B19-017

Service Bulletin
19-017
November 19, 2019
Version 1
Buzzing or Whining When Adjusting Front Seat Forward and Backward
AFFECTED VEHICLES
Year
Model
Trim
VIN Range
2014-19
MDX
ALL
ALL
2017-19
MDX Sport
Hybrid
ALL
ALL
2015-19
TLX
ALL
ALL
SYMPTOM
There is a loud buzzing or whining when adjusting the driver's or front passenger's seat forward and backward.
POSSIBLE CAUSE
The flex cable in the seat adjustment mechanism is not correctly lubricated.
CORRECTIVE ACTION
Replace the flex cable assembly.
PARTS INFORMATION
Part Name
Order Part Number
Quantity
Flex Cable Assembly
81656-T2F-A31
1
Part Name
Part Number
Quantity
Snap-On Plastic Trim Tool (or equivalent)
SILTRIMTL10
1
TOOL INFORMATION
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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WARRANTY CLAIM INFORMATION
The normal warranty applies.
Operation
Number
Description
Flat Rate
Time
Defect
Code
Symptom
Code
Template
ID
Failed Part Number
8511J5
Replace the driver's
seat flex cable
assembly.
0.5 hr
07409
04201
B19017A
81526-TYR-A61
8521J2
Replace the front
passenger's seat flex
cable assembly
(includes weight sensor
operation check).
0.6 hr
07409
04201
B19017B
81205-TZ5-A03
Skill Level: Repair Technician
REPAIR PROCEDURE
1. Remove the seat track end covers to expose the seat mounting bolts.
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2. Remove the four seat mounting bolts.
3. Prepare the seat for removal.
•
Adjust the seat slide to the middle of its travel.
•
Raise the seat to its maximum height (driver's seat only).
4. Write down the client's radio station presets on the repair order.
5. Disconnect the 12-volt battery.
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6. Tilt back the entire seat and disconnect the seat harness.
7. Insert a plastic trim tool or flathead screwdriver through the bracket access holes one at a time until the cable is
released from the bracket.
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8. Disconnect the flex cable from the motor side first by gently pushing in on the motor at the cable end to disengage it
from its mounting bracket. This will help when removing and replacing the flex cable assembly.
NOTE
The motor does not need to be completely removed. Be careful not to damage the motor mounting tabs on the
bracket.
9. Disconnect the other end of the flex cable assembly from the seat rail gearbox side. Do not bend or kink the cable.
NOTE
The cable may be tight in the gearbox. Use needle nose pliers to remove the cable.
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10. Install the new flex cable in the reverse order of removal. Start by inserting the cable into the seat rail gearbox side,
then fully insert the other end into the motor.
NOTE
Make sure to not bend or kink the cable during installation.
11. Snap the cable end of the motor back into its mounting bracket, and make sure the flex cable is fully inserted and
horizontal.
12. Center the flexible plastic tube on the flex cable.
13. Snap the flex cable assembly back into the plastic bracket, and make sure it is straight. If the cable is not straight
and flat, it will make noise when the seat is adjusted.
14. Connect the seat harness and harness clip.
15. Connect the 12-volt battery.
16. Install the seat, then hand tighten the bolts.
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17. Torque the bolts to specification as shown.
18. Check the seat for proper operation. Make sure the buzzing or whining noise is gone.
19. Install the seat track end covers.
20. Using the i-HDS, do the Front Passenger's Weight Sensor Operation Check (only if the passenger seat flex cable
assembly was replaced).
21. Enter the radio station presets from step 4.
END
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