Bulletin No.: 14620A
Date: September 2014

Recall Bulletin

F/CMVSS NONCOMPLIANCE RECALL
SUBJECT:

Park Brake Cable Not Connected

MODELS:

2015 Chevrolet Corvette

This bulletin is being revised to add the customer letter. Please discard all copies of bulletin
14620.
It is a violation of Federal law for a dealer to deliver a new motor vehicle or any new or used item
of motor vehicle equipment (including a tire) covered by this notification under a sale or lease
until the defect or noncompliance is remedied.
All involved vehicles that are in dealer inventory must be held and not delivered to customers,
dealer traded, or used for demonstration purposes until the repair contained in this bulletin has
been performed on the vehicle.
CONDITION
General Motors has decided that certain 2015 model year Chevrolet Corvettes may fail to
conform to S7.12 of Federal/Canada Motor Vehicle Standard (FMVSS/CMVSS) 135 (parking
brake). Some of these vehicles have been built without one of the rear parking brake cables
fully seated and engaged. In this condition, the parking brake will only operate on one of the
rear park brake drums leading to a reduction in the parking brake’s operational capability. This
reduction in operational capability may cause the vehicle to roll away if parked on a steep
gradient, which would render a vehicle noncompliant with FMVSS/CMVSS 135 and increase the
risk of a crash.
CORRECTION
Dealers are to inspect, and if required, attach one or both of the rear park brake cables.
VEHICLES INVOLVED
All involved vehicles are identified by Vehicle Identification Number on the Investigate Vehicle
History screen in GM Global Warranty Management system. Dealership service personnel
should always check this site to confirm vehicle involvement prior to beginning any required
inspections and/or repairs. It is important to routinely use this tool to verify eligibility because
not all similar vehicles may be involved regardless of description or option content.
Copyright 2014 General Motors. All Rights Reserved.

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Bulletin No.: 14620A

For dealers with involved vehicles, a listing with involved vehicles containing the complete
vehicle identification number, customer name, and address information has been prepared and
will be provided to US and Canadian dealers through the GM GlobalConnect Recall Reports, or
sent directly to export dealers. Dealers will not have a report available if they have no involved
vehicles currently assigned.
The listing may contain customer names and addresses obtained from Motor Vehicle
Registration Records. The use of such motor vehicle registration data for any purpose other
than follow-up necessary to complete this recall is a violation of law in several
states/provinces/countries. Accordingly, you are urged to limit the use of this report to the followup necessary to complete this recall.
PART INFORMATION
No parts are required.
SERVICE PROCEDURE
Note: The park brake cable attachment at a single rear corner drum in hat may NOT be
installed properly. If rear wheel spin is detected during the inspection, inspect the park brake
cable attachment at the rear corner drum in hat location where the rear wheel spin is detected.

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1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in SI. Ensure that
you can gain access to the ENGINE START/STOP button and electric parking brake (EPB)
button while the vehicle is on a lift. Raise the vehicle enough to ensure the four wheels are
not touching the ground.
2. Turn the vehicle to the ON position (green light on, but engine off) by pressing the ENGINE
START/STOP button. To obtain the ON position without starting the engine, apply the brake
pedal and press the button once to place the ignition system in ON/RUN/START. Release
the button BEFORE the engine begins cranking.
3. Place the vehicle in N (Neutral).
4. Apply the electric parking brake (EPB). The EPB switch is on the center console. The red
parking brake status light will flash and then stay on once the EPB is fully applied.
5. Attempt to spin the left and right rear wheel.

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September 2014

Bulletin No.: 14620A



If no wheel spin is detected, the park brake is installed properly on the left and right side
of the vehicle. Proceed to step 13.



If wheel spin is detected, release the EPB and inspect the park brake cable connection
to the drum in hat on the wheel that spins. Proceed to step 6.

