# Service bulletins for the 2023 Land Rover Defender

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.

406 bulletins from NHTSA, as of 2026-10-19.

- [Turbocharger Coolant Feed](/bulletins/11038337.md), 2026-10-07, Other: ENGINE. Turbocharger Coolant Feed / Return Leak
- [D011 Defender 18SEP26](/bulletins/11038301.md), 2026-10-07, Other: ENGINE. Coolant Bypass Hose Leak
- [SSM76493 \- 25SEP26](/bulletins/11038293.md), 2026-10-07, Other: STRUCTURE:BODY. Accessory Wheel Arch Protection \- Gaps Present Between Protection And Vehicle Body
- [D061 Defender 21AUG26](/bulletins/11037132.md), 2026-09-08, Other: ENGINE. Turbocharger Coolant Feed / Return Leak
- [D011 Defender 21AUG26](/bulletins/11037124.md), 2026-09-08, Other: UNKNOWN OR OTHER. Coolant Bypass Hose Leak
- [SSM76492 \- 20AUG26](/bulletins/11037119.md), 2026-09-08, Other: UNKNOWN OR OTHER. TCU Activation Failure And InControl App Inoperative After Software Update
- [SSM76487 \- 20AUG26](/bulletins/11037117.md), 2026-09-08, Other: UNKNOWN OR OTHER. Air Conditioning Inoperative / Intermittent Operation
- [D061 Defender 17JUL26](/bulletins/11035861.md), 2026-08-05, Other: ENGINE. Turbocharger Coolant Feed / Return Leak
- [D011 Defender 17JUL26](/bulletins/11035856.md), 2026-08-05, Other: ENGINE. Coolant Bypass Hose Leak
- [SSM76477 \- 21JUL26](/bulletins/11035735.md), 2026-08-05, Other: UNKNOWN OR OTHER. Intermittent Passive Entry Operation 24MY Or With New Service Smart Key Fob.
- [SSM76468 \- 03JUL26](/bulletins/11035732.md), 2026-08-05, Other: UNKNOWN OR OTHER. Unable to select Navigation when pressing the navigation Tile on theTouchscreen.
- [SSM76324 \- 06JUL26](/bulletins/11035679.md), 2026-08-04, Other: UNKNOWN OR OTHER. A low\-speed ‘clonk’ type noise from the rear driveline, audible during low speed throttle inputs, often coupled with up/down gear changes. The noise is audible during normal road driving conditions.
- [N869 Defender 16JUN26](/bulletins/11034885.md), 2026-07-08, Other: UNKNOWN OR OTHER. Software Over The Air \(SOTA\) updates are failing to complete. Specifically Vehicle Domain Controller \(VDC\) PIVI and Gateway Module A \(GWM\). These vehicles have now been stopped from further SOTA attempts and require a wired intervention.
- [D061 Defender 16JUN26](/bulletins/11034875.md), 2026-07-08, Other: ENGINE. Turbocharger Coolant Feed / Return Leak
- [D011 Defender 16JUN26](/bulletins/11034868.md), 2026-07-08, Other: UNKNOWN OR OTHER. Coolant Bypass Hose Leak
- [N869 Defender 15MAY26](/bulletins/11033424.md), 2026-06-04, Other: UNKNOWN OR OTHER. Software Over The Air \(SOTA\) updates are failing to complete. Specifically Vehicle Domain Controller \(VDC\) PIVI and Gateway Module A \(GWM\). These vehicles have now been stopped from further SOTA attempts and require a wired intervention.
- [D061 Defender 15MAY26](/bulletins/11033342.md), 2026-06-03, Other: ENGINE. Turbocharger Coolant Feed / Return Leak
- [D011 Defender 15MAY26](/bulletins/11033281.md), 2026-06-03, Other: UNKNOWN OR OTHER. Coolant Bypass Hose Leak
- [D006 Defender 15MAY26](/bulletins/11033277.md), 2026-06-03, Other: UNKNOWN OR OTHER. The transfer case clutch and / or All Wheel Drive \(AWD\) lock cannot perform as designed. This may show as a reduction in torque to the front axle during driving or as an inability to apply the AWD lock.
- [SSM76404 \- 12MAY26](/bulletins/11033261.md), 2026-06-03, Service bulletin: UNKNOWN OR OTHER. Vehicles may exhibit a ‘clicking’ noise from the rear of the vehicle. The noise may be heard from one or both sides of the vehicle when moving forwards or backwards. Action:
- [N892v3 \- 01MAY26](/bulletins/11033241.md), 2026-06-03, Service bulletin: ENGINE. Arduous customer drive cycles have been found to accelerate the degradation of engine oil, leading to generation of engine oil sludge deposits in high pressure engine oil galleries of the engine and inside the Continuous Variable Valve Lift \(CVVL\) unit.
- [N869 Defender 17APR26](/bulletins/11032424.md), 2026-05-07, Other: UNKNOWN OR OTHER. Software Over The Air \(SOTA\) updates are failing to complete
- [D061 Defender 17APR26](/bulletins/11032407.md), 2026-05-07, Other: ENGINE. Turbocharger Coolant Feed / Return Leak
- [D011 Defender 17APR26](/bulletins/11032376.md), 2026-05-06, Other: ENGINE. Engine coolant may leak from the coolant bypass hose assembly. The leakage is in the form of a weep, but forms into a more substantial leak over time.
- [D006 Defender 17APR26](/bulletins/11032373.md), 2026-05-06, Other: UNKNOWN OR OTHER. The transfer case clutch and / or All Wheel Drive \(AWD\) lock cannot perform as designed. This may show as a reduction in torque to the front axle during driving or as an inability to apply the AWD lock.

More: [the next page](/v1/vehicles/2023_land-rover_defender/bulletins?cursor=2026-05-06_11032373) (JSON)

JSON: [/v1/vehicles/2023_land-rover_defender/bulletins](/v1/vehicles/2023_land-rover_defender/bulletins)

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