stevedenali

Hey guys, So I have been doing some reading of old 2005/6 brochures from GMC and Cadillac. I have an 2005 Sierra Denali so I was interested. In 2005, the Sierra and Yukon Denali’s are advertised to have 10-way power seats. In 2006, both are advertised to have 8-way power seats. Both years are advertised to have the side lumbar support(I assumed they may had removed this, because a friend has a Chevy 2500HD LT with lumbar but not side support). Then the Escalades are advertised to have 14-way for both of those years. I looked up some images of used ones for sale online, and they all appear to have the exact same controls on the seat. So what I don’t understand is how the Denali’s lost two “ways” for 2006, and how the Escalades have four more “ways” than my truck. I have screenshots of all the info and differences if that’s needed but any help would be great.

Hi, I have a 2005 Sierra Denali. I keep getting a P0131(O2 sensor circuit low bank 1 sensor1) so that’s driver side before the converter. It only comes on after I floor it to get on the highway or am towing and have to floor it. The truck never runs rough or any different it seems with the check engine light on. I just wanted to see if any of you guys have had this happen to you before and If you think it’s a sensor or wiring, or something else....thanks!!