SB-10057481-6311
ATTENTION: Dealer Principal, Warranty Manager, Service
Manager, Parts Manager
Freightliner Dealers – U.S. and Canada
FCCC Dealers – U.S. and Canada
Thomas Built Bus Dealers – U.S. and Canada

REF #:

WARRANTY CAMPAIGNS DEPARTMENT
P.O. Box 4090
800-547-0712
Portland, Oregon 97208-4090
FAX 503-745-9009

ICI15-001

Effective:

02/27/15

Release:

02/27/15

SUBJECT:

Daimler Trucks North America LLC

If you have questions about
this Letter, please submit your
inquiry on the Web at:
AccessFreightliner.com /
Support / My Tickets and
Submit an Inquiry

Allison Tech Tip #TT7539EN
Load-Based Shift Scheduling Calibration Setting

This letter is to inform you that Allison Transmission Distributors will be performing a field action on behalf
of Freightliner Custom Chassis Corporation (FCCC) involving the recalibration of the Load-Based Shift
Scheduling (LBSS) setting. The effective models are specific FCCC C2, MT45 and MT55 chassis
manufactured August 27, 2013, through June 26, 2014, equipped with 1000/2000/3000 series Allison
Transmissions with 5th Generation Controls. Customers will be notified by mail and directed to an Allison
Distributor for the repair. This is a Daimler Trucks North America Field Service campaign being sublet to
Allison Transmission Distributors. DTNA dealers will not be performing the work.
If you receive a customer inquiry regarding Allison Tech Tip #TT7539EN, please direct the customer to
their nearest authorized Allison Distributor. To locate the nearest authorized Allison Distributor, the
customer may call the Allison Technical Assistance Center at (800) 252-5283 (24 hours a day) or visit the
Allison website, www.allisontransmission.com/sales-service-locator.
A copy of the customer letter is included for your reference.

Daimler Trucks
North America LLC

Daimler Trucks North America LLC
P.O. Box 4090
Portland, OR 97208-4090
800.547.0712 Phone
503.745.9009 Fax

February 27, 2015
Allison Tech Tip #TT7539EN

Subject: Allison Transmission
Load-Based Shift Scheduling Calibration Setting
Daimler Trucks North America LLC would like to make you aware of a customer
satisfaction field action being conducted on our behalf by Allison Transmission, Inc. The
vehicle identification number(s) listed in this notice are eligible for this field action. The
vehicles involved are specific Freightliner Custom Chassis (FCCC) C2, MT45 and MT55
chassis manufactured August 27, 2013, through June 26, 2014, equipped with
1000/2000/3000 series Allison Transmissions with 5th Generation Controls.
Some vehicles may have an incorrect Load-Based Shift Scheduling Calibration setting.
This may result in poor performance during normal driving conditions. Using Allison
TCM Reflash, an Allison distributor will correct the calibration setting.
Allison Transmission Distributors will perform this field action. To locate a distributor, go
to www.allisontransmission.com/sales-service-locator. Locations with the Allison “swirl”
have the reprogramming capabilities necessary to complete this field action.
When you contact an Allison Transmission Distributor, refer to Allison Tech Tip
#TT7539EN and have your vehicle identification number available. Contact the
distributor in advance to arrange for service. The field action may take up to one hour
and will be performed at no charge to you.
This customer satisfaction field action will be available until February 29, 2016.
Please be sure to have the field action completed before this date. Work done after this
date may be done at the customer’s expense.
If you have questions or need further information, contact the Allison Technical
Assistance Center at (800) 252-5283 (24 hours a day) and reference Tech Tip
#TT7539EN.

WARRANTY CAMPAIGNS DEPARTMANT
Enclosure