RCA-38-23-001-1

RCA-38-23-001-1: Inadequate Halfshaft Spline
Interference
Rivian is initiating a customer satisfaction campaign for some model year 2022 R1S and R1T vehicles that may
have been built with inadequate press fit force between the halfshaft splines and the wheel hubs. In some
instances, this condition may result in a loss of torque of the halfshaft bolt and subsequent noise and/or
separation of the bolt and wheel center cap. Without this bolt there may be additional movement of the
components and/or noise but there will be no resulting changes in the performance of the vehicle. Rivian will
replace the halfshaft bolts and torque them to a higher specification to improve the press fit force and bolt
retention. In addition, washers will be installed on the halfshafts to reduce potential noise. Rivian is launching
this campaign for customer satisfaction and to ensure the quality of Rivian vehicles.
Document Type
Customer Satisfaction Campaign
Bulletin
Date
April 10, 2023
Affected Region(s)
USA
Affected Model(s)
R1T, R1S
Model Year(s)
2022
Approximate Build Dates
August 2021 - May 2022
Refer to Open Containments in ServiceOS to
determine if this document applies to a specific
vehicle.
Vehicle System
38 - Front Drive Unit
Minimum Service Location
Mobile
Required Parts
Part Number
Quantity Engineering Name
Service Name/Notes
PT00753512-B
2
TING WASHER; FRONT HALFSHAFT
PT00753511-C
2
TING WASHER; REAR HALFSHAFT
One of the following:
PT00856494-A
As
needed
Molykote M-77
PT00856493-A
As
needed
Molykote Anti-Seize
Molykote 1000
Attention: The parts listed in this table are only for unique steps that are called out in this bulletin.
Some sections of this bulletin might refer to Service Manual procedures which require additional parts.
Always review the bulletin and all potentially related Service Manual procedures before ordering parts
and beginning work.
Required Special Tools:
Tool Number
Tool name
TSN01096-300-A
Ting Washer Installation Tool
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Attention: The special tools listed in this table are only for unique steps that are called out in this
bulletin. Some sections of this bulletin might refer to Service Manual procedures which require
additional special tools. Always review the bulletin and all potentially related Service Manual
procedures before beginning work.
Front Halfshafts
1. Remove: Knuckle, Front, LH (refer to service manual procedure 181020011).
2. Using a nylon mesh scuff pad: Clean the highlighted area(s).
3. Apply grease to the highlighted area(s).
4. Position the washer in the "PRE-BEND" side of the front washer sleeve.
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5. Push the pre-bend tool into the sleeve to bend the washer tabs. Continue pressing until the tabs do not
bend any further.
Tip: If necessary: Use a vise or C-clamp to apply pressure to the pre-bend tool.
6. Position the outer sleeve onto the halfshaft. Make sure that the side of the sleeve labeled "SHAFT SIDE"
points toward the vehicle.
7. Position the washer in the "INSTALL" side of the front washer sleeve. Make sure that the bent tabs point
toward the inside of the tool.
8. Install the front washer sleeve into the outer sleeve. Make sure that the side of the tool labeled
"INSTALL" points toward the vehicle.
9. Push on the front washer sleeve to fully seat the washer onto the halfshaft. If necessary: Use a mallet.
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10. Remove the special tools. Make sure that the washer is fully seated onto the halfshaft. If the washer is
not fully seated, repeat steps 6 - 9.
11. Repeat the steps in this section on the opposite side of the vehicle.
12. Continue to the Rear Halfshafts section.
Rear Halfshafts
1. Remove: Knuckle, Rear, LH (refer to service manual procedure 183225010).
Note: It is not necessary to remove the hub from the knuckle.
2. Using the rear washer sleeve: Repeat steps 2-10 of the previous section on the rear halfshaft.
3. Repeat the steps in this section on the opposite side of the vehicle.
4. Reinstall all components that were removed for access and replace all non-reusable components. Refer
to the service manual procedures referenced in this document for additional component reusability
information and torque specifications.
Labor Codes
Labor Code
Description
RCA382300100
RCA-38-23-001 not applicable
RCA382300101
Install washers on 4 halfshafts
Contact [email protected]
regarding labor codes and document content.
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