B19-009

Service Bulletin
19-009
March 28, 2019
Version 1
Front Brake Noise and/or Front Brake Judder
This bulletin replaces S/B 17-016, Front Brake Noise (2016-17 RDX), and S/B 17-049, Brake Judder (2013–18 RDX)
AFFECTED VEHICLES
Year
Model
Trim
VIN Range
2013-18
RDX
ALL
ALL
SYMPTOM
The front brakes squeal when lightly applied. There may also be vibration through the steering wheel while braking.
PROBABLE CAUSE
The squeal or vibration in the brake system is caused by uneven pad wear and low brake disc hat rigidity.
CORRECTIVE ACTION
Replace the front brake discs and pads.
NOTE
If the noise is caused by normal pad wear, do not do this bulletin. Continue with normal system troubleshooting.
PARTS INFORMATION
Part Name
Part Number
Quantity
Front Brake Discs
45251-TX4-A50
2
Front Brake Pads
45022-TX4-305
1
CLIENT 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 vehicle. These procedures should not be attempted by “do-it-yourselfers,” and you should not assume
this bulletin applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an
authorized Acura automobile dealer.
©
2019 American Honda Motor Co., Inc. — All Rights Reserved
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TOOL INFORMATION
Tool Name
Tool Number
Quantity
Brake Caliper Piston Compressor
07AAE-SEPA101
1
WARRANTY CLAIM INFORMATION
The normal warranty applies.
NOTE
If the noise is caused by normal pad wear, do not do this bulletin. Continue with normal system troubleshooting.
Operation
Number
Description
Flat Rate
Time
4101F6
Replace the front brake
discs.
0.5 hr
A
Replace the front brake
pads.
0.2 hr
Defect
Code
Symptom
Code
Template
ID
Failed Part Number
00504
03217
B19009A
45251-TX4-A01
Skill Level: Repair Technician
INSPECTION PROCEDURE
1. Did the vehicle come in for a high-pitched brake noise?
•
Yes - Go to REPAIR PROCEDURE.
•
No - Go to step 2.
NOTE
If the noise is caused by normal pad wear, this bulletin does not apply; continue with normal system troubleshooting.
2. Did the vehicle come in for judder or vibration of the steering wheel?
•
Yes - Follow the procedure listed in the table below based on the vehicle and VIN.
•
No - This bulletin does not apply. Continue with normal system troubleshooting.
Year/Model
Trim
VIN
Procedure
2013-15 RDX
ALL
ALL
Go to step 3.
2016 RDX
2WD
5J8TB3...GL012358 and earlier
Go to step 3.
2016 RDX
2WD
5J8TB3...GL012359 and later
Go to FNC INSPECTION.
2016 RDX
AWD
5J8TB4…GL019272 and earlier
Go to step 3.
2016 RDX
AWD
5J8TB4…GL019273 and later
Go to FNC INSPECTION.
2017-18 RDX
ALL
ALL
If the vehicle came in for judder, this
bulletin does not apply. Continue with
normal system troubleshooting.
3. With the vehicle on a lift, remove both front wheels.
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4. Inspect the supplier’s manufacturing date code on the brake discs.
•
If the brake disc hat stamping date is May 27, 2015 or later, and the casting core number in the vent slots is 11
or greater, this bulletin does not apply. Continue with normal system troubleshooting.
•
If the brake disc hat stamping date is earlier than May 27, 2015 or the casting core number is less than 11, go to
REPAIR PROCEDURE.
NOTE
The brake disc hat stamping date may be listed as a Julian date. A Julian date refers to a date that is a combination
of the current year and the number of days since the beginning of the year. In which case, May 27, 2015 will be
15147.
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FNC INSPECTION
NOTE
If the noise is caused by normal pad wear, do not do this bulletin. Continue with normal system troubleshooting.
1. With the vehicle on a lift, remove both front wheels.
2. Check if the vehicle has FNC rotors.
NOTE
•
Keep in mind replacement front discs now come with Ferritic Nitrocarburizing (FNC) surface treatment, which
increases surface hardness and corrosion resistance. These discs can not be refinished and must always be
replaced when out of specification.
3. Does the vehicle have FNC brake discs?
•
Yes - This bulletin does not apply. Continue with normal system troubleshooting.
•
No - Go to REPAIR PROCEDURE.
Page 4 of 5
REPAIR PROCEDURE
1. Replace both front brake discs and brake pads. Refer to the service information for details.
NOTES
•
Keep in mind replacement front discs now come with Ferritic Nitrocarburizing (FNC) surface treatment, which
increases surface hardness and corrosion resistance. These discs can not be refinished and must always be
replaced when out of specification.
•
Make sure the pads are installed correctly. The chamfered inner pads have a wear indicator that should be
installed in the inner position with the indicator facing up.
2. Install all removed parts in the reverse order of removal.
END
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