# Service bulletins for the 2020 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.

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

- [SSM76493 \- 25SEP26](/bulletins/11038293.md), 2026-10-07, Other: STRUCTURE:BODY. Accessory Wheel Arch Protection \- Gaps Present Between Protection And Vehicle Body
- [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
- [E002 \- 20JUL26](/bulletins/11035675.md), 2026-08-04, Service bulletin: UNKNOWN OR OTHER. Exhaust System Oxygen \(O2\) Sensors \- Extended Warranty
- [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.
- [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.
- [N811 Defender 15MAY26](/bulletins/11033398.md), 2026-06-04, Other: ELECTRICAL SYSTEM. Door Zone Module \- Quiescent Drain
- [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
- [N811 Defender 17APR26](/bulletins/11032421.md), 2026-05-07, Other: ELECTRICAL SYSTEM. Door Zone Module \- Quiescent Drain
- [N811 Defender 20MAR26](/bulletins/11031092.md), 2026-04-07, Other: ELECTRICAL SYSTEM. Door Zone Module \- Quiescent Drain
- [TUCC\_MAR2026\_28](/bulletins/11030964.md), 2026-04-07, Other: UNKNOWN OR OTHER. While driving with satellite maps, sometimes image doesn't load fully and then comes back
- [TUCC\_MAR2026\_27](/bulletins/11030963.md), 2026-04-07, Other: UNKNOWN OR OTHER. INCONTROL REMOTE APP WAKE UP TIMER
- [TUCC\_MAR2026\_26](/bulletins/11030962.md), 2026-04-07, Other: UNKNOWN OR OTHER. There are several scenarios where the key may be set to a deactivated state.
- [SSM76411 \- 10MAR26](/bulletins/11030751.md), 2026-04-06, Other: ELECTRICAL SYSTEM. Smart Key Deactivated message on instrument cluster and unable to start their vehicle
- [SSM000028 \- 18MAR26](/bulletins/11030743.md), 2026-04-06, Other: UNKNOWN OR OTHER. Wireless Charger \- Charging Interruption With iPhone 15 and 16 Devices
- [Defender\_N869 02\-20\-2026](/bulletins/11029851.md), 2026-03-06, 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.
- [Defender\_N811 02\-20\-2026](/bulletins/11029848.md), 2026-03-06, Other: ENGINE. Door Zone Module \- Quiescent Drain
- [TUCC\_FEB2026\_35](/bulletins/11029600.md), 2026-03-04, Other: ELECTRICAL SYSTEM. There is a concern with the 48Volt charging system\(DC/DC\) with the vehicle.
- [TUCC\_FEB2026\_34](/bulletins/11029598.md), 2026-03-04, Other: ELECTRICAL SYSTEM. There is a concern/fault with the 48Volt MHEV system.
- [TUCC\_FEB2026\_33](/bulletins/11029576.md), 2026-03-04, Other: ELECTRICAL SYSTEM. 12V STARTUP BATTERY FLAT \- MILD HYBRID ELECTRIC VEHICLE \(MHEV\)
- [252602.027 \- 12FEB26](/bulletins/11029556.md), 2026-03-04, Service bulletin: ELECTRICAL SYSTEM. Once the vehicle is powered down via ignition cycle, it may not restart depending on remaining residual charge.
- [TUCC\_JAN2026\_26](/bulletins/11028602.md), 2026-02-06, Other: UNKNOWN OR OTHER. After vehicle off, the fan continues to run at high speeds.
- [TUCC\_JAN2026\_25](/bulletins/11028601.md), 2026-02-06, Other: ELECTRICAL SYSTEM. There is a concern with the 48Volt charging system\(DC/DC\) with the vehicle.
- [TUCC\_JAN2026\_20](/bulletins/11028600.md), 2026-02-06, Other: UNKNOWN OR OTHER. PIVI WIRELESS CARPLAY / ANDROID AUTO CONNECTIVITY

More: [the next page](/v1/vehicles/2020_land-rover_defender/bulletins?cursor=2026-02-06_11028600) (JSON)

JSON: [/v1/vehicles/2020_land-rover_defender/bulletins](/v1/vehicles/2020_land-rover_defender/bulletins)

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