# Other TUCC\_MAR2026\_18

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: Other
- NHTSA id: 11030959
- Published by NHTSA: 2026\-04\-07
- Manufacturer's number: TUCC\_MAR2026\_18
- Manufacturer's date: 2026\-03\-13
- NHTSA component: ENGINE

## NHTSA's summary

Coolant may leak from the turbocharger coolant hose O\-rings, resulting in engine coolant escaping into the engine compartment and subsequent illumination of the low coolant warning indicator on the instrument cluster. Replacement coolant hose O\-rings are required.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11030959-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11030959-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2023 to 2024 LAND ROVER DEFENDER
- 2023 to 2024 LAND ROVER RANGE ROVER
- 2023 to 2024 LAND ROVER RANGE ROVER SPORT

## Recalls for the same vehicles and component

- [2024599](/recalls/tc/2024599.md), 2024-10-10: Engine
- [2024352](/recalls/tc/2024352.md), 2024-06-17: Engine
- [24V450000](/recalls/nhtsa/24V450000.md), 2024-06-17: ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:FILTER/SCREEN
- [23V790000](/recalls/nhtsa/23V790000.md), 2023-11-22: ENGINE AND ENGINE COOLING
- [23V222000](/recalls/nhtsa/23V222000.md), 2023-03-30: ENGINE
- [2023039](/recalls/tc/2023039.md), 2023-02-02: Engine
- [23V044000](/recalls/nhtsa/23V044000.md), 2023-02-02: ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION

## Other bulletins for the same vehicles and component

- [D061 Range Rover 18SEP26](/bulletins/11038338.md), 2026-10-07, Other: ENGINE. Turbocharger Coolant Feed / Return Leak
- [Turbocharger Coolant Feed](/bulletins/11038337.md), 2026-10-07, Other: ENGINE. Turbocharger Coolant Feed / Return Leak
- [D011 Range Rover 18SEP26](/bulletins/11038303.md), 2026-10-07, Other: ENGINE. Coolant Bypass Hose Leak
- [D011 Defender 18SEP26](/bulletins/11038301.md), 2026-10-07, Other: ENGINE. Coolant Bypass Hose Leak
- [D061 Range Rover 21AUG26](/bulletins/11037133.md), 2026-09-08, Other: ENGINE. Turbocharger Coolant Feed / Return Leak
- [D061 Defender 21AUG26](/bulletins/11037132.md), 2026-09-08, Other: ENGINE. Turbocharger Coolant Feed / Return Leak
- [D061 Range Rover 17JUL26](/bulletins/11035863.md), 2026-08-05, Other: ENGINE. Turbocharger Coolant Feed / Return Leak
- [D061 Defender 17JUL26](/bulletins/11035861.md), 2026-08-05, Other: ENGINE. Turbocharger Coolant Feed / Return Leak
- [D011 Range Rover 17JUL26](/bulletins/11035857.md), 2026-08-05, Other: ENGINE. Coolant Bypass Hose Leak
- [D011 Defender 17JUL26](/bulletins/11035856.md), 2026-08-05, Other: ENGINE. Coolant Bypass Hose Leak

JSON: [/v1/bulletins/11030959](/v1/bulletins/11030959)

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