"Issue: the customer may observe a MIL in the instrument cluster relating to the engine system (check...

Bulletin number

SSM72448

Component

Power train: automatic transmission: control module (TCM/PCM/tecm)

Summary

"issue: the customer may observe a mil in the instrument cluster relating to the engine system (check engine light) and one or more codes stored in the PCM relating to heated oxygen sensor (ho2s) in the exhaust system. The code will refer to a fault with the pre, or mid, or post catalyst heated oxygen sensor: p0030, p0031, p00d1, p0130, p0131, p0132, p0133, p0134, p0135, p014c, p2195, p2196, p2231, p2237, p2243, p2245, p2251, p2297, p2626, p2a00, p0050, p0051, p00d3, p0150, p0151, p0152, p0153, p0154, p0155, p2197, p2198, p2234, p2240, p2247, p2254, p0037, p0038, p0054, p0136, p0137, p0138, p0139, p013a, p013e, p0140, p0141, p2270, p2271, p0056, p0057, p0060, p013c, p014a, p0156, p0157, p0158, p0159, p0160, p0161, p2272, p2273, p0042, p0043, p0044, p0055, p0142, p0143, p0144, p0147, p2274, p2275, p0061, p0062, p0063, p0162, p0163, p0164, p0167, p2276, p2277 upon diagnosis no fault is found with the wiring harness or connector and the fault is determined to be with the sensor (having followed the diagnostic information and help text relating to PCM codes as read by sdd). Cause: the root cause has yet to be identified and is currently under investigation."

Owners of these vehicles have filed 25 complaints in the transmission category.