Chevrolet Avalanche 2011 — technical service bulletin
Bulletin PIT5124A · NHTSA communication 10112598 · issued Nov 21, 2012
Technical service bulletin
communication type
Equipment
component
2011
model years
10
vehicle entries
Official summary
This Preliminary Information communication provides information to the technician about vehicles that within 10 seconds after startup the radio will mute and phone icon displays on the radio for up to 15 seconds and then returns back to normal operation. Technician will need to use the OnStar system to contact a OnStar advisor and request a full unit configuration. Technician will need to contact General Motors Technical Assistance Center if the concern is still present.
Vehicles covered
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.