# Service bulletin 2066850/1

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: 10211146
- Published by NHTSA: 2022\-05\-06
- Manufacturer's number: 2066850/1
- Manufacturer's date: 2022\-04\-20
- NHTSA component: EXTERIOR LIGHTING; ELECTRICAL SYSTEM

## NHTSA's summary

Rear lamp electrical defect \- Numerous DTC's evident. Customer statement / workshop findings \- Rear lamp warning within the DIP \- Numerous DTCs within diagnostic address 46 \(J393\) \- Faulty rear lamp operation Refer to the examples below showing the most popular DTCs which have been evident in conjunction with the afore mentioned symptoms B11E913: Left rear turn signal bulb Open circuit B133413: Right Brake/Turn Signal Lamp Open circuit B16D5F4: Left tail light 2 turn signal lamp failure B12C213: Left Tail Light Lamp Open circuit B12C313: Right brake light bulb Open circuit B16D5F2: left tail lamp 2 Tail lamp faulty B16D7F1: Right rear tail lamp 2 LED faulty Technical background Should the symptoms described be evident please refer to the Measure section of this TPI

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10211146-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10211146-9999.pdf)

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

## Components

Electrical system, Lighting

## Trouble codes named

B11E9, B12C2, B12C3, B1334, B16D5, B16D7

## Vehicles listed

- 2021 to 2022 BENTLEY BENTAYGA

## Other bulletins for the same vehicles and component

- [2061369/14](/bulletins/11037161.md), 2026-09-09, Service bulletin: ELECTRICAL SYSTEM; ENGINE. Engine Overheating \- Warning in the DIP \| V8 Kovomo. Customer statement / workshop findings: One or a combination of the following symptoms are evident • Engine overheat warning in the DIP \(Engine overheating\) • Unusual cooling fan operation at high temperatures • P19F700: Low engine coolant temperature indicator lamp coolant too warm • Signs of coolant in the vacuum hoses for switch valve N649
- [2061369/13](/bulletins/11037097.md), 2026-09-05, Service bulletin: ELECTRICAL SYSTEM; ENGINE. Engine Overheating \- Warning in the DIP \| V8 Kovomo. Customer statement / workshop findings: One or a combination of the following symptoms are evident: • Engine overheat warning in the DIP \(Engine overheating\) • Unusual cooling fan operation at high temperatures • P19F700: Low engine coolant temperature indicator lamp coolant too warm • Signs of coolant in the vacuum hoses for switch valve N649
- [2078373/4](/bulletins/11036783.md), 2026-09-03, Service bulletin: VISIBILITY/WIPER; STRUCTURE:BODY; ELECTRICAL SYSTEM. Sunroof blind not retracting \| Bentayga Series. Customer may report that the sunroof blind is stuck in the closed position and cannot be opened using interior controls. The Sunroof blind is stuck due to uneven/ruffled or crumped during open or closing
- [2081085/2](/bulletins/11035939.md), 2026-08-06, Service bulletin: ELECTRICAL SYSTEM; ENGINE. V8 Engine \- Ticking Noise, Misfiring and Possible Low Oil Pressure Indications. Customer statement: The customer may report an audible ticking noise from the top of the engine, low oil pressure warnings / MIL on the Driver Information Panel, and/or misfiring during engine operation
- [2073377/4](/bulletins/11035933.md), 2026-08-06, Service bulletin: WHEELS; ELECTRICAL SYSTEM. TPMS \- Warning within the Drivers Information Panel \(DIP\) \- Tyre pressure sensor \- Low battery.
- [2078373/3](/bulletins/11035932.md), 2026-08-06, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM; VISIBILITY/WIPER. Sunroof blind not retracting \| Bentayga Series.
- [2082308/1](/bulletins/11035915.md), 2026-08-06, Service bulletin: ELECTRICAL SYSTEM. Satellite Values Not Displayed in MVBs \- J949 Emergency Call Control Module \(Conbox\). Customer statement / workshop findings: During diagnosis using ODIS, Measured Value Blocks \(MVBs\) for: Visible satellites, tracked satellites \(within J949 Emergency Call Control Module – Conbox\) may display blank or no value. This condition may be interpreted as a GPS reception fault, antenna issue or connectivity malfunction. Diagnostic logs may also show absence of satellite values.
- [2051187/13](/bulletins/11035901.md), 2026-08-05, Service bulletin: ELECTRICAL SYSTEM; ENGINE. Poor Engine Running Complaints \(Misfires\) Petrol Engines Only. Customer statement / workshop findings: • Poor engine running • Reduced power • Engine warning lamp illuminated • Symptom related DTC’s evident within the applicable engine control unit\(s\)
- [2059392/7](/bulletins/11035895.md), 2026-08-05, Service bulletin: ELECTRICAL SYSTEM; BACK OVER PREVENTION: WARNINGS. Bentayga \- PDC system not working or PDC system false detection. Customer statement: • PDC system not working or PDC system false detection • Warning evident within the DIP
- [2080680/2](/bulletins/11035585.md), 2026-08-04, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM; VISIBILITY/WIPER. Organ stop air regulator jammed / broken / electrical value wrong reading. Customer Statement: Airflow from the organ stops \(air regulators\) is not functioning correctly; vents may be stuck, broken, or showing incorrect operation.

JSON: [/v1/bulletins/10211146](/v1/bulletins/10211146)

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