# Service bulletin NTB22\-073A

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: 10231430
- Published by NHTSA: 2023\-02\-07
- Manufacturer's number: NTB22\-073A
- Manufacturer's date: 2023\-01\-24
- NHTSA component: SERVICE BRAKES; BACK OVER PREVENTION; ELECTRICAL SYSTEM

## NHTSA's summary

REAR AUTOMATIC BRAKING WARNING LIGHT ILLUMINATED AND/OR DTC C1B56\-04 AND/OR C1B56\-97 STORED IN THE ADAS CONTROL UNIT This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10231430-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10231430-9999.pdf)

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

## Components

Brakes, Driver assistance, Electrical system, Backup camera

## Trouble codes named

C1B56

## Vehicles listed

- 2019 to 2021 NISSAN ALTIMA
- 2022 NISSAN redundant ALTIMA

## Recalls for the same vehicles and component

- [23V628000](/recalls/nhtsa/23V628000.md), 2023-09-08: BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
- [19V654000](/recalls/nhtsa/19V654000.md), 2019-09-12: BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

## Other bulletins for the same vehicles and component

- [NTB22\-038B](/bulletins/10238341.md), 2023-06-30, Service bulletin: BACK OVER PREVENTION; ELECTRICAL SYSTEM. RAB WARNING LIGHT ON IN INSTRUMENT PANEL AND/OR DTC B2724\-23 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- [NTB22\-038A](/bulletins/10231429.md), 2023-02-07, Service bulletin: SERVICE BRAKES; ELECTRICAL SYSTEM; BACK OVER PREVENTION. RAB WARNING LIGHT ON IN INSTRUMENT PANEL AND/OR DTC B2724\-23 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- [NTB22\-073](/bulletins/10218973.md), 2022-08-31, Service bulletin: BACK OVER PREVENTION. REAR AUTOMATIC BRAKING WARNING LIGHT ILLUMINATED AND/OR DTC C1B56\-04 OR C1B56\-97 STORED IN THE ICC/ADAS2 CONTROL MODULE SERVICE INFORMATION If the customer states the rear automatic braking \(RAB\) warning light was illuminated and “Malfunction See Owner’s Manual” appears in the message center \(Figure 1\), AND / OR DTC C1B56\-04 and/or C1B56\-97 are stored in the ICC/ADAS2 Control Module. Refer to the information on page 2 to determine next steps.
- [NTB22\-038](/bulletins/10218755.md), 2022-08-27, Service bulletin: BACK OVER PREVENTION. RAB WARNING LIGHT ON IN INSTRUMENT PANEL AND/OR DTC B2724\-23 STORED IF YOU CONFIRM The customer states an RAB warning light in the instrument panel’s information display is ON \(Figure 1\), AND/OR DTC B2724\-23 \(SONAR CONTROL UNIT \- SONAR ECU INTERNAL FAILURE \[UNDER VOLTAGE\]\) is stored. NOTE: A RAB warning light may appear in the vehicle information display. ACTION Reprogram and configure the Sonar Control Unit with the SERVICE PROCEDURE in this bulletin, if applicable.

JSON: [/v1/bulletins/10231430](/v1/bulletins/10231430)

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