Daimler Truck
North America LLC

Field Service Campaign

March 2024
SF688A

Subject: Cummins Cruise Control Inhibit
Models Affected: Specific model year 2024 Western Star 47X and 49X
vehicles manufactured January 19, 2023, through June 20, 2023.

General Information
Daimler Truck North America LLC (DTNA), on behalf of its wholly owned subsidiary, Western Star Truck Sales,
Inc., is initiating Field Service Campaign SF688 to modify the vehicles mentioned above.
Cruise control does not automatically disengage when windshield wipers are activated
The Central Gateway Software will be updated to address the issue.
There are approximately 18 vehicles involved in this campaign.
Additional Repairs
Dealers must complete all outstanding recall and field service campaigns prior to the sale or delivery of a
vehicle. A dealer will be liable for any progressive damage that results from its failure to complete campaigns
before sale or delivery of a vehicle.
Owners may be liable for any progressive damage that results from failure to complete campaigns within a
reasonable time after receiving notification.
Please contact Warranty Campaigns for consideration of additional charges prior to performing the repair.

Work Instructions
Please refer to the attached work instructions. Prior to performing the campaign, check the vehicle for a
completion sticker (Form WAR261).

Replacement Parts
If our records show your dealership has ordered any vehicle(s) involved in campaign number SF688, a list of
the customers and vehicle identification numbers will be available on the DTNA Portal.
Table 1 - Replacement Parts for SF688
Campaign
Number

Part Number

SF688A

WAR261

Part Description

Qty.

BLANK COMPLETION STICKER

1

Table 1

Labor Allowance
Table 2 - Labor Allowance
Campaign
Number

Procedure

Time Allowed
(hours)

SRT Code

Corrective Action

SF688A

Update CGW Software

0.3

996-F177A

12-Repair Recall/Campaign

Table 2

IMPORTANT: When the campaign has been completed, locate the base completion label in the appropriate location on the vehicle, and attach the gray completion sticker provided in the field service kit (Form WAR261). If
the vehicle does not have a base completion label, clean a spot on the appropriate location of the vehicle and
first attach the base completion label (Form WAR259). If a field service kit is not required or there is no completion sticker in the kit, write the campaign number on a blank sticker and attach it to the base completion label.

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Daimler Truck
North America LLC

Field Service Campaign

March 2024
SF688A

Claims for Credit
You will be reimbursed for your parts, labor, and handling (landed cost for Export Distributors) by submitting
your claim through the warranty system within 30 days of completing this campaign. Please reference the
following information in OWL:
• Claim type is Field Service Campaign.
• In the Campaign field, enter the campaign number and appropriate condition code (SF688-A).
• In the Primary Failed Part field, enter 25-SF688-000.
• In the Labor section, enter the appropriate SRT from the Labor Allowance Table. Administrative time will
be included automatically as SRT 939-6010A for 0.3 hours.
• The VMRS Component Code is F99-999-005 and the Cause Code is A1 - Campaign.
• This Field Service Campaign will terminate on March 31, 2025. Dealers will be notified of any changes
to the termination date via an Important Campaign Information Letter (ICI) posted on the DTNA Portal.
IMPORTANT: OWL must be viewed prior to beginning work to ensure the vehicle is involved and the campaign
has not previously been completed. Also, check for a completion sticker before beginning work.
All claims must be submitted within 30 days of the repair and within 30 days of the termination date of the
campaign. U.S. and Canadian Dealers: All excess inventory to be returned to the PDC following the conclusion
of the campaign must be returned in resaleable condition to the Memphis PDC within 90 days from the
termination date. Please submit a PAR to request return to the Memphis PDC. (Canadian dealers should return
the kits to their facing PDC.) Export Distributors: Excess inventory is not returnable.
For questions, U.S. and Canadian dealers, contact the Warranty Campaigns Department using the Warranty
Support Center (WSC) app located on the DTNA Portal. Export distributors submit a WSC inquiry or contact
your International Service Manager.

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Daimler Truck
North America LLC

Field Service Campaign

March 2024
SF688A

Copy of Notice to Owners
Subject: Cummins Cruise Control Inhibit
Specific model year 2024 Western Star 47X and 49X vehicles manufactured January 19, 2023, through
June 20, 2023.
Daimler Truck North America LLC (DTNA), on behalf of its wholly owned subsidiary, Western Star Truck Sales,
Inc., is initiating Field Service Campaign SF688 to modify the vehicles mentioned above.
Cruise control does not automatically disengage when windshield wipers are activated
The Central Gateway Software will be updated to address the issue.
Please contact an authorized DTNA dealer to arrange to have the campaign performed and to ensure that parts
are available at the dealership. The campaign will take approximately 1 hour and will be performed free of
charge. To locate an authorized dealer, search online at northamerica.daimlertruck.com/contact-us. Scroll down
to “Locate a Dealer,” and select the appropriate brand.
This Field Service Campaign will terminate on March 31, 2025. Please make sure the campaign is completed
prior to this date. Work completed after this date will be done at the customer’s expense.
As stated in the terms of your express limited warranty, DTNA will not pay for any damage caused by failure to
properly maintain your vehicle. DTNA considers the work necessary under this campaign to be proper
maintenance and will, therefore, not pay for any damage to your vehicle caused by your failure to have the
repairs that are the subject of this campaign performed in a reasonable time.
Contact the Warranty Campaigns Department at (800) 547-0712, from 7 a.m. to 4 p.m. Pacific Time, Monday
through Friday, e-mail address [email protected], or the Customer Assistance
Center at (800) 385-4357, if you have any questions or need additional information.
WARRANTY CAMPAIGNS DEPARTMENT
Enclosure

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Daimler Truck
North America LLC

Field Service Campaign

March 2024
SF688A

Work Instructions
Subject: Cummins Cruise Control Inhibit
Models Affected: Specific model year 2024 Western Star 47X and
49X vehicles manufactured January 19, 2023, through June 20, 2023.

