Nissan Leaf 2011–2015 — technical service bulletin
Bulletin NTB18-045 · NHTSA communication 10143271 · issued Jun 21, 2018
Technical service bulletin
communication type
Electrical System
component
2011–2015
model years
5
vehicle entries
Official summary
2011-2015 LEAF; 12 VOLT BATTERY LOSES CHARGE AND/OR TELEMATICS SERVICES DO NOT WORK This bulletin applies only to vehicles equipped with a 3G Telematics control unit. IF YOU CONFIRM The 12 V battery continuously loses its charge and/or Remote Telematics services do not work. NOTE: DTCs P3131 (SYSTEM SHUTOFF ERROR) and/or P31C2 (TCU) may be found stored. ACTION 1. Refer to page 2, step 2 in the SERVICE PROCEDURE to confirm this bulletin applies to the vehicle being worked on. 2. If this bulletin applies, reprogram the Telematics control unit (TCU).
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.