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Service bulletin SB-07-06-04-019A

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 id10028831
Published by NHTSA2009-06-02
Manufacturer's numberSB-07-06-04-019A
Manufacturer's date2015-06-01
ReplacesSB-07-06-04-019E
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

GENERAL MOTORS: INTERMITTENT MIL/SES/ DTC P2138 WITH REDUCED ENGINE POWER (REPAIR INSTRUMENT PANEL (IP) TO BODY HARNESS CONNECTOR). 2005-08 GM PASSENGERS CARS/LIGHT DUTY TRUCKS (INCL. SATURNS). *PE UPDATED 11/5/10. *PE UPDATED 4/4/11. *PE UPDATED 2/3/16. *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

Electrical system, Engine, Transmission and driveline, Automatic transmission, Instrument cluster, Transmission control module

Trouble codes named

P2138

Vehicles listed
CHEVROLET AVALANCHE 15002005, 2006 (the catalog's model; the bulletin names a series or trim of it)
GMC ACADIA2007, 2008
GMC C45002008
GMC C55002006
GMC C55002008
GMC CANYON2005, 2006, 2007, 2008
GMC ENVOY2005, 2006
GMC ENVOY2008
GMC ENVOY 3602005, 2006, 2007, 2008 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY DENALI2006 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY DENALI XL2006 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY XL2006 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY XL 3702005, 2006 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY XUV2005 (the catalog's model; the bulletin names a series or trim of it)
GMC JIMMY CLASSIC2005
GMC SAFARI2005
GMC SAFARI (GMC)2005 (the catalog's model; the bulletin names a series or trim of it)
GMC SAVANA2005, 2006, 2007, 2008
GMC SAVANA 15002005, 2006, 2007, 2008 (the catalog's model; the bulletin names a series or trim of it)
GMC SAVANA 25002005, 2006, 2007, 2008 (the catalog's model; the bulletin names a series or trim of it)
GMC SAVANA 35002005, 2006, 2007, 2008 (the catalog's model; the bulletin names a series or trim of it)
GMC SAVANNA2006
GMC SIERRA2005, 2006, 2007, 2008
GMC SIERRA 15002005, 2006, 2007, 2008 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 1500 HD2005 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002005, 2006, 2007, 2008 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002005, 2006, 2007, 2008 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA CLASSIC2005, 2006, 2007 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI2008 (the catalog's model; the bulletin names a series or trim of it)
GMC SILVERADO2005 to 2007
GMC SONOMA2005 to 2006
GMC SONOMA CREW2005
GMC TOPKICK2005
GMC TOPKICK2007
GMC W35002005
GMC W45002005
GMC W55002005
GMC YUKON2005, 2006, 2007, 2008
GMC YUKON DENALI2005, 2006, 2007, 2008 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI XL2005, 2006, 2007, 2008 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON HYBRID2008 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2005, 2006, 2007, 2008
GMC YUKON XL 15002005, 2006, 2007, 2008 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL 25002005, 2006, 2007, 2008 (the catalog's model; the bulletin names a series or trim of it)
HUMMER H22005, 2006, 2007, 2008
HUMMER H32006, 2007, 2008
SAAB 9-7X2005, 2006, 2007, 2008
SATURN ASTRA2008
SATURN AURA2007, 2008
SATURN AURA HYBRID2008 (the catalog's model; the bulletin names a series or trim of it)
SATURN ION2005, 2006, 2007
SATURN L3002005
SATURN OUTLOOK2007, 2008
SATURN RELAY2005, 2006, 2007
SATURN RELAY2008
SATURN SATURN L SERIES2005
SATURN SKY2007, 2008
SATURN VUE2005, 2006, 2007, 2008
SATURN VUE HYBRID2008 (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.

Recalls for the same vehicles and component
14V2240002014-04-30. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:FLOOR SHIFT; POWER TRAIN:AUTOMATIC TRANSMISSION
12V4600002012-09-18. POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL)
08V3130002008-07-11. POWER TRAIN:AUTOMATIC TRANSMISSION
08V2000002008-05-05. POWER TRAIN:AUTOMATIC TRANSMISSION

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
10285B2024-02-12. Service bulletin. Vehicle Vibration - Reprogram Powertrain Control Module
10054E2024-02-12. Service bulletin. Special Coverage Adjustment - Fuel Level Sensor Contact Wear
PIT52082023-12-26. Service bulletin. Fuel Gauge Shows Empty After Refueling And DTC P2636.
PIT5195B2023-12-26. Service bulletin. Speedometer Needle Accuracy Information.
PIT51952023-12-26. Service bulletin. Speedometer Needle Accuracy Information
PIT4534D2023-12-26. Service bulletin. Diagnostic Tip - Driver Information Center (DIC) Switch Buttons Are Inoperative.
14152A2023-12-18. Service bulletin. Transmission Shift Cable Fracture
PIT52082023-12-11. Service bulletin. Fuel Gauge Shows Empty After Refueling And DTC P2636.
PIT5195B2023-12-11. Service bulletin. Speedometer Needle Accuracy Information.
PIT51952023-12-11. Service bulletin. Speedometer Needle Accuracy Information