Flashing the Central Gateway (CGW04T)
1.

Check the base label (Form WAR259) for a completion sticker for SF688 (Form WAR261), indicating this
work has been done. The base label is usually located on the passenger-side door, about 12 inches (30
cm) below the door latch. If a completion sticker is present, no work is needed. If a completion sticker is
not present, proceed to the next step.

2.

Park the vehicle on a level surface, shut down the engine, and set the parking brake. Chock the tires.

3.

Connect an RP1210B-compliant vehicle diagnostic adaptor to the diagnostic connector on the vehicle.

4.

Connect the other end of the RP1210B-compliant vehicle diagnostic adaptor to the laptop.

5.

Open DiagnosticLink®.

IMPORTANT: Make sure that DiagnosticLink is updated to the latest version (8.18 SP1 at the time of publication, or newer) before programming the vehicle.
To update DiagnosticLink, from the menu bar, select ‘Tools,’ then select ‘Update’ from the dropdown menu.
6.

Use the DTNA Portal credentials to connect DiagnosticLink to the server.

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Daimler Truck
North America LLC

Field Service Campaign

March 2024
SF688A
7.

Go to the ‘Parameters’ tab. See Fig. 1.
DiagnosticLink will read the parameters of the connected ECUs. Wait for the message ‘Parameters were
successfully read from the device’ to be displayed.

A

B

10/18/2022

A. Go to the ‘Parameters’ tab.

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B. Wait for the parameters to be read from the device.
Fig. 1, Reading the ECU Parameters

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Daimler Truck
North America LLC

Field Service Campaign

March 2024
SF688A
8.

Go to the ‘Program Device’ tab, and make sure that the vehicle identification number (VIN) that appears is
correct. Select ‘Download data from server.’ See Fig. 2.
DiagnosticLink will document the parameters of the current vehicle on the server, as shown in Fig. 3.

B

A

C

10/06/2022

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A. Go to the ‘Program Device’ tab.
B. Verify the VIN that appears is correct.

C. Select ‘Download data from server.’

Fig. 2, Downloading the Data from the Server

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Fig. 3, Data Being Downloaded from the Server
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Daimler Truck
North America LLC

Field Service Campaign

March 2024
SF688A
9.

Once the latest data is retrieved, select ‘Next.’ See Fig. 4.

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Fig. 4, Latest Data Retrieved

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Daimler Truck
North America LLC

Field Service Campaign

March 2024
SF688A
10.

Follow the substeps to flash the CGW04T. See Fig. 5.
10.1 Select ‘CGW04T - Central Gateway - OK’ as the device to program.
10.2 Select ‘Newest - DiagnosticLink upload configuration - MM/DD/YYYY HH:MM:SS AM - OK’ as the
configuration to apply to the device.
10.3 Select ‘Next.’

A

B

C
02/21/2024

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A. Select ‘CGW04T - Central Gateway - OK.’
B. Select ‘Newest - DiagnosticLink upload configuration - MM/DD/YYYY HH:MM:SS AM - OK.’
C. Select ‘Next.’
Fig. 5, Selecting the Device Configuration

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Daimler Truck
North America LLC

Field Service Campaign

March 2024
SF688A
10.4 Select ‘Start’ to start flashing the CGW04T. See Fig. 6.

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Fig. 6, Starting to Flash CGW04T

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Daimler Truck
North America LLC

Field Service Campaign

March 2024
SF688A

10.5 Once the flashing is successful, select ‘Finish.’ See Fig. 7.

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Fig. 7, Flashing Successful

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Daimler Truck
North America LLC

Field Service Campaign

March 2024
SF688A
11.

Select ‘Unit data management’ in the upper-right corner. See Fig. 8.

02/21/2024

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Fig. 8, Selecting Unit Data Management

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Daimler Truck
North America LLC

Field Service Campaign

March 2024
SF688A

12.

The unit data available for upload is visible under the ‘Unit data for upload’ panel. Select ‘Connect to
server’ to upload the data. See Fig. 9.

A

B

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A. Make sure the unit data available for upload is visible here.
B. Select ‘Connect to server’ to upload the data.
Fig. 9, Uploading the Unit Data to the Server

13.

Once the data is uploaded to the server, disconnect the vehicle from DiagnosticLink.

14.

Turn the ignition key to the OFF position.

15.

Clean a spot on the base label (Form WAR259), and attach a campaign completion sticker for SF688
(Form WAR261), indicating this work has been completed.

Page 12