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Service bulletin PIP4365

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 id10024522
Published by NHTSA2008-04-23
Manufacturer's numberPIP4365
Manufacturer's date2011-04-01
ReplacesPIP-4365C
NHTSA componentPOWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)

NHTSA's summary

TRANSFER CASE WILL NOT SHIFT POSSIBLE DTC'S C0387 AND/OR C0569. ON VEHICLES EQUIPPED WITH A MAGNA TRANSFER CASE RPO NQF. *NJ UPDATED 3/15/10. *PE UPDATED ON 6/27/2011. *KB

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

Transmission and driveline, Transfer case

Trouble codes named

C0387, C0569

Vehicles listed
CHEVROLET SILVERADO2007
CHEVROLET SILVERADO2009
CHEVROLET SILVERADO 15002008, 2009 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002008, 2009 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002008, 2009 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA2008, 2009
GMC SIERRA 15002007 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 15002009 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002007 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002009 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002007 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002009 (the catalog's model; the bulletin names a series or trim of it)

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
PIP4885H2024-04-15. Service bulletin. NQG 4WD Models With Noise Vibration On Dry Pavement.
PIP4885G2024-04-15. Service bulletin. NQG 4WD Models With Noise Vibration On Dry Pavement.
PIP4885F2024-04-15. Service bulletin. Vibration On Dry Pavement.
PIP4885E2024-04-15. Service bulletin. NQG 4WD Models With Noise Vibration On Dry Pavement
PIP3366C2018-08-20. Service bulletin. This Preliminary information communicates to the dealer technician thatLight Duty Trucks equipped with automatic transmissions and 4 wheel drive may exhibit a condition of grinding/ratcheting type noise when shifting the automatic transmission into park while the transfer case is in 4 wheel drive low (4LO) range. Dealers technician's are advised this condition should be deemed a normal characteristic of 4WD low operation.
060089026N2018-06-04. Service bulletin. This warranty bulletin provides labor operation numbers for customer concerns that cant be duplicated.
PIP4101B2017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have a Service 4WD light on and the system inoperative. Technician may find Diagnostic Trouble Code B2725 set. Technician will need to replace the transfer case dash switch.
PIP4885F2017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have a groan, growl, or moan coming from the vehicle when operating the vehicle in four wheel drive. Driving on clean, dry pavement in Four-Wheel Drive High or Four-Wheel Drive Low for an extended period of time may cause premature wear on your vehicle's power train. Dealer should advise the customer not drive on clean, dry pavement in Four-Wheel Drive High or Four-Wheel Drive Low for extended periods of time.
PIP4885H2017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have a groan, growl, or moan coming from the vehicle when operating the vehicle in four wheel drive. Driving on clean, dry pavement in Four-Wheel Drive High or Four-Wheel Drive Low for an extended period of time may cause premature wear on your vehicle?s power train. Dealer should advise the customer not drive on clean, dry pavement in Four-Wheel Drive High or Four-Wheel Drive Low for extended periods of time.
PIP4885G2017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have a groan, growl, or moan coming from the vehicle when operating the vehicle in four wheel drive. Driving on clean, dry pavement in Four-Wheel Drive High or Four-Wheel Drive Low for an extended period of time may cause premature wear on your vehicle's power train. Dealer should advise the customer not drive on clean, dry pavement in Four-Wheel Drive High or Four-Wheel Drive Low for extended periods of time.