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Service bulletin PI-0488

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 id10039489
Published by NHTSA2011-08-01
Manufacturer's numberPI-0488
Manufacturer's date2013-05-01
ReplacesPI-0488-C
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

NHTSA's summary

GM: THE TRANSMISSION IS SLIPPING OR HAS NO FORWARD/REVERSE MOVEMENT. *RM UPDATED 4/16/12. *PE UPDATED 6/18/12. *PE UPDATED ON 7/09/2013. *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, Automatic transmission, Transmission control module

Vehicles listed
CADILLAC CTS2010
CADILLAC CTS2012, 2013
CADILLAC ESCALADE2010, 2011, 2012, 2013
CADILLAC ESCALADE ESV2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE2010
CHEVROLET AVALANCHE2012
CHEVROLET AVALANCHE 15002010, 2011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE 15002013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET CAMARO2010, 2011, 2012, 2013
CHEVROLET CORVETTE2010, 2011, 2012, 2013
CHEVROLET EXPRESS2010, 2011, 2012, 2013
CHEVROLET SILVERADO2010, 2011, 2012, 2013
CHEVROLET SUBURBAN2012, 2013
CHEVROLET SUBURBAN 15002010, 2011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE2010, 2011, 2012, 2013
GMC SANANA2010
GMC SAVANA2010, 2011, 2012, 2013
GMC SIERRA2010, 2011, 2012, 2013
GMC SIERRA HYBRID2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2010, 2011, 2012, 2013
GMC YUKON XL2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL 15002010, 2011 (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
13V0010002013-01-02. POWER TRAIN:AUTOMATIC TRANSMISSION; STEERING:COLUMN LOCKING:ANTI-THEFT DEVICE

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
PI0700B2024-04-29. Service bulletin. Shudder Feel While Driving in 40-50 MPH Range.
PI0690B2024-04-29. Service bulletin. MIL Illuminated.
PI0690A2024-04-29. Service bulletin. MIL Illuminated.
147302023-12-18. Service bulletin. Torque Converter Clutch Wear
121382023-12-04. Service bulletin. Transmission Dipstick Tube Fracture
17-NA-0662023-07-25. Service bulletin. This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test.
16-NA-1302023-03-08. Service bulletin. This service bulletin provides information for after installation of a replacement upper valve body, the transmission may have no Reverse and no 2nd gear.
06-00-89-031D2021-09-07. Service bulletin. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
990420002L2021-08-09. Service bulletin. This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.
PI11542021-04-28. Service bulletin. Delayed 1-2 Upshift While Driving at or Below 15 Percent Throttle Condition/Concern Some customers may comment that during the first few launches after a key cycle, they experience a delayed 1-2 upshift. If the vehicle has no diagnostic codes, the delay in the 1-2 shift may be driver induced. If the vehicle has diagnostic codes, address these diagnostic codes prior to using this bulletin. On a level surface if the vehicle is launched from a stop at light throttle (less than 15%), then the throttle is closed before reaching 16 km/h (10 mph), then the throttle is opened and held to less than 15%, there could be a 1-2 upshift delay. This delay will last until the vehicle exceeds 24 km/h (15 mph) or the driver drops back to closed throttle.