Remanufactured 6T40 / 6T45 Transmissions: Specs & Updates

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Need a replacement transmission? Get an estimate for replacement transmissions and local installation. Look up your transmission model by vehicle make and model.

What Transmission Do I Have?

Replacement 6T40 / 6T45 Transmission Prices:

6T40 / 6T40E Applications and Compatibility:

Beginning in the 2008 model year, the 6T40 is a six speed automatic transmissions produced by General Motors. The 6T40 (also referred to as GF6) first was installed in the 2008 Chevrolet Malibu, available with the 2.4L LE5 Ecotec engine making 164 horsepower (122 kW), adn is now installed in the Cruze and Buick LaCrosse. There is no band in the 6T40–it is completely clutch to clutch shifting, eliminating the “band” used on other designs. The 6T40 is an “on-axis” design–Ford also produces a similar variant called the 6F35.

6T40 Transmission & 6T45 Transmission Technical Service Bulletins | TSBs

6T40 Transmission & 6T45 Transmission Recalls

Recall 09V073000 / 09041 Transmission shift cable clip failure
2009 Buick Enclave, 2009 Chevrolet Cobalt, 2009 Chevrolet HHR, 2009 Chevrolet Malibu, 2009 Chevrolet Traverse, 2009 GMC Acadia, 2009 Pontiac G5, 2009 Pontiac G6, 2009 Saturn Aura, 2009 Saturn Outlook

Summary –
On 276,729 2009 GM vehicles, the transmission shift cable adjustment clip may come loose, causing the gear indicator to display the wrong gear.

Consequence –
If this problem occurs, the driver could remove the ignition key and exit the vehicle thinking the transmission is in Park, even though it isn’t. This can lead to a rollaway, which can cause injury and/or property damage. A lesser consequence would be the inability to start the vehicle because the transmission is not in Park.

Remedy –
This recall began on March 24, 2009, and Chevrolet dealers were instructed to inspect and if necessary, replace the shift adjustment cable clip. Concerned owners can contact the National Highway Traffic Safety Administration at 1-888-327-4236

6T40 Transmission & 6T45 Transmission Technical Service Bulletins | TSBs

TSB PI0324F – No forward, no reverse, engine will not crank, engine will not start – 6T30 Transmission | 6T40 Transmission | 6T45 Transmission | 6T50 Transmission
2011-2014 Buick LaCrosse – 2011-2014 Buick Regal – 2012-2014 Buick Verano – 2013-2014 Buick Encore – 2011-2013 Chevrolet Malibu – 2011-2014 Chevrolet Cruze – 2011-2014 Chevrolet Equinox – 2012-2014 Chevrolet Captiva Sport – 2012-2014 Chevrolet Orlando – 2012-2014 Chevrolet Sonic – 2013 Chevrolet Malibu Eco – 2013-2014 Chevrolet Trax – 2011-2014 GMC Terrain
Problem – Some of the symptoms of this problem include; the transmission will not engage, the engine cranks but will not start, transmission fluid leaks, unusually harsh shifts, transmission slipping, certain transmission gears will not engage. These diagnostic trouble codes may also be present; P0776, P0796, P2714, P2723.
Solution – These problems may be caused by low line pressure due to a damaged transmission pump.

TSB PI0376A – Flare or slipping on the 2-6 shift – 6T40 Transmission | 6T45 Transmission
2011 Buick LaCrosse – 2011 Buick Regal – 2011 Chevrolet Cruze – 2011 Chevrolet Equinox – 2011 Chevrolet Malibu – 2011 GMC Terrain (equipped with 4 Cylinder Engine and 6T40 or 6T45)
Problem – When this common 6T40/6T45 transmission problem occurs, the driver may experience slipping and/or a sudden flare/surge when the transmission shifts into or out of 2nd/6th gear.
Solution – This problem is often caused by debris blocking the opening on the channel plate and spacer plate that provides oil to the 2-6 clutch regulator valve. To correct the issue, the channel plate, spacer plate and valve body will have to be cleaned

Common Problems with the 6T40 / 6T45

Common problems with the 6T40 / 6T45 transmission include erratic shifting behavior, slipping between the gears, hard shifts, delayed shifts, and loss of forward and/or reverse gears.

