17NA088

Bulletin No.:
Service Bulletin
Date:
17-NA-088
February, 2019
INFORMATION
Subject:
Brand:
Noise Heard Under Hood Towards Right Side of Vehicle when Putting Vehicle into Park
Model:
Chevrolet
Bolt EV
Opel
Ampera-e
Model Year:
VIN:
from
to
2017
2019
from
to
Engine:
Transmission:
All
All
Involved Region or Country
North America and N.A. Export Regions, Europe
Condition
Some customers may comment on a noise heard under the hood towards the right side of
the vehicle when putting the vehicle into Park.
The noise may be due to the vehicle not being stopped completely and the driver
requesting the vehicle to go into Park.
Cause
Correction
⇒ The Bolt EV and Ampera-e can use the Electric Park Brake, or the braking
system’s hydraulic pump, to apply the brakes to protect the drive unit while
the wheels are turning.
Do not replace any components for this condition since it is considered normal and offers
additional security in certain situations, including a driver park request while the vehicle is
in motion.
Parts Information
No parts are needed for this concern.
Customer Information
Please communicate to the customer this condition is a
normal characteristic of their vehicle. It will not impact
the designed performance or reliability of the vehicle.
Please share this information with the customer,
including a copy of this bulletin.
Version
2
Modified
February 19, 2019 – Added the 2018 and 2019 Model Years and added N.A. Export
Regions.
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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