Note: The park brake cable tension is controlled by the electronic park brake (EPB) module.
Tension can be fully released from the park brake cables to allow for service of the park brake
system.
6. Perform a parking brake cable adjuster disabling procedure.
6.1 Turn the ignition switch to the ON/RUN position with the engine OFF.
6.2 Place the transmission in PARK (automatic) or NEUTRAL (manual).
6.3 Apply and hold the brake pedal. The brake pedal must remain applied throughout the
park brake cable tension release process.
6.4 Press and hold down the electronic park brake (EPB) switch approximately 10
seconds.
6.5 Observe the PARK BRAKE lamp on the instrument cluster.
6.6 When the PARK BRAKE lamp flashes, release then immediately press and release the
EPB switch.
6.7 Release the brake pedal. The parking brake cable tension is fully released.

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7. Remove the parking brake rear cable bolt (1) from the rear suspension knuckle.

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September 2014

Bulletin No.: 14620A

3980209

Illustration shown with wheel and brake rotor off of vehicle. Wheel and rotor removal are
NOT required to insert the parking cable into the actuator lever.

8. Insert the parking brake rear cable fitting (1) into the actuator lever (2). Angle the cable end
rearward into the actuator lever. The cable will snap into the actuator lever. You will hear
and feel the cable snap into the actuator lever.
9. Pull on the cable end to ensure the cable is secure in the actuator lever.
10. Install the parking brake rear cable bolt (1) to the rear suspension knuckle and tighten to 9
Nm (80 lb in).
11. Apply the EPB. The EPB switch is on the center console. The red parking brake status
light will flash and then stay on once the EPB is fully applied.
12. Attempt to spin the rear wheel (s) to ensure the EPB is working properly. If no wheel spin
is detected, the park brake is installed properly on the left and right side of the vehicle.
Apply and release the park brake 5 times to relearn home position of the EPB. Proceed to
step 13.
13. Lower the vehicle. Refer to Lifting and Jacking the Vehicle in SI.
14. Place the vehicle in gear and apply the park brake (if manual) or in Park (if automatic).
15. Turn off the vehicle.
COURTESY TRANSPORTATION – For US and Canada
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within
the warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle
service or some other form of courtesy transportation is available and will be provided at no
charge. Dealers should refer to the General Motors Service Policies and Procedures Manual
for Courtesy Transportation guidelines.

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Bulletin No.: 14620A

WARRANTY TRANSACTION INFORMATION
Submit a transaction using the table below. All transactions should be submitted as a ZFAT
transaction type, unless noted otherwise.
Labor
Code
9100941
9100944
9100945

Description
Inspect Electric Parking Brake – No Further Action Required
Inspect and Repair Electric Parking Brake --- Left or Right
Rear
Inspect and Repair Electric Parking Brake --- Both Sides

Labor
Time
0.3
0.5
0.6

CUSTOMER NOTIFICATION – For US and Canada
General Motors will notify customers of this recall on their vehicle.
CUSTOMER NOTIFICATION – For Export
Letters will be sent to known owners of record located within areas covered by the US National
Traffic and Motor Vehicle Safety Act.
DEALER RECALL RESPONSIBILITY – For US and Export (US States, Territories, and
Possessions)
It is a violation of Federal law for a dealer to deliver a new motor vehicle or any new or used item
of motor vehicle equipment (including a tire) covered by this notification under a sale or lease
until the defect or noncompliance is remedied.
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject
to a recall of this type must be adequately repaired within a reasonable time after the customer
has tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima
facie evidence of failure to repair within a reasonable time. If the condition is not adequately
repaired within a reasonable time, the customer may be entitled to an identical or reasonably
equivalent vehicle at no charge or to a refund of the purchase price less a reasonable allowance
for depreciation. To avoid having to provide these burdensome remedies, every effort must be
made to promptly schedule an appointment with each customer and to repair their vehicle as
soon as possible. In the recall notification letters, customers are told how to contact the US
National Highway Traffic Safety Administration if the recall is not completed within a reasonable
time.
This bulletin is notice to you that the new motor vehicles included in this recall may not
comply with the standard identified above. Under Title 49, Section 30112 of the United
States Code, it is illegal for a dealer to sell a new motor vehicle which the dealer knows
does not comply with an applicable Federal Motor Vehicle Safety Standard. As a
consequence, if you sell any of these motor vehicles without first performing the recall
correction, your facility may be subject to a civil penalty for each such sale.
DEALER RECALL RESPONSIBILITY - All
All unsold new vehicles in dealer's possession and subject to this recall must be held and
inspected/repaired per the service procedure of this recall bulletin before customers take
possession of these vehicles.

