# Service bulletin 15\-001\-19\-3517a

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: 10154533
- Published by NHTSA: 2019\-03\-19
- Manufacturer's number: 15\-001\-19\-3517a
- Manufacturer's date: 2019\-03\-04
- NHTSA component: EXTERIOR LIGHTING; SERVICE BRAKES, HYDRAULIC; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; LANE DEPARTURE; FORWARD COLLISION AVOIDANCE

## NHTSA's summary

Some vehicles may experience a SBS/SCBS, LAS/LDWS and/or ADAPTIVE LED headlight /HBC warning light on with the DTC U0155:00 stored in memory. The warning lights may stay on while these functions are deactivated. This concern may be caused by faulty Instrument Cluster software. To eliminate this concern, the software has been modified. NOTE: The Mazda Diagnostic Reprogramming Tool \(MDRT\) loaner program begins effective Jan. 30, 2019.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10154533-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10154533-9999.pdf)

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

## Components

Brakes, Driver assistance, Electrical system, Equipment and accessories, Lighting, Instrument cluster

## Trouble codes named

U0155

## Vehicles listed

- 2017 to 2018 MAZDA CX\-5

## Other bulletins for the same vehicles and component

- [SA\-050\-23](/bulletins/10241637.md), 2023-09-05, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Some customers may complain about scratches on the instrument cluster lens.
- [07\-002\-23](/bulletins/10232300.md), 2023-03-03, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Some customers may complain that the ambient temperature on the instrument cluster is displayed more than 50 °F \(10°C\) lower than the actual temperature, resulting in insufficient performance of the air conditioning. This is caused by inappropriate soldering in the ambient temperature sensor. To eliminate this concern, the soldering process has been enhanced since December 2021 at the supplier.
- [09\-016\-23](/bulletins/10232299.md), 2023-03-03, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER. Speedometer replacement procedure
- [09\-024\-22](/bulletins/10217209.md), 2022-08-04, Service bulletin: ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER. In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer.
- [SA\-039\-22](/bulletins/10215244.md), 2022-07-06, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT; UNKNOWN OR OTHER. Some customers may complain about scratches on the instrument cluster lens.
- [09\-019\-17](/bulletins/10186335.md), 2021-02-01, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM. Fctry MESSASGE DISPLAYED after instrument cluster replacement. After the installation of a new instrument cluster, the message "Fctry" is displayed instead of the odometer. Some new instrument clusters are in the factory mode setting. Factory mode cancellation is required.
- [09\-018\-17](/bulletins/10186334.md), 2021-02-01, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Display shows inaccurate ambient temperature. Some customers may complain that the ambient temperature display is not accurate, or it takes too long for the display to show actual temperature.
- [09\-009\-19\-3566](/bulletins/10153339.md), 2019-02-19, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer. NOTE: Tampering with a motor vehicle odometer is strictly prohibited by Federal, and State laws. It is the dealer's responsibility to comply with Federal, State, and local laws concerning odometer and related documentation requirements when providing a repair or replacement. Mazda vehicles are manufactured with tamper\-proof speedometers. When a speedometer is replaced, the new speedometer will read zero \(0\) miles. This procedure is extremely important to accurately represent actual vehicle mileage. Prior to speedometer removal, complete the information required on the "Speedometer Replacement Label". Labels can only be ordered through Mazda eStore. In an effort to achieve a higher level of Customer Experience and retain the value of Mazda's vehicles, MNAO Warranty Operations is allowing all Mazda dealers to utilize a third party, SPECMO Enterprises, Inc., for Instrument Panel Cluster \(IPC\) odometer setting service. With the use of SPECMO's services, it is possible that the odometer will be set between 10 to 31 miles over the odometer mileage at the time of replacement for both warranty and customer pay repairs. Please make sure that the customer is aware that there may be a slight variance to the odometer, in which case the customer may have to accept the slightly higher mileage. Since odometer setting service is not part of the warranty repair, it is not warrantable nor required, but optional. However, Mazda Warranty policy provides after\-warranty assistance \(AWA\) or DSA that can be utilized to cover this service expense.
- [09\-002\-18\-3410](/bulletins/10129566.md), 2018-03-05, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. After the installation of a new instrument cluster, the message "Fctry" or "Factory" is displayed instead ofthe odometer. This concern may also occur when a room fuse is installed in a new vehicle.Some new instrument clusters are in the factory mode setting. Factory mode cancellation is required.NOTE: The concern is applicable to Calsonic Kansei instrument clusters. Not all trim levels are affected.CX\-3 shown:Vehicles having this concern should have their vehicle repaired using the following procedure.
- [09\-035\-17\-3080](/bulletins/10118467.md), 2017-10-04, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer. NOTE: Tampering with a motor vehicle odometer is strictly prohibited by Federal, and State laws. It is the dealer?s responsibility to comply with Federal, State, and local laws concerning odometerand related documentation requirements when providing a repair or replacement. Mazda vehicles are manufactured with tamper\-proof speedometers. When a speedometer is replaced, the new speedometer will read zero \(0\) miles. This procedure is extremely important to accurately represent actual vehicle mileage. Prior to speedometer removal, complete the information required on the ?SpeedometerReplacement Label?.Labels can only be ordered through Mazda eStore. In an effort to achieve a higher level of Customer Experience and retain the value of Mazda?s vehicles, MNAO Warranty Operations is allowing all Mazda dealers to utilize a third party, SPECMO Enterprises, Inc., for Instrument Panel Cluster \(IPC\) odometer setting service.With the use of SPECMO?s services, a Mazda dealer can get the odometer setting updated to reflect the correct mileage at the time of replacement for both warranty and customer pay repairs, therefore resulting in a higher level of customer satisfaction. Since odometer setting service is not part of the warranty repair, it is not warrantable nor required, but optional. However, Mazda Warranty policy provides after\- warranty assistance \(AWA\) or DSA that can be utilized to cover this service expense.

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