Another common problem is overheating. This happens when the moving parts inside the transmission are creating more friction heat than the ATF can remove. The most common cause of this condition is towing heavy loads, driving in stop/go traffic, or on mountain roads where the transmission has to shift a lot.

Updates to Remanufactured 6T40 / 6T45 Transmissions

• Torque converter support bearing fully inspected to prevent sleeve failure.
• Completely remanufactured pump, including polishing of pump rotor mating surfaces, provides consistent internal pressures and helps eliminate pressure-related issues.
• Remanufactured and tested valve body to improve shifting, lubrication, and performance.
• Transmission Control Module (TCM) tested for proper function of pressure control solenoids, shift solenoids, and pressure switches.
• Clutch clearances set to custom-spec standards for improved shift feel and timing.
• Bushings and machined surfaces polished to a mirror-like OE finish of 15 RA or less.
• Fully remanufactured torque converter is tested for leaks, lock-up, concentricity, and balance. Upgrades exceed OE requirements and eliminate the possibilities of front seal leaks, premature bushing wear, and vibration.
• All new, bushings installed in key locations to improve internal fluid flow control and fluid pressures.
• Complete system correction and recalibration kit installed to address several OE flaws. Modifications include updates to servos, the PR system, and valve body accumulators.
• Complete road simulation using a dynamometer testing program called C.A.R.S. (Computer Aided Road Simulation). Every transmission is cold and hot tested before shipment.

How to Buy a Remanufactured 6T40 / 6T45 Transmission

1) Buying Locally

When you go to your local repair shop, they’ll order a remanufactured 6T40 / 6T45 transmission, then mark up the price. So at the end of the day, you’ll be paying 15% to 30% more than the actual cost of the unit.

2) Buying Online

Buying a reman transmission through a company like Street Smart Transmission will save you a considerable amount of money because you pay the wholesale price (avoiding a repair shop’s 15% to 30% markup), they’ll ship the unit to the shop of your choice free of charge, and returning your old transmission is free as well. Then all you have to pay for is the labor to install the unit (usually $400 to $800), and you’re on your way.

How Does it Work?

To order a remanufactured 6T40 / 6T45 transmission from a company like Street Smart Transmission, all you need to do is provide your vehicle’s VIN number, the mileage, and the address of the repair shop that you want it shipped to.

Financing

Replacing a transmission can be expensive, so Street Smart Transmission offers financing through PayPal Credit. Depending on your credit, you’ll be able to order a new transmission, get back on the road, then pay for it over time. You may have to pay labor charges for the installation up front, but you won’t have to shell out for the transmission all at once.

Shipping Charge/Location

When it comes to shipping, a transmission is quite heavy. So you’re going to pay quite a bit of money, unless the reman transmission company offers free shipping. Street Smart offers free shipping to a business address, which is usually the repair shop that you’ve chosen to install the unit.

What is a Core Charge (Core Deposit)?

Every remanufactured transmission originally came from somebody else’s car. Therefore, they need your broken transmission in order to refurbish it for another customer.

Your old/damaged transmission is called a “core”, and many companies will collect a core charge (usually $500 to $1500), which will be refunded once they receive your old transmission. (Street Smart does not charge an up-front core charge.) Make sure to ask any company for their core return policy, so you’ll know what to expect.

Our Recommendation

We recommend Street Smart Transmission. We have found Street Smart to be of the highest quality. Their transmissions carry a 3 year / unlimited miles warranty that covers both parts and labor. Their warranty is nationwide and attached to the VIN so it is transferable with ownership if you decide to sell the vehicle. It also covers both parts and labor for the installation of the replacement transmission.

Finding a Shop to Install the Remanufactured Transmission

If your transmission has failed, you’re going to need a skilled mechanic to replace it. You can find a shop to install your transmission using our shop locator map.

For warranty purposes, you need to find a reliable repair shop. That way, if the replacement transmission doesn’t work properly, the warranty will cