BUICK, CADILLAC, CHEVROLET, GMC, PONTIAC, SATURN

PIC4541F

2017-01-11 · NHTSA 10113313

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer summary

Original wording in English

This Preliminary Information communication provides information to the technician with a diagnostic tip for the OnStar back-up battery failure. Technician may find Diagnostic Trouble Code B1446 or B1447 and the OnStar LED is red. Technician should never disconnect the main vehicle battery or remove the OnStar fuse with the ignition key in any position other than off.

Repeated filings are grouped only when make, bulletin number, publication date and complete summary agree. Original record numbers are retained. Older publications remain available, and an explicit later version is shown when established. Pre-1994 vehicle associations are separated from default results; an unspecified year does not mean all model years apply.