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NHTSA ID Number: 10032558
Manufacturer Communication Number: PIP-4638
Summary
CHEVROLET: DIFFICULT TO SHIFT OR UNABLE TO SELECT ALL GEARS. THE TRANSMISSION IS DIFFICULT TO SHIFT AND/OR IT CANNOT BE SHIFTED INTO ALL GEARS. THIS CONDITION MAY BE CAUSED BY A LOCATOR PIN LEFT IN PLACE THAT WAS MEANT TO BE REMOVED AT THE ASSEMBLY PLANT OR A SHIFT CABLE OUT OF POSITION. (COBALT SS/HHR SS). *PE
Transmission is difficult to shift and or it cannot be shifted into all gears.
This condition may be caused by a locator pin left in place that was meant to be removed at the assembly plant or a shift cable out of position.
Inspect the transmission and shift linkage if the locator pin is still in place remove the pin and discard, retest transmission operation.
5 Affected Products
Vehicles
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- Backward compatible with previous Dexron automatic transmission fluids and can be used as a much-improved replacement for older vehicles/transmissions originally using previous Dexron fluids
- Improved performance over previous Dexron fluids in: friction durability, viscosity stability, aeration and foam control, and oxidation resistance
- Potential to enable improved fuel economy and longer transmission life
- Provides for extended drain intervals. Provides consistent shift performance, even in extreme conditions.
- Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
- Enhanced anti-shudder protection for smooth shifting and maximum power transfer
- Developed with anti-wear technology to help improve transmission durability
- Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
- For use in 95% of vehicles including most CVTs in operation with US registered light duty applications
- High performance conditioning agents prolong seal elasticity to prevent leaks
- Improved durability & transmission life with anti-wear technology to avoid costly repairs
- Enhanced high & low temp performance supports transmission fluid in all weather situations
- Full synthetic formula with advanced additives protects against transmission breakdown better than conventional fluids
- Backward compatible with previous DEXRON automatic transmission fluids and can be used as a much-improved replacement for older vehicles/transmissions originally using previous DEXRON fluids
- Improved performance over previous DEXRON fluids in: friction durability, viscosity stability, aeration and foam control, and oxidation resistance.
- Designed for anti-wear protection and shear stability
- Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
- ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
- Backward compatible with previous DEXRON automatic transmission fluids and can be used as a much-improved replacement for older vehicles/transmissions originally using previous DEXRON fluids
- Improved performance over previous DEXRON fluids in: friction durability, viscosity stability, aeration and foam control, and oxidation resistance
- Potential to enable improved fuel economy and longer transmission life
- Provides for extended drain intervals
- Backward compatible with previous Dexron automatic transmission fluids and can be used as a much-improved replacement for older vehicles/transmissions originally using previous Dexron fluids
- Improved performance over previous Dexron fluids in: friction durability, viscosity stability, aeration and foam control, and oxidation resistance
- Potential to enable improved fuel economy and longer transmission life
- Provides for extended drain intervals
- Enhanced friction durability for smooth transmission performance
- Superior high temperature protection to effectively resist oxidation
- Unsurpassed protection against copper corrosion
- Broad scope of vehicle applications improves workshop efficiency and inventory management
- Premium synthetic blend formula exceeds DEXRON-III H requirements
- Outstanding sludge resistance provides superior transmission life
- Enhanced friction durability improves shifting performance
- Certified and approved by General Motors for all cars and trucks that require DEXRON -VI
- Also satisfied requirements of DEXRON, DEXRON-III H, III, IIE and II
Last update on 2025-04-17 / Affiliate links / Images from Amazon Product Advertising API
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| Subject: | Difficult To Shift Or Unable To Select All Gears |
| Models: | 2008-2010 Chevrolet Cobalt SS, HHR SS |
| Equipped With RPO MU3 Manual Transmission |
Transmission is difficult to shift and or it cannot be shifted into all gears.
This condition may be caused by a locator pin left in place (see photo below) that was meant to be removed at the assembly plant or a shift cable out of position.
Inspect the transmission and shift linkage if the locator pin is still in place remove the pin and discard, retest transmission operation.
If the pin is not found in position inspect the shift cables for being properly seated in the cable bracket, if the cables are out of the bracket reseat the cable or cables and test operation.
If neither of the above conditions are found follow SI to properly diagnose the transmission shifting concern. Also reference the latest version of “Hard or Difficult Shifts with Manual Transaxle” to aid in hard to shift concerns.
PIP4638
https://www.nhtsa.gov/recalls?nhtsaId=10032558
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