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RecallGazette

Vehicle problems, recalls & safety intelligence

Buick Century 2000–2016technical service bulletin

Bulletin PIC4935D · NHTSA communication 10112528 · issued Nov 1, 2012

Technical service bulletin
communication type
Electrical System
component
2000–2016
model years
60
vehicle entries

Official summary

This Preliminary Information communication provides information to the technician about vehicles that during battery parasitic drain test, there may be some confusion as to what the normal power consumption reading should be from the OnStar system. Technician should understand the power cycles of the various OnStar systems. All Generation 6, 7, 8, and 9 systems are powered up continuously for 48 hours from ignition off. After 120 hours from ignition off, these systems then completely power off. The Onstar modules draw: * IGN ON - 240 to 400 Milliamp. * IGN OFF - 3 to 20 Milliamp for 48 hours o

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.