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Service bulletin JTB00446NAS3

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 id10096953
Published by NHTSA2017-04-06
Manufacturer's numberJTB00446NAS3
Manufacturer's date2016-02-05
NHTSA componentELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES

NHTSA's summary

"SITUATION: THE VEHICLE BATTERY MAY BE FLAT OR ONE OF THE FOLLOWING MESSAGES/WARNING LIGHTS MAY BE DISPLAYED ON THE INSTRUMENT CLUSTER. • FAULTY GENERATOR • FAULTY BATTERY MONITORING SYSTEM (BMS) • THE CHARGE WARNING INDICATOR IS ILLUMINATED WHEN THE ENGINE IS RUNNING CAUSE: THE POWER SUPPLY IS A FULLY INTEGRATED SYSTEM THAT REQUIRES SDD TO DIAGNOSE OVERALL FUNCTIONALITY ROBUSTLY TO MAKE SURE CUSTOMER SATISFACTION IS MET VIA RIGHT FIRST TIME DIAGNOSIS."

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, 12-volt battery

Vehicles listed
JAGUAR F-TYPE2014, 2015, 2016
JAGUAR XF2010, 2011, 2012, 2013, 2014, 2015, 2016
JAGUAR XJ2010, 2011, 2012, 2013, 2014, 2015, 2016
JAGUAR XK2010, 2011, 2012, 2013, 2014, 2015

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

Other bulletins for the same vehicles and component
JTB00545NAS12019-05-13. Service bulletin. The Central locking/unlocking feature may not operate after disconnecting and connecting the vehicle startup battery.
SSM742852019-03-25. Service bulletin. Vehicles may exhibit a no start complaint due to a repetitive intermittent flat battery. Initial diagnosis shows no fault found or no measurable quiescent drain.
SSM740482018-11-13. Service bulletin. Customers may complain that the Wireless Head Phones for Dual Screen View or Rear Seat Entertainment are inoperative.
SSM738242018-06-11. Service bulletin. Action: When completing Primary battery diagnosis for Eco Stop concerns, it is recommended to use the Midtronics GRX-3080 battery tester. JLR are currrently investigating a hand held battery tester to replace the Midtronics EXP-1080. The Midtronics EXP-1080 can be used for PD1 and battery checks.
SSM73588 Attachm2018-06-11. Service bulletin. Issue: Customers may report a flat battery or ?Low Battery - Please Start Engine? message after the vehicle has been standing for 24 to 60 hours.
SSM73588 Attachm2018-06-11. Service bulletin. Issue: Customers may report a flat battery or ?Low Battery - Please Start Engine? message after the vehicle has been standing for 24 to 60 hours.
SSM735882018-06-11. Service bulletin. Issue: Customers may report a flat battery or ?Low Battery - Please Start Engine? message after the vehicle has been standing for 24 to 60 hours.
SSM73588 Attachm2018-01-29. Service bulletin. Issue: Customers may report a flat battery or ?Low Battery - Please Start Engine? message after the vehicle has been standing for 24 to 60 hours
SSM73588 Attachm2018-01-29. Service bulletin. Issue: Customers may report a flat battery or ?Low Battery - Please Start Engine? message after the vehicle has been standing for 24 to 60 hours
SSM735882018-01-29. Service bulletin. Issue: Customers may report a flat battery or ?Low Battery - Please Start Engine? message after the vehicle has been standing for 24 to 60 hours