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Discussion Starter · #1 · (Edited)
I had my New HHR LT2 for 2 days when it had an electrical problem. The gauges were all going up and down, messages flashing and svc lights all on. It was bucking down the road like the trannie was not shifting right. The dealer replaced the ECM and 2 days later ... same problem. I was traveling on the FL T/P about 75 mph when it started again. There was a post with a similar problem but it was a while ago. Anyone know the resolution?
 

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Re: 2008 hevy HHR LT2 electrical problem

Had a similar issue with one and replaced ecm and concern came back ended up replacing alternator to correct concern, just a little input. hopefully helpful
 
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