17NA133

Bulletin No.:
Service Bulletin
Date:
17-NA-133
February, 2019
TECHNICAL
Subject:
No Propulsion, Malfunction Indicator Lamp, Battery Cut Off Indicator, and Shift to Park
Messages, with DTC P0A5E, P0A61, P0A64, P0A67, P0A6A or P0A6D Set
Brand:
Model:
Cadillac
CT6
PLUG-IN
Model Year:
VIN:
from
to
2017
2017
from
Engine:
Transmission:
HP9
MRD
to
Involved Region or Country
North America
Additional Options
Equipped with Electric Propulsion and Auto Electric Transmission (RPO HP9 and MRD)
Condition
Some customers may comment on one or more of the following conditions:
• Loss of propulsion.
• Malfunction Indicator Lamp illuminated.
• Battery cut off lamp illuminated.
• Shift to park lamp illuminated.
During diagnosis a technician may find one or more of the following DTCs set:
• P0A5E
• P0A61
• P0A64
• P0A67
• P0A6A
• P0A6D
Cause
This may be due to open welds or cold welds on the flex lead wires for the electric
motors.
Correction
Replace the transmission assembly.
Service Procedure
If you encounter a vehicle with the above concern,
replace the transmission assembly. Refer to
Transmission Replacement in SI.
Version
2
Modified
February 04, 2019 – Removed the Note referring the Technician to PIP5479 for
diagnostics and ordering instructions prior to contacting TAC.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these
technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper
service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a
job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your
vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the
information.
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