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Service bulletin 14770

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 id10090097
Published by NHTSA2017-02-01
Manufacturer's number14770
Manufacturer's date2015-03-25
NHTSA componentSEATS; ELECTRICAL SYSTEM:WIRING

NHTSA's summary

14770 - SERVICE UPDATE. THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO INSPECT AND, IF NECESSARY, REROUTE THE SEAT WIRE HARNESS AWAY FROM A SEAT BACK SUSPENSION SPRING ON CERTAIN VEHICLES. ON SOME OF THESE VEHICLES, THE CUT END OF THE LEFT OR RIGHT FRONT SEAT BACK SUSPENSION SPRING MAY CONTACT THE SEAT WIRE HARNESS NEAR THE RECLINER MOTOR. MOVEMENT OF THE SUSPENSION SPRING CAN CAUSE DAMAGE TO SEAT WIRE HARNESS PROTECTIVE SLEEVE AND WIRE INSULATION, WHICH CAN LEAD TO A SHORT CIRCUIT IN THE SEAT WIRE HARNESS.

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, Seats, Wiring and fuses

Vehicles listed
CHEVROLET IMPALA2014, 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
1300890082023-12-11. Service bulletin. GM Wiring Repair Strategy Information
PIC5852C2020-08-10. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that when attempting to start vehicle "No Fob Detected" message is displayed. Technician will find the Key FOB works and the vehicle will start with the key FOB is placed in the pocket. Technician will need to replace the Key FOB with the Key FOB with Passive Entry Passive Start.
100089005G2019-05-13. Service bulletin. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs.
PIC5894A2019-04-08. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have multiple Instrument Panel Cluster warning indicators on and/or warning messages being displayed on the Driver Information Center. Technician may find Diagnostic Trouble Codes U0073, U0077, U0078, U0121, U0126, U0151, U0155, U0164, U0186, U0415, U0422, and U0428. Technician will need to inspect for a pinch DLC branch in the Instrument Panel harness behind the Instrument Panel Carrier.
17NA1542019-03-18. Service bulletin. This technical bulletin provides a procedure to replace the side object detection wiring and harness if inspection finds water and/or corrosion in the harness or modules.
100089005H2019-03-18. Service bulletin. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs.
10-00-89-005C2018-06-04. Service bulletin. This informational bulletin is a revision for 10-00-89-005B to add the 2014 model year and labor codes.
PI13262018-05-21. Service bulletin. This preliminary bulletin provides a procedure to install a new wiring harness if the rear passive entry switch was inoperative due to the wiring harness being to short and pulling the terminal out of the electrical connector.
10-00-89-005E2018-05-21. Service bulletin. This warranty administration bulletin adds the 2016 model year to a communication which provides dealership personnel revised wiring repair labor operations and required additional information.
13-00-89-008A2018-05-07. Service bulletin. This informational bulletin communicates GM wiring repair strategy information.