# Service bulletins for the 2020 Freightliner Columbia

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

26 bulletins from NHTSA, as of 2026-10-19.

- [CXA\_10\_25\_TufTrac M12](/bulletins/11024969.md), 2025-11-05, Other: SUSPENSION. CX Advocate for TufTrac M12 Bolts \(TSB\-32\-057\-FTL\)
- [TSB32\-057\-FTL](/bulletins/11023690.md), 2025-10-03, Service bulletin: SUSPENSION. Technical Service Bulletin for TufTrac M12 Bolts
- [ICI23\-010](/bulletins/10233951.md), 2023-04-07, Service bulletin: STEERING. Important Campaign Information letter communicating that SF660 Field Service Campaign is Replaced by FL967.
- [SF660A](/bulletins/10230910.md), 2023-02-04, Service bulletin: STEERING. Revised Field Service Campaign for Drag Link Tapered Joint
- [SF660](/bulletins/10228679.md), 2023-01-06, Service bulletin: STEERING. Field Service Campaign for Drag Link Tapered Joint
- [SS1032974](/bulletins/10195659.md), 2021-06-09, Service bulletin: UNKNOWN OR OTHER. SS 1032974 High Oil Pressure on 2017 DTNA Vehicles Instrument Cluster Display
- [SS1033638](/bulletins/10195478.md), 2021-06-09, Service bulletin: ELECTRICAL SYSTEM. SS 1033638 \- Power Window Express Down Module Discontinued
- [WSTCAE171\-2019](/bulletins/10193762.md), 2021-05-18, Service bulletin: EQUIPMENT; FUEL SYSTEM, OTHER; POWER TRAIN. Allison FuelSense 2.0
- [WI21\-009](/bulletins/10190551.md), 2021-04-24, Service bulletin: ENGINE AND ENGINE COOLING. Warranty Information letter announcing that DTNA is increasing the Standard Diagnostic Times \(SDTs\) shown. The updated after treatment system \(ATS\) diesel exhaust fluid \(DEF\) pump times will be applied to repair orders opened on or after April 12, 2021.
- [WI21\-008](/bulletins/10190549.md), 2021-04-23, Service bulletin: EQUIPMENT. Warranty Information Letter announcing DTNA is adjusting the Standard Repair Times \(SRTs\) shown. The updated times will be applied to repair orders opened on or after April 5, 2021.
- [SB35\-036](/bulletins/10184785.md), 2020-12-30, Service bulletin: POWER TRAIN. Revised Freightliner Service Bulletin for Axle Flange Gasket Replaced with O\-Ring. Revision removed steps instructing removal and installation of wheels. Daimler Trucks North America has released a new axle shaft to hub rubber O\-ring \(part number 11\-30728\-000\) as a replacement for the paper gasket \(part number 11\-14418\-000\). The new O\-ring will provide better sealing and is reusable. It is quicker and easier to use compared to the paper gasket, because using a paper gasket requires cleaning the hub when the axle shaft is removed.
- [SB35\-036](/bulletins/10181049.md), 2020-10-12, Service bulletin: EQUIPMENT; POWER TRAIN. Freightliner Service Bulletin for Axle Flange Gasket Replaced with O\-Ring. Daimler Trucks North America has released a new axle shaft to hub rubber O\-ring \(part number 11\-30728\-000\) as a replacement for the paper gasket \(part number 11\-14418\-000\). The new O\-ring will provide better sealing and is reusable. It is quicker and easier to use compared to the paper gasket, because using a paper gasket requires cleaning the hub when the axle shaft is removed.
- [SB60\-171](/bulletins/10177648.md), 2020-07-28, Service bulletin: STRUCTURE:BODY:DOOR. Service Bulletin for Guidelines for Cleaning and Disinfecting Cab Surfaces. The following guidelines are for cleaning and disinfecting commonly touched surfaces on the inside and outside of a vehicle. For best results, follow cleaning and disinfecting procedures fully and consistently. Ensure there is adequate ventilation when using chemicals. NOTICE: Wipe down fragile components carefully to avoid damaging the vehicle.
- [D20M3](/bulletins/10176737.md), 2020-06-26, Service bulletin: ENGINE AND ENGINE COOLING. Detroit Field Service campaign for DETROIT Export DD15 and DD13 Valve Lash Adjustment, Throttle Connector O\-ring, and TC Air Line Spacer Installation.
- [SB54\-327](/bulletins/10173894.md), 2020-04-17, Service bulletin: BACK OVER PREVENTION; ELECTRICAL SYSTEM. Service Bulletin for Lengthening the Backup Light Harness. Though the backup light harness is long enough to connect to the backup light switch, it may be short enough that the wire seals in the connector can be stressed. Moisture entering through the seals can cause corrosion, resulting in a bad connection and/or failure of the switch. As a result, backup lights and, if equipped, the backup alarm, may not function when the vehicle is shifted into reverse.
- [20CSA\-04](/bulletins/10172649.md), 2020-03-22, Service bulletin: ENGINE AND ENGINE COOLING; EQUIPMENT. Customer Service Announcement saying that Service Pack \(SP\) 3 for DiagnosticLink® 8.11 Standard and Professional will be available for download from the Detroit Diesel server.
- [WP20\-002](/bulletins/10172547.md), 2020-03-17, Service bulletin: STRUCTURE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Warranty Policy Letter explaining the Warranty Department is aligning with the frame rail repair policy, published in DTNA Workshop Manuals, which states that there are very few cases in which welding a heat\-treated frame rail is allowed. Therefore, before welding anything on a frame rail, contact the applicable regional service representative for approval.
- [20CSA\-03](/bulletins/10172136.md), 2020-03-06, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Customer Service Announcement saying that Service Pack \(SP\) 2 for Diagnostic Link 8.11 Standard and Professional will be available for download from the Detroit Diesel server.
- [20CSA\-02](/bulletins/10170856.md), 2020-02-01, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Customer Service Announcement reminding service locations to update their DiagnosticLink software. To maintain access to the Detroit server, all DiagnosticLink computers must be updated with the current version of DiagnosticLink software. all DiagnosticLink 8.08 installed versions will be disabled as of Tuesday, January 28, 2020.
- [20CSA\-01](/bulletins/10170855.md), 2020-02-01, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING. Customer Service Announcement for a policy change regarding Detroit Service Information Bulletins \(SIBs\) will now have a 60\-day expiration, starting on the release day of the bulletin. The intent of a SIB is to notify the service network of a major change to one or more service procedures. Do not save SIBs nor reference them for repairs, as they are uncontrolled and never updated.
- [SB83\-119](/bulletins/10170265.md), 2020-01-17, Service bulletin: VISIBILITY. Service Bulletin for A/C system receiver\-drier replacement guidelines.
- [SB54\-290](/bulletins/10170264.md), 2020-01-17, Service bulletin: ELECTRICAL SYSTEM. Service Bulletin on guidelines for repairing or replacing an electrical harness.
- [SB72\-043](/bulletins/10169532.md), 2019-12-20, Service bulletin: VISIBILITY; STRUCTURE. Service Bulletin revision that adds Century Class and Columbia models to the affected list for a Door Window and Regulator Retrofit.
- [SB9815](/bulletins/10166797.md), 2019-10-30, Service bulletin: STRUCTURE. Service bulletin updating the Important Information section and adding instructions for proper visual inspection distance for paint finish standards.
- [19CSA\-16](/bulletins/10166510.md), 2019-10-26, Service bulletin: ENGINE AND ENGINE COOLING. Customer Service Announcement that eParts is being retired and that PartsPro should be used instead for Detroit Engine Parts Information.

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