TSB: FREIGHTLINER BUSINESS CLASS M2, CASCADIA, CENTURY CLASS, COLUMBIA, CORONADO, FLD (2003–2011)

Bulletin SB-46-48 — January 1, 2010

Bulletin Details

Bulletin IDSB-46-48
ManufacturerFREIGHTLINER
ModelsBUSINESS CLASS M2, CASCADIA, CENTURY CLASS, COLUMBIA, CORONADO, FLD
Model Years2003–2011
Date IssuedJanuary 1, 2010
Date Added to NHTSAJuly 21, 2010
ComponentSTEERING:GEAR BOX (OTHER THAN RACK AND PINION)
Vehicles Affected59 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

FREIGHTLINER: TRW TAS85 STEERING GEAR INTERNAL LEAKAGE TEST. SOME TRW TAS85 STEERING GEARS HAVE BEEN EQUIPPED WITH AN INTERNAL RELIEF VALVE. THESE STEERING GEARS ARE TYPICALLY INSTALLED WITH POWER STEERING PUMPS THAT HAVE A PRESSURE RELI

Affected Vehicles

MakeModelYearComponent
FREIGHTLINER BUSINESS CLASS M2 2011 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CASCADIA 2011 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER COLUMBIA 2011 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CORONADO 2011 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER BUSINESS CLASS M2 2010 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CASCADIA 2010 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CENTURY CLASS 2010 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER COLUMBIA 2010 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CORONADO 2010 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER FLD 2010 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER BUSINESS CLASS M2 2009 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CASCADIA 2009 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CENTURY CLASS 2009 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER COLUMBIA 2009 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CORONADO 2009 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER FLD 2009 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER BUSINESS CLASS M2 2008 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CASCADIA 2008 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CENTURY CLASS 2008 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER COLUMBIA 2008 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CORONADO 2008 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER FLD 2008 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER BUSINESS CLASS M2 2007 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CASCADIA 2007 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CENTURY CLASS 2007 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER COLUMBIA 2007 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CORONADO 2007 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER FLD 2007 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER BUSINESS CLASS M2 2006 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CASCADIA 2006 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CENTURY CLASS 2006 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER COLUMBIA 2006 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CORONADO 2006 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER FLD 2006 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER BUSINESS CLASS M2 2005 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CASCADIA 2005 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CENTURY CLASS 2005 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER COLUMBIA 2005 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CORONADO 2005 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CENTURY CLASS 2004 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER FLD 2004 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
FREIGHTLINER CENTURY CLASS 2003 013000 STEERING:GEAR BOX (OTHER THAN RACK AND PINION)

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What Should You Do?

If your vehicle is affected by this TSB, contact your authorized FREIGHTLINER dealer. Bring this bulletin ID (SB-46-48) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.