# Service bulletin 09\-018\-20\-3690a

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: 10182104
- Published by NHTSA: 2020\-11\-04
- Manufacturer's number: 09\-018\-20\-3690a
- Manufacturer's date: 2020\-10\-30
- NHTSA component: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

## NHTSA's summary

Some customers may notice white lines appearing across the instrument cluster \(as shown below\). The white lines may be caused during the production process where poor contact occurs at the internal LCD terminals.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10182104-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10182104-9999.pdf)

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

## Components

Electrical system, Instrument cluster

## Vehicles listed

- 2020 MAZDA CX\-30
- 2019 to 2020 MAZDA MAZDA3

## Recalls for the same vehicles and component

- [19V363000](/recalls/nhtsa/19V363000.md), 2019-05-14: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; SEAT BELTS:FRONT:WARNING LIGHT/DEVICES

## Other bulletins for the same vehicles and component

- [09\-001\-24b](/bulletins/10252503.md), 2024-04-03, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Some customers may experience a “Telematics Malfunction” message in the instrument cluster with DTC U3000:04\-TCU \(Telematics communication unit internal malfunction\) stored in memory. This is caused by improper control software of the telematics communication unit \(TCU\). To eliminate this concern, the control software of the TCU has been modified.
- [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.
- [09\-020\-23](/bulletins/10235419.md), 2023-05-03, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT. Some customers may notice white lines appearing across the instrument cluster \(as shown below\). The white lines may be caused during the production process where poor contact occurs at the internal LCD terminals.
- [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.
- [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.
- [SA\-013\-21h](/bulletins/10206018.md), 2022-01-06, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT; ELECTRICAL SYSTEM. Connected Vehicle Symptom Troubleshooting: Some customers may complain about any of the following: \- Infotainment Center Display does not provide the Authorization Code during the MyMazda App Connected Vehicle enrollment. \- Remote function\(s\) inoperative. o Engine Start / Stop o Door Lock / Unlock o Lights ON / OFF MAZDA CONNECT connected vehicle reception strength icon shows "X" or " ". Confirm the customer's phone and vehicle have good to strong reception during the concern as shown in the table below. \- If the reception is weak, move the vehicle to a location where the reception is good to strong as shown in the table, then try to get the Authorization Code and/or operate the remote functions before proceeding to the Repair Procedure if there is still an issue. \- If the reception is good to strong, proceed to the Repair Procedure.
- [SA\-029\-20e](/bulletins/10177009.md), 2020-07-03, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. Some customers may experience a "IN\-VEHICLE NETWORK MALFUNCTION" warning message in the instrument cluster with one or more of the following DTC's stored:• B119F:01 TCU \- Tel antenna No. 1 malfunction • B119F:13 \(TCU \- TEL antenna No.1 circuit malfunction\) • B119F:2B \(CMU \- GPS antenna signal circuit malfunction\) • B1252:87 TCU \- Communication error with connectivity master unit \(CMU\) • U0156:00 VCM \- communication error with connectivity master unit \(CMU\) • U0156:00 BCM \- Communication error with connectivity master unit \(CMU\) • U0198:00 BCM \- Communication error with emergency call unit • U212D:00 BCM \- Communication error with light control module \(RH\) • U3000:00 TCU \- Telematics communication unit internal malfunction • Low Voltage Battery DTCs
- [SA\-029\-20d](/bulletins/10177008.md), 2020-07-03, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Some customers may experience a "IN\-VEHICLE NETWORK MALFUNCTION" warning message in the instrument cluster with one or more of the following DTC's stored:• B119F:01 TCU \- Tel antenna No. 1 malfunction • B119F:13 \(TCU \- TEL antenna No.1 circuit malfunction\) • B119F:2B \(CMU \- GPS antenna signal circuit malfunction\) • B1252:87 TCU \- Communication error with connectivity master unit \(CMU\) • U0156:00 VCM \- communication error with connectivity master unit \(CMU\) • U0156:00 BCM \- Communication error with connectivity master unit \(CMU\) • U0198:00 BCM \- Communication error with emergency call unit • U212D:00 BCM \- Communication error with light control module \(RH\) • U3000:00 TCU \- Telematics communication unit internal malfunction • Low Voltage Battery DTCs
- [09\-021\-20\-3714](/bulletins/10176980.md), 2020-07-02, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM\(GLOBAL POSITIONING SYSTEM\). Some customers may experience the master warning light and/or the "In\-Vehicle Network Malfunction" warning message in the instrument cluster on with DTC B119F:01, B119F:13 and/or B119F:2B stored when the vehicle position cannot be displayed correctly. \(TCU \- Tel antenna No. 1 malfunction\) \(TCU \- TEL antenna No.1 circuit malfunction\) \(CMU \- GPS antenna signal circuit malfunction\). This concern may be caused by incoming noise disturbing the reception of GPS signals, resulting in the wrong vehicle location and the DTC stored. To eliminate this concern, the GPS antenna has been modified.
- [SA\-008\-20](/bulletins/10170828.md), 2020-01-30, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; SERVICE BRAKES. INSTRUMENT CLUSTER WARNING MESSAGE "SAFETY AND DRIVER SUPPORT SYSTEMS PARTIALLY DISABLED" AND DTC U0401:68 IS STORED:Some customers may experience an instrument cluster warning message "Safety and Driver Support Systems Partially Disabled" and DTC U0401:68 \[VEHICLE CONTROL MODULE \(US\)\] \(Error signal received from PCM, DSC HU/CM, instrument cluster, or body control module \(BCM\)\) stored. This may be caused by the customer riding the brake pedal.

JSON: [/v1/bulletins/10182104](/v1/bulletins/10182104)

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