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Uplander V6-3.9L
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A/T - Intermittent Harsh Upshifts/Downshifts, DTC P1811
A/T - Intermittent Harsh Upshifts/Downshifts, DTC P1811
This TSB number 09-07-30-013, dated 07/08/09 has been superceded by TSB number 09-07-30-013A , dated 08/06/09