# Service bulletin 2064460/1

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: 10202117
- Published by NHTSA: 2021\-10\-07
- Manufacturer's number: 2064460/1
- Manufacturer's date: 2021\-09\-15
- NHTSA component: ELECTRICAL SYSTEM; EQUIPMENT; STRUCTURE

## NHTSA's summary

Customer statement / workshop findings: Rear side window blind/s do not operate from the individual switches and/or from the drivers door master switches. Technical background: The following most common failure modes should be considered before proceeding with the instructions within the Measure section \-Rear blind/s do not operate following a CAN bus sleep \-Rear blind/s do not operate if the switch operation is a prolonged hold instead of a Press and release operation \-Rear blind/s do not operate following the loss of control module basic settings \-Rear blind/s will also not operate if the Child Lock is on \-Rear blind/s will cease to operate if there are repeated operations of the blind sufficient to trigger a fail safe mode \(usually between 10 to 15 operations in a very short period\) \-As instructed within the owners handbook, the rear blind/swill not operate if window is in the lowered position \-The blind will also not operate in extreme cold temperature for example \-10 degrees Celsius or 14 degrees, Fahrenheit. VERY IMPORTANT: In the event that all the previous recommendations have been checked/confirmed and the issue is still evident, the operative should conduct a software parameter update to all four door control modules 0042, 0052, 00BB, 00BC to restore the functionality of the rear blinds.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10202117-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10202117-9999.pdf)

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

## Components

Body and frame, Electrical system, Equipment and accessories

## Vehicles listed

- 2021 BENTLEY BENTAYGA

## Recalls for the same vehicles and component

- [21V975000](/recalls/nhtsa/21V975000.md), 2021-12-15: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; AIR BAGS:FRONTAL

## Other bulletins for the same vehicles and component

- [2078038/6](/bulletins/11038343.md), 2026-10-07, Service campaign: STRUCTURE:BODY. Service info: Paint Damage/Anomalies \| All Models Customer statement / workshop findings: In rare instances the customer and/or retailer may identify visual damage/anomalies in the paint finish during or post pre\-delivery inspection. These may include: • Uneven sheen or texture • Patchy or blotchy appearance • Inconsistent under lighting • Staining, discolouration, or surface blemishes
- [2057841/5](/bulletins/11037172.md), 2026-09-09, Service bulletin: STRUCTURE:BODY; VISIBILITY/WIPER. Windscreen replacement criteria whilst under manufacturers warranty.
- [2078038/5](/bulletins/11037171.md), 2026-09-09, Service bulletin: STRUCTURE:BODY. Service info: Paint Damage/Anomalies \| All Models
- [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
- [2078395/3](/bulletins/11037156.md), 2026-09-09, Service bulletin: SEATS; STRUCTURE:BODY. Service info: Leather Damage/Anomalies \| All Models
- [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.

JSON: [/v1/bulletins/10202117](/v1/bulletins/10202117)

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