WenmarOpen by Wenmar Pro

Service bulletin 3268

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 id10014922
Published by NHTSA2005-05-12
Manufacturer's number3268
Replaces3268B
NHTSA componentPOWER TRAIN

NHTSA's summary

INTERMITTENT UNWANTED DOWNSHIFT, NO UPSHIFT 5L40E/5L50E. *TT

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

Vehicles listed
CADILLAC CTS2003, 2004, 2005, 2006, 2007

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
07V5890002007-12-20. POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT:SEAL
20074172007-12-19. Powertrain

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
08-07-30-026I2024-10-24. Service bulletin. This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped.
24-NA-1412024-08-15. Service bulletin. GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This bulletin advises the dealers to be more careful not to damage the transmissions during removal and to package the core properly for return.
08-07-30-035H2024-06-07. Service bulletin. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
15-00-89-004G2024-05-15. Service bulletin. This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
16-NA-3382024-02-17. Service bulletin. This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns for Canadian Dealers only.
PI1394B2024-02-02. Service bulletin. This PI bulletin advises the technician on the proper way to install the pistons in an engine.
23-NA-2242024-01-13. Service bulletin. This bulletin advises the technician that the 6L50 (MYB), 6L80 (MYC) and 6L90 (MYD) Transmission Oil Filter and Seal Kit part number 24236933 is currently transitioning from a kit to the filter (24236517) and seal (24225347) being sold individually.
03-00-91-001I2023-11-22. Service bulletin. This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns.
23-NA-1532023-09-26. Service bulletin. The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
15-00-89-004F2023-09-08. Service bulletin. This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.