# Service bulletin 01\-073

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.

- Type: Service bulletin
- NHTSA id: 10164369
- Published by NHTSA: 2019\-09\-05
- Manufacturer's number: 01\-073
- Manufacturer's date: 2019\-08\-02
- NHTSA component: EQUIPMENT; EQUIPMENT:APPLIANCE:AIR CONDITIONER

## NHTSA's summary

Fix as Fail HVAC system may demonstrate inadequate temperature control, be stuck in defrost mode, or have intermittent changes in fan speed that can be remedied with an updated HVAC software.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10164369-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10164369-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Equipment and accessories, Heating and air conditioning

## Vehicles listed

- 2011 to 2019 KENWORTH T680
- 2011 to 2019 KENWORTH T880
- 2019 KENWORTH W990
- 2013 to 2020 PETERBILT 567
- 2013 to 2020 PETERBILT 579

## Recalls for the same vehicles and component

- [15V641000](/recalls/nhtsa/15V641000.md), 2015-10-09: EQUIPMENT
- [15V132000](/recalls/nhtsa/15V132000.md), 2015-03-06: EQUIPMENT:OTHER:LABELS; TIRES
- [12V333000](/recalls/nhtsa/12V333000.md), 2012-07-16: EQUIPMENT:OTHER:LABELS
- [12V332000](/recalls/nhtsa/12V332000.md), 2012-07-16: EQUIPMENT
- [12V249000](/recalls/nhtsa/12V249000.md), 2012-06-01: EQUIPMENT

## Other bulletins for the same vehicles and component

- [02\-174](/bulletins/10241501.md), 2023-09-01, Service bulletin: ENGINE AND ENGINE COOLING; STRUCTURE; EQUIPMENT. Certain W990 hood\-mounted engine air intake covers could loosen and rattle or separate from vehicle. New air intake covers are available with improved retention. Installation of new covers requires hood modification. Procedures are available for replacement of hood\-mounted engine air intake covers.
- [01\-079](/bulletins/10238387.md), 2023-07-05, Service bulletin: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; VISIBILITY; ENGINE AND ENGINE COOLING. Fix\-as\-Fail \- HVAC Intermittently Stops Blowing Cold Air
- [04\-019](/bulletins/10210949.md), 2022-05-05, Service bulletin: STRUCTURE; EQUIPMENT. A roof fairing reinforcement kit increases structural support for one\-piece 579 roof fairings that are experiencing fatigue from external forces such as reverse towing.
- [13\-057](/bulletins/10209699.md), 2022-04-05, Service bulletin: EQUIPMENT; SERVICE BRAKES, AIR; EQUIPMENT ADAPTIVE/MOBILITY; SERVICE BRAKES, HYDRAULIC. Fix\-As\-Fail – A hill start assist \(HSA\) valve plumbing revision eliminates ice buildup in the HSA valve exhaust in cold weather.
- [51\-013](/bulletins/10208770.md), 2022-03-04, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. Due to major data carriers phasing out 3G networks, chassis currently utilizing first generation Peoplenet Mobile Gateway \(PMG001\) will experience severe 3G service degradation as early as January of 2022. Chassis currently utilizing 3G antennas as a primary antenna may experience this degradation
- [51\-013](/bulletins/10208758.md), 2022-03-04, Service bulletin: EQUIPMENT. Due to major data carriers phasing out 3G networks, chassis currently utilizing first generation Peoplenet Mobile Gateway \(PMG001\) will experience severe 3G service degradation as early as January of 2022. Chassis currently utilizing 3G antennas as a primary antenna may experience this degradation.
- [34\-090](/bulletins/10208756.md), 2022-03-04, Service bulletin: EQUIPMENT; EXTERIOR LIGHTING; ELECTRICAL SYSTEM. A frame mounted left\-hand marker light bracket interferes with the rear fuel tank fill location. A redesigned bracket can be purchased that relocates the marker bracket to the front fuel tank bracket to eliminate interference.
- [41\-020](/bulletins/10208714.md), 2022-03-04, Service bulletin: EQUIPMENT; ENGINE AND ENGINE COOLING. The Turbo Inlet Elbow is susceptible to tearing, potentially allowing dust to enter the engine. The Turbo Inlet Elbow will be replaced with an improved part.
- [21PBN](/bulletins/10207154.md), 2022-02-04, Service bulletin: FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; ELECTRICAL SYSTEM; EQUIPMENT. Interim Safety Recall – Methane detection system will not warn the operator if the system loses power. The driver could be unaware of an issue with the methane detection system or excessive methane present, increasing the risk of a fire, crash and/or personal injury. The repair procedure will be added when it is available.
- [52\-004](/bulletins/10199985.md), 2021-08-05, Service bulletin: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SOFTWARE. Fix\-as\-Fail: Radio does not mute when truck with auto trans is placed in reverse. Software flash resolves issue.

JSON: [/v1/bulletins/10164369](/v1/bulletins/10164369)

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