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Service bulletin PIP-4651

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10032886
Published by NHTSA2010-06-08
Manufacturer's numberPIP-4651
Manufacturer's date2009-06-01
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's 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. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Transmission and driveline, Automatic transmission

Trouble codes named

P1811

Vehicles listed
CHEVROLET COBALT2007, 2008, 2009
CHEVROLET HHR2007, 2008, 2009
CHEVROLET MALIBU2007, 2008, 2009
SATURN AURA2007, 2008
SATURN ION2007
SATURN VUE2007, 2008, 2009

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
14V2240002014-04-30. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:FLOOR SHIFT; POWER TRAIN:AUTOMATIC TRANSMISSION
12V4600002012-09-18. POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL)
09V0730002009-03-06. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT
08V2000002008-05-05. POWER TRAIN:AUTOMATIC TRANSMISSION

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
10285B2024-02-12. Service bulletin. Vehicle Vibration - Reprogram Powertrain Control Module
14152A2023-12-18. Service bulletin. Transmission Shift Cable Fracture
10285B2023-12-11. Service bulletin. Vehicle Vibration - Reprogram Powertrain Control Module
06-00-89-031D2021-09-07. Service bulletin. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
06-00-89-031D2021-04-20. Service bulletin. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
150089004C2021-03-08. Service bulletin. This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
1308116001F2020-12-07. Service bulletin. The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
080730026F2019-09-23. Service bulletin. This informational bulletin provides information on Some vehicles may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped.
19NA1342019-07-29. Service bulletin. This informational bulletin informs the technician and provides a Service Procedure to correct a shifter sticking or Difficulty selecting Desired Gear condition, possibly caused when field action 14152 was previously performed.
PI0602A2018-06-04. Service bulletin. This preliminary informational bulletin provides a revision of PI0602 to add the 2013 and 2014 model years.