Thread: 8l90
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Old 05-19-2022, 06:50 PM
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vet57air vet57air is offline
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Had my appointment with a Pacific GM dealer today. They treated me very well. Spent a couple hours testing to checkout the P18C2 code which is "internal mode switch". Next step is taking the pan off so we have ordered a mode switch in case that ends up being the problem. Still have not heard back from GM on warranty or extra shift detent.
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