Service bulletin 05-04-21-003
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10017464 |
| Published by NHTSA | 2005-11-09 |
| Manufacturer's number | 05-04-21-003 |
| Manufacturer's date | 2008-01-01 |
| Replaces | 050421003C |
| NHTSA component | POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE) |
NHTSA's summary
SERVICE 4WD LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE (DTC) C0374 SET. *TT UPDATED 10/05/07. *NJ INSPECT WIRING HARNESS TO TRANSFER CASE SPEED SENSORS, REPLACE WIRING HARNESS. UPDATED 7/18/08 *PE
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
C0374
| BUICK RAINIER | 2004, 2005, 2006 |
|---|---|
| CADILLAC ESCALADE | 2003, 2004, 2005, 2006 |
| CHEVROLET AVALANCHE | 2003, 2004, 2005 |
| CHEVROLET AVALANCHE 1500 | 2006, 2007 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET AVALANCHE 2500 | 2006, 2007 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO | 2003, 2004, 2005, 2006, 2007 |
| CHEVROLET SUBURBAN | 2003, 2004, 2005 |
| CHEVROLET SUBURBAN 1500 | 2006, 2007 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SUBURBAN 2500 | 2006 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET TAHOE | 2003, 2004, 2005, 2006, 2007 |
| CHEVROLET TRAILBLAZER | 2003, 2004, 2005, 2006 |
| CHEVROLET TRAILBLAZER 360 | 2007 (the catalog's model; the bulletin names a series or trim of it) |
| GMC ENVOY | 2003, 2004, 2005, 2006 |
| GMC ENVOY 360 | 2007 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA | 2003, 2004, 2005, 2006 |
| GMC SIERRA 1500 | 2007 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 2500 | 2007 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 3500 | 2007 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA CLASSIC | 2007 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON | 2003, 2004, 2005, 2006, 2007 |
| OLDSMOBILE BRAVADA | 2003, 2004 |
| SAAB 9-7X | 2005, 2006, 2007 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
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| PIP4885G | 2024-04-15. Service bulletin. NQG 4WD Models With Noise Vibration On Dry Pavement. |
| PIP4885F | 2024-04-15. Service bulletin. Vibration On Dry Pavement. |
| PIP4885E | 2024-04-15. Service bulletin. NQG 4WD Models With Noise Vibration On Dry Pavement |
| PIP3366C | 2018-08-20. 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. |
| 060089026N | 2018-06-04. Service bulletin. This warranty bulletin provides labor operation numbers for customer concerns that cant be duplicated. |
| PIP4101B | 2017-08-15. 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. |
| PIP4885F | 2017-08-15. 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. |
| PIP4885H | 2017-08-15. 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. |
| PIP4885G | 2017-08-15. 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. |