# Service bulletin BIG5SEP23\_33b

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: 10243669
- Published by NHTSA: 2023\-10\-06
- Manufacturer's number: BIG5SEP23\_33b
- Manufacturer's date: 2023\-09\-14
- NHTSA component: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:THERMAL MANAGEMENT; EQUIPMENT

## NHTSA's summary

A concern has been identified on certain vehicles where the battery heater coolant hoses may have been incorrectly installed.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10243669-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10243669-9999.pdf)

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

## Components

Electrical system, Equipment and accessories, Hybrid and electric drive, High\-voltage battery

## Vehicles listed

- 2023 LAND ROVER RANGE ROVER PHEV
- 2023 LAND ROVER RANGE ROVER SPORT PHEV

## Recalls for the same vehicles and component

- [23V568000](/recalls/nhtsa/23V568000.md), 2023-08-10: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

## Other bulletins for the same vehicles and component

- [SFCC\_SEP2023\_16](/bulletins/10243671.md), 2023-10-06, Service bulletin: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:THERMAL MANAGEMENT; EQUIPMENT. On certain 2023 model year Range Rover and Range Rover Sport Plug\-in Hybrid Electric Vehicle \(PHEV\) vehicles, the battery heater coolant hoses may have been incorrectly installed.
- [SFCC\_MAY2023\_30](/bulletins/10237530.md), 2023-06-07, Service bulletin: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY; EQUIPMENT. Customers will be reporting PHEV High Voltage battery will not take a charge.
- [SFCC\_JAN2023\_49](/bulletins/10231371.md), 2023-02-07, Service bulletin: POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:THERMAL MANAGEMENT:SENSOR/THERMOSTAT. Customer reports coolant level low message on dash, Yellow check engine light, Red Engine temperature light, or poor idle.
- [SSM75186](/bulletins/10222679.md), 2022-10-07, Service bulletin: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:THERMAL MANAGEMENT:FLUID/COOLANT; EQUIPMENT. HIGH VOLTAGE COOLANT HEATER INTERNAL FAILURE

JSON: [/v1/bulletins/10243669](/v1/bulletins/10243669)

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