Hello, Hoping someone can shed some light on this issue I've been having. I have a 2008 Lacrosse and it'* been getting progressively worse about throwing a "Reduced Engine Power" alert. It started early this winter and happened once while I was getting into work. Went in to work, came back out, started and worked fine for several months. Recently, as of last month it did it again with my fiance driving. We took it to the shop at that point and they could not find the issue, checked throttle body that was clear, they theorized there was moisture in the connection points and sprayed in some water displacer and us $100 for their time. I recently had a mechanic friend run the codes for it and it pointe to the pedal sensor, Ordered and replaced that, no difference, in fact worse this morning. A factor may be that I've found is that it is worse in hot and humid weather conditions. It may very well be an electrical issue but I'm not sure where to track it down and shops have been less than helpful with this issue.

Additional information
-Previously I could clear the issue by Turning the car off, removing the key and opening the door
-The Traction control light will also come on occasionally
-The drivers side airbag light is lit constantly lately
-"Service tire monitoring system" is on constantly after aforementioned mechanic friend tried to re-learn the tire positions with a tool. I have a rotation coming up so we figured we'd deal with that at that time.

Any insights into this issue would be appreciated, I'm pretty sure it'* something electrical based on the behavior, but I'm not sure where to look or adjust to fix that problem.

Thank you.

With all of those oddball things together I feel like asking:

- How old is the battery?

- How many volts does it show with everything turned off?

- How many volts does it show when the engine is idling after warming up?

I have the same car and the same problem.Did you get it figured out?

Copied Wayne23'* post from Saturday to the beginning of this new thread.

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