# Service bulletin A21120B

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: 10237952
- Published by NHTSA: 2023\-06\-21
- Manufacturer's number: A21120B
- Manufacturer's date: 2023\-06\-13
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Service News \- The navigation clock and date are incorrect. This is due to a limited GPS receiver Capacity resulting in a rollover of the internal chip memory; the rollover occurred on January 1, 2022, at 12:00AM local time.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10237952-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10237952-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2006 to 2011 HONDA CIVIC
- 2006 to 2011 HONDA CIVIC HYBRID
- 2007 to 2011 HONDA CR\-V
- 2011 to 2012 HONDA CR\-Z
- 2009 to 2010 HONDA ELEMENT
- 2009 to 2011 HONDA FIT
- 2010 to 2011 HONDA INSIGHT

## Recalls for the same vehicles and component

- [12V436000](/recalls/nhtsa/12V436000.md), 2012-09-05: TRAILER HITCHES; ELECTRICAL SYSTEM:WIRING
- [2011098](/recalls/tc/2011098.md), 2011-03-03: Electrical
- [11V106000](/recalls/nhtsa/11V106000.md), 2011-03-02: ELECTRICAL SYSTEM
- [2011013](/recalls/tc/2011013.md), 2011-01-11: Electrical
- [11V004000](/recalls/nhtsa/11V004000.md), 2011-01-06: ELECTRICAL SYSTEM
- [2007024](/recalls/tc/2007024.md), 2007-02-02: Electrical

## Other bulletins for the same vehicles and component

- [A21120B](/bulletins/10206994.md), 2022-02-04, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM\(GLOBAL POSITIONING SYSTEM\). ServiceNews Article \- The clock shows the incorrect time. This issue is due to a limited GPS receiver capacity resulting in "rollover" of the internal chip memory; the "rollover" will occur on January 1, 2022 at 12:00AM local time. As a result, the navigation date and time will be incorrect.
- [JK5\-14\-064](/bulletins/10193114.md), 2021-05-12, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Our records indicate that a PRODUCT UPDATE has not been completed on this vehicle; refer to the address card for the affected VIN. The software controlling the IMA battery on your vehicle incorrectly maintains the battery and, over time, the battery develops a memory affect that appears as a reduction in battery capacity. If the software is not updated, it is likely that the vehicle may set a code falsely indicating a deterioration of the battery of pack, or the battery level gauge may suddenly drop to empty and start charging unnecessarily.
- [JK4\-14\-064](/bulletins/10193025.md), 2021-05-12, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Our records indicate that a PRODUCT UPDATE has not been completed on this vehicle; refer to the address card for the affected VIN. The software controlling the IMA battery on your vehicle incorrectly maintains the battery and, over time, the battery develops a memory effect that appears as a reduction in battery capacity. If the software is not updated, it is likely that the vehicle may set a code falsely indicating a deterioration of the battery pack, or the battery level gauge may suddenly drop to empty and start charging unnecessarily.
- [Service Bulletin](/bulletins/10142649.md), 2018-07-16, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM:SOFTWARE. Service bulletin \- Due to improvements in battery manufacturing efficiency, once stocks of original IMA batteries are depleted, new battery designs will be available for IMA battery replacement. Each battery type requires that its battery control software be matched to its IMA battery type. Failure to match the software with the battery will result in reduced IMA battery life.
- [DLR MSG \- RFP \-](/bulletins/10129815.md), 2018-03-12, Service bulletin: ELECTRICAL SYSTEM. Dealer message \- American Honda \(AHM\) is investigating certain 2010 CR\-Vs with a complaint of the Malfunction Indicator Lamp \(MIL\) on with the DTC P0420 \(Catalyst System Efficiency Below Threshold\) stored. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting any further repair of any kind.
- [Service Bulletin](/bulletins/10129480.md), 2018-03-05, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Service bulletin \- The starter motor intermittently grinds in cold weather. The starter clutch housing may be out of specification, causing uneven loading between the clutch roller and the starter pinion.
- [DLR MSG \- RFV RF](/bulletins/10128556.md), 2018-02-12, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Dealer message \- American Honda \(AHM\)is investigating certain 2010 CR\-Vs \& Accord L4 with a complaint of the Malfunction Indicator Lamp \(MIL\)on with the DTC P0420 \(Catalyst System Efficiency Below Threshold\)stored. To fully understand the cause of this condition, AHM would like to either inspect or collect specific parts from the vehicle prior to you attempting any further repair of any kind.
- [Service Bulletin](/bulletins/10118839.md), 2017-10-15, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. Service bulletin \- The software controlling the IMA battery incorrectly maintains the battery and over time the battery can develop a memory effect that appears as a reduction in battery capacity. Additionally, DTC P0A7F \(Battery Module Deterioration\) may be stored.
- [DLR MSG \- Honda](/bulletins/10118827.md), 2017-10-15, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. Dealer message \- Today, October 3, 2014, American Honda is announcing a product update for all 2011\-12 CR\-Z and 2010\-12 Insight vehicles. The product update involves updating the IMA battery control unit software to address premature battery deterioration concerns.
- [Service Bulletin](/bulletins/10118170.md), 2017-09-29, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Service bulletin\- The software controlling the IMA battery incorrectly maintains the battery and over time the battery can develop a memory effect that appears as a reduction in battery capacity. Additionally, DTC P0A7F \(Battery Module Deterioration\) may be stored.

JSON: [/v1/bulletins/10237952](/v1/bulletins/10237952)

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