updating both modules may result in additional undesired vehicle performance. If the
ECM and TCM have the latest calibrations, refer to SI for the DTC set or existing
condition.
Validate the ECM and TCM have the latest software calibration.
• If the ECM and TCM are not at the latest calibration, using TIS2Web, select (K20/K71) Engine and Transmission Control Module.
⇒ Both modules must be reprogrammed sequentially to the latest software calibration available.
• If the modules have the latest calibrations, refer to SI for the DTC set.
