Saturn/pontiac/chevrolet: soft shifts, erratic shifts, DTC P1811
Chevrolet technical service bulletin PIP-4651 for 2007-2009 Chevrolet Malibu, 2007-2009 Chevrolet Cobalt and 2007 Saturn Ion and others.
- Bulletin number
- PIP-4651
- Component
- Power train: automatic transmission
- Summary
- Saturn/pontiac/chevrolet: soft shifts, erratic shifts, dtc p1811. Vehicles with a hydramatic 4t45 transaxle may have soft shifts or shifts erratically. These conditions may appear intermittently or set a dtc p1811. During diagnosis, a low or high line pressure (actual versus desired) may be observed.
Owners of these vehicles have filed 920 complaints in the transmission category.
Vehicles covered
- Chevrolet Malibu 2007-2009 200720082009
- Chevrolet Cobalt 2007-2009 200720082009
- Saturn Ion 2007 2007
- Chevrolet HHR 2007-2009 200720082009
- Saturn Vue 2007-2009 200720082009
- Saturn Aura 2007-2008 20072008
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