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Bulletin No.: 14620A

Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of
mileage, age of vehicle, or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the dealer listing, are to be contacted by the dealer.
Arrangements are to be made to make the required correction according to the instructions
contained in this bulletin
In summary, whenever a vehicle subject to this recall enters your vehicle inventory, or is in your
facility for service in the future, you must take the steps necessary to be sure the recall correction
has been made before selling or releasing the vehicle.

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 tools,
equipment, 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 dealer for information on whether your vehicle may benefit from the information.

We Support
Voluntary Technician
Certification

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September 2014

Bulletin No.: 14620A

IMPORTANT SAFETY RECALL
October 2014
Dear General Motors Customer:
This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act.
General Motors has decided that certain 2015 model year Chevrolet Corvette vehicles fail to
conform to Federal/Canada Motor Vehicle Safety Standard (FMVSS/CMVSS) No.135 “Light
Vehicle Brake Systems”. As a result, GM is conducting a recall. We apologize for this
inconvenience. However, we are concerned about your safety and continued satisfaction with
our products.

IMPORTANT





This notice applies to your GM vehicle.
Your vehicle is involved in GM recall 14620.
Schedule an appointment with your Chevrolet dealer.
This service will be performed for you at no charge.

Why is your
vehicle being
recalled?

Certain 2015 model year Chevrolet Corvette vehicles may fail to
conform to S7.12, “Parking Brake”, of Federal Motor Vehicle
Standard (FMVSS/CMVSS) 135. Some of these vehicles have
been built without one of the rear parking brake cables fully seated
and engaged. In this condition, the parking brake will only operate
on one of the rear park brake drums leading to a reduction in the
parking brake’s operational capability. This reduction is operational
capability may cause the vehicle to roll away if parked on a steep
gradient, increasing the risk of a crash.

What will we
do?

Your GM dealer will inspect, and if required, attach one or both of
the rear park brake cables. This service will be performed for you at
no charge. Because of service scheduling requirements, it is likely
that your dealer will need your vehicle longer than the actual
inspection and service correction time of approximately 45 minutes.

What should
you do?

You should contact your GM dealer to arrange a service
appointment as soon as possible.

Do you have
questions?

If you have questions or concerns that your dealer is unable to
resolve, please contact the appropriate Customer Assistance Center
at the number listed below.
Division

Number

Chevrolet
Puerto Rico – English
Puerto Rico – Español
Virgin Islands

1-800-630-2438
1-800-496-9992
1-800-496-9993
1-800-496-9994

Text Telephones
(TTY)
1-800-833-2438

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Bulletin No.: 14620A

If after contacting your dealer and the Customer Assistance Center, you are still not satisfied
we have done our best to remedy this condition without charge and within a reasonable time,
you may wish to write the Administrator, National Highway Traffic Safety Administration, 1200
New Jersey Avenue, SE, Washington, DC 20590, or call the toll-free Vehicle Safety Hotline at
1.888.327.4236 (TTY 1.800.424.9153), or go to http://www.safercar.gov. The National
Highway Traffic Safety Administration Campaign ID Number for this recall is 14V568.
Federal regulation requires that any vehicle lessor receiving this recall notice must forward a
copy of this notice to the lessee within ten days.
Jim Moloney
General Director,
Customer and Relationship Services
GM Recall #14620