Daimler Trucks

Field Service

North America LLC

Campaign

October 2024
SF691 AB

Subject: M2 Plus Work Brake
Models Affected: Specific model years 2024-2025 Business Class M2 vehicles manufactured
between March 23, 2023, through July 30, 2024.

General Information
Daimler Truck North America LLC (DTNA), on behalf of its Freightliner Trucks Division, is initiating Field
Service Campaign SF691 to modify the vehicles mentioned above.
REVISION: Additional vehicles have been added to the campaign, and a new campaign group (B) has
been included. The work instructions for group B, along with a new SRT, have been incorporated into the
bulletin.
The parameters that control the work brake function do not operate properly.
The work brake parameter will be updated. Group A will require the XMC1 X1 Connector Wires to be
repositioned.
There are approximately 220 vehicles involved.
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
There are no replacement parts for this repair.
If our records show your dealership has ordered any vehicle(s) involved in campaign number SF691,
a list of the customers and vehicle identification numbers will be available on DTNA Portal.
Table 1 - Replacement Parts for SF691
Campaign
Number

Part Description

Part
Number

QTY

SF691 A&B

BLANK COMPLETION
STICKER

WAR261

1 ea

Table 1

Removed Parts
U.S. and Canadian Dealers, please follow Warranty Failed Parts Tracking shipping instructions for the
disposition of all removed parts. Export distributors, please destroy removed parts unless otherwise
advised.
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Daimler Trucks

Field Service

North America LLC

Campaign

October 2024
SF691 AB

Labor Allowance
Table 2 - Labor Allowance
Campaign
Number

Procedure

Time
Allowed
(hours)

SRT
Codes

Corrective Action
12-Repair Recall/Campaign

SF691 A

Parameter update, and moving XMC1
X1 Connector Wires

1.7

996-F218A

SF691 B

PARAMETER, XMC1, WORK BRAKE,
PROGRAM ONLY (SF691B)

0.4

996-F218B

12-Repair
Recall/Campaign

Table 2

IMPORTANT: When the campaign has been completed, locate the base completion label in the
appropriate lo- cation 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.

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 (SF691-A,
SF691-B).
• In the Primary Failed Part field, enter 25-SF691-000.
• There are no replacement parts for this repair.
• 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 October 31st, 2025. Dealers will be notified of any
changes to the termination date via Important Campaign Information Letter posted on 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.
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Daimler Trucks
North America LLC

Campaign

Field Service

October 2024
SF691 AB
(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 via
Web inquiry at DTNA Portal/WSC, or the Customer Assistance Center at (800) 385-4357, if you
have any questions or need additional information. Export distributors submit a Web inquiry or
contact your International Service Manager

Page 3

Daimler Trucks
North America LLC

Campaign

Field Service

October 2024
SF691 AB

Copy of Notice to Owners
Subject: M2 Plus Work Brake
Daimler Truck North America LLC (DTNA), on behalf of its Freightliner Trucks Division, is initiating Field
Service Campaign SF691 to modify the vehicles mentioned above.
The parameters that control the work brake function do not operate properly.
The work brake parameter will be updated. Group A will require the XMC1 X1 Connector Wires to be
repositioned.
Please contact an authorized Daimler Trucks North America dealer to arrange to have the campaign
performed and to ensure that parts are available at the dealership. To locate an authorized dealer, go
to
Daimler-TrucksNorthAmerica.com/Contact-Us/. Scroll down to “Locate a Dealer,” and select the
appropriate brand. The campaign will take approximately one to two hours and will be performed at no
charge to you.
This Field Service Campaign will terminate on October 31st, 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, Daimler Trucks North America LLC will not
pay for any damage caused by failure to properly maintain your vehicle. Daimler Trucks North
America LLC 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

Page 4

Daimler Truck
North America LLC

Field Service Campaign

October 2024
SF691 AB

Work Instructions
Subject: M2 Plus Work Brake
Models Affected: Specific model years 2024-2025 Business Class
M2 vehicles manufactured between March 23, 202, through April 9,
2024.

Enabling the Work Brake Feature
Updating the Single Signal Detect and Actuation Module (sSAM02T)
and Extension Module Controller (XMC02T) Parameters
1.

Check the base label (Form WAR259) for a completion sticker for SF691 (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 (8.20 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 drop-down menu.
6.

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

7.

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. 1.

Page 4

Daimler Truck
North America LLC

Field Service Campaign

October 2024
SF691 AB

05/28/2024

f612252

Fig. 13, Work Brake Tell-Tale on the ICU

8.3

The brake pressure is being applied to the rear brakes.

8.4

Open the door with the work brake activated.
• The in-cab warning should not sound.

9.

Step on the brake pedal.

10.

Deactivate the work brake.
10.1 The transmission should return to gear.
10.2 The tell-tale indication on the ICU should disappear.

Horn Alert Test
1.

Release the parking brake.

2.

Activate the work brake.

3.

Put the transmission into drive.

4.

Drive through the work brake resistance to 5 mph (8 km/h).
4.1

The city horn alert should sound continuously until the vehicle comes to a standstill.

Troubleshooting
1.

The parking brake sets when the work brake is activated.
• Check the plumbing for an incorrectly plumbed inversion valve. Figure 14 shows the work brake
schematic.
• The inversion valve and the regulator valve are mounted together and can be incorrectly-plumbed.

Page 11