MC - SB - Safety

GL1800 #21
AUGUST 2014
Service Bulletin
American Honda Motor Co., Inc.
SAFETY RECALL
2001-2012 GL1800 DRAGGING REAR BRAKE (INTERIM BULLETIN)
Honda has determined that, in some cases,
the secondary master cylinder repair campaign conducted since 2011 (S/B GL1800 #20)
was not sufficient to prevent the rear brake
from dragging. Under certain conditions there
is still a possibility that component malfunction within the combined braking system may
cause the rear brake to drag. A dragging rear
brake increases the risk of a crash and may
generate enough heat to cause the rear brake
to catch fire.
Currently, a final repair remedy is not available, however this Service Bulletin will be
revised to include it in the near future.
If any customer, whose vehicle falls within the
affected VIN range, requests an inspection
for dragging brakes, follow the instructions
in the REPAIR VERIFICATION section of this
bulletin.
CUSTOMER NOTIFICATION
AFFECTED UNITS
2001-2010 GL1800/A
All units and types within the above model
year range.
2012 GL1800/A: All types, within the
following VIN ranges:
Type
VIN Range
IVA
JH2SC68G*CK000001 thru JH2SC68G*CK002608
VA
JH2SC68H*CK000001 thru JH2SC68H*CK001746
VIIA
JH2SC68L*CK000001 thru JH2SC68L*CK001294
VIIIA
JH2SC68M*CK000001 thru JH2SC68M*CK000164
(*) denotes check digit
DEALER INVENTORY
If you suspect any new or used units within your
inventory has a problem with dragging brakes,
start with REPAIR VERIFICATION.
Around the end of August 2014, Honda will
mail a letter to all owners of affected vehicles
advising them to perform pre-ride and postride inspections on their motorcycle to check
for brake dragging. Customers who suspect
their motorcycle’s brakes are dragging are
advised to make an appointment with a Honda
motorcycle dealer for further inspection.
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©2014 American Honda Motor Co., Inc. – All Rights Reserved
MTB 13938-15110 (1407)
CUSTOMER INFORMATION: The information in this bulletin is intended for use only by skilled technicians who have the proper tools,
equipment, and training to correctly and safely maintain your Honda. These procedures should not be attempted by "do-it yourselfers," and
you should not assume this bulletin applies to your Honda, or that your Honda has the condition described. To determine whether
this information applies, contact an authorized Honda dealer.
GL1800 #21
AUGUST 2014
REPAIR VERIFICATION
Before you begin the inspection procedure,
check if this and the previous brake recall
have been performed on the unit.
Check the frame for a punch mark(s) indicating that S/B GL1800 #20 and S/B GL1800 #21
has been performed on this vehicle.
Remove the right engine side cover.
to S/B GL1800 #20, complete S/B GL1800
#20 first and note the following:
If the Secondary Master Cylinder (SMC)
fails the inspection, contact TechLine.
If the SMC passes the S/B GL1800 #20
Inspection, proceed to the INSPECTION
PROCEDURE of this bulletin.
• If there are one or two punch marks
and the rear brake is locked or obviously
dragging, contact TechLine for the Interim
Repair Procedure manual.
INSPECTION PROCEDURE
Look for a punch mark(s) on the right frame
spar, just above the rear master cylinder reservoir as shown.
PUNCH MARK(S)
TRIKE CONVERSIONS or MODIFIED
BRAKES:
If the vehicle is a trike conversion, or has a
modified, disabled, or removed secondary
master cylinder and the SMC is non-functional, note these facts on the R.O. and contact TechLine for further instructions.
MOTORCYCLES:
With the motorcycle in neutral on its centerstand, depress with normal foot pressure and
slowly release the brake pedal five times, then
with the pedal released, wait five seconds,
then try to rotate the rear wheel as shown.
• If there are two punch marks and there
is no customer concern about dragging
brakes, no further action is necessary.
• If there are two punch marks and the
customer has a concern about dragging
brakes, contact TechLine.
• If there is only one punch mark and the
customer has a concern about dragging
brakes, proceed to INSPECTION PROCEDURE.
• If there is no punch mark, the vehicle
has not been inspected/repaired according
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• If the rear wheel drags or is locked,
contact TechLine for interim repair procedures.
• If there are obvious visual indications of a dragging rear brake (blue
rotor, excessive brake component wear
considering mileage), take photos of any
©2014 American Honda Motor Co., Inc. – All Rights Reserved
GL1800 #21
AUGUST 2014
damaged parts, note your findings on the
repair order, and contact TechLine for
interim repair procedures.
• If the rear wheel rotates freely, confirm the brake performance by test riding
the vehicle for 15 miles at varying speeds.
Be sure to firmly apply both front and rear
brakes several times during the test ride to
get heat into the brake components and
move fluid through the system. After the
test ride, perform the INSPECTION PROCEDURE one more time from the beginning.
IDENTIFICATION
Remove the right engine side cover.
- If after the test ride and second inspection procedure the rear wheel drags or is
locked, contact TechLine for interim
repair procedures.
- If after the test ride and second inspection procedure the rear wheel rotates
freely, apply the IDENTIFICATION punch
mark to the frame and then return the
vehicle to the customer. Advise the customer to continue performing pre-ride
and post-ride inspections for dragging
brakes until Honda contacts them about
a final remedy.
After you have completed the inspection procedure, apply a second punch mark on the
right frame spar, just above the rear master
cylinder reservoir as shown.
SECOND PUNCH MARK
TechLine Connect:
iN > Service > TechLine > TechLine Connect
Motorcycle TechLine:
(800) 421-1900, Option 9
WARRANTY INFORMATION
The inspection procedure in this bulletin is
temporary and is subject to change or cancellation when a final remedy is determined.
After inspecting the unit, submit one warranty
claim per unit using the following information.
WARRANTY CLAIM TEMPLATE
Inspection
Template: JG6A
Flat Rate Time: 0.5 hrs.
If TechLine advised you to perform an interim
repair procedure, they will provide you with
claim filing instructions.
©2014 American Honda Motor Co., Inc. – All Rights Reserved
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GL1800 #21
AUGUST 2014
TEXT OF CUSTOMER LETTER
The Customer Letter will appear in this space soon.
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©2014 American Honda Motor Co., Inc. – All Rights Reserved