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Service bulletin Q427 UPS7814-3BN

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10102921
Published by NHTSA2017-06-03
Manufacturer's numberQ427 UPS7814-3BN
Manufacturer's date2014-11-04
NHTSA componentEQUIPMENT:MECHANICAL; ELECTRICAL SYSTEM

NHTSA's summary

"SITUATION: A POTENTIAL ISSUE HAS BEEN IDENTIFIED WITH THE DYNAMIC RESPONSE VALVE BLOCK ON CERTAIN 2014-2015 RANGE ROVER SPORT (L494) AND RANGE ROVER (L405) VEHICLES (5.0L S/C V8 ONLY) WITHIN THE LISTED VIN RANGES. UNEXPECTED BODY MOVEMENTS WHEN THE VEHICLE IS STATIONARY MAY BE EXPERIENCED DUE TO THE SYSTEM SELF-TEST PULSE RESULTING IN PRESSURE IN THE ACTUATORS WHICH IS NORMALLY ISOLATE FROM THEM. ACTION: RETAILERS ARE REQUIRED TO HOLD ONLY AFFECTED VEHICLES THAT ARE WITHIN YOUR CONTROL AND REFRAIN FROM RELEASING THE VEHICLES FOR NEW OR USED VEHICLE SALE PENDING COMPLETION OF THE REWORK ACTION DETAILED IN THIS TECHNICAL BULLETIN."

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Equipment and accessories

Vehicles listed
LAND ROVER RANGE ROVER2014, 2015
LAND ROVER RANGE ROVER SPORT2014, 2015

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20154242015-09-24. Accessories
20144362014-10-03. Accessories
14V1630002014-03-31. ELECTRICAL SYSTEM:SOFTWARE; EXTERIOR LIGHTING:TURN SIGNAL

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SSM76411 - 10MAR262026-04-06. Other. Smart Key Deactivated message on instrument cluster and unable to start their vehicle
TUCC_APR2025_182025-05-05. Other. Leaking windshield that caused the water ingress on the electrical component.
LTB00674NAS12023-09-11. Service bulletin. Rear Tweeter Speaker Distortion - High-Line Audio System
SSM758692023-09-08. Service bulletin. Coolant Low Warning Message Displayed On The Instrument Panel Cluster
SSM718642023-07-17. Service bulletin. When returning failed parts through warranty it has been found that the rubber surround is still attached to the camera lens. This applies to both high line and low line rear camera.
Q371NAS22023-07-17. Service bulletin. Service Action: Incorrect Memory Seat Position Switches
SSM760092023-07-11. Service bulletin. A customer may report that the front or rear door latch does not operate as expected.
SFCC_JUN2023_462023-07-10. Service bulletin. A customer may report that the front or rear door latch does not operate as expected.
SSM759492023-03-08. Service bulletin. Tailgate will not close due to anti-trap false signal
SSM75825ATT2023-01-10. Service bulletin. MHEV DC/DC Converter - Squeaking Noise From Inside The Cabin.