2014 - 2016 Corvette: Service Bulletin: #17-NA-278: Convertible Top Creak or Snap Noise While Driving


#17-NA-278: Convertible Top Creak or Snap Noise While Driving - (Aug 29, 2017)

Subject Convertible Top Creak or Snap Noise While Driving

Brand:

Model:

Model Year:

VIN:

Engine:

Transmission:

from

to

from

to

Chevrolet

Corvette Convertible

2014

2016

   

All

All

 

Involved Region or Country

North America, Japan, Europe, Middle East, Russia

Condition

Some customers may comment on hearing a creak or snapping noise from the convertible top while driving their vehicle. The noise may be loudest when the vehicle has sat in the sun for a length of time.

Cause



The cause of the condition may be that the fasteners (1) at the ends of the #3 Bow (2) may have lost torque.

Correction



Following the Service Procedure below, remove the original smaller screws and install the new larger M6 screws referenced in the Part Table.

Service Procedure


Warning: Due to bleed off of the hydraulic pressure, the folding top will have to be supported or held in mid-position by an assistant. Manual operation of the top cannot be attempted for at least 5 minutes from the last time of activation.

    1. Power the folding top into the mid-open position.

    1. Position the top to best reach under the headliner to access the 3 retaining screws on each end of the #3 Bow.

Note: It will be necessary to use a small wrench or tool similar to the graphic example above, in order to access the screws.


Important: Replace the screws one at a time. DO NOT remove or loosen all 3 screws on one side, at the same time.

  1. Starting on either side, replace the current M5 retaining screws with the new M6 self threading screws.
    Tighten
    Tighten the screws to 3 Y (27 lb in).
  2. Repeat and replace the 3 screws on the opposite side.
  3. Ensure proper operation of the folding top.
Parts Information

Causal Part

Description

Part Number

Qty

X

BOLT, F/TOP FRT LAT STKR

11549154

6

Warranty Information

For vehicles repaired under the Bumper-to-Bumper coverage (Canada Base Warranty coverage), use the following labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information.

Labor Operation

Description

Labor Time

6080238*

#3 Bow Retaining Screws Replacement

0.6 hr

*This is a unique Labor Operation for Bulletin use only.



Article ID: 1381
Created On: Mon, Sep 4, 2017 at 8:36 AM
Last Updated On: Mon, Sep 4, 2017 at 8:36 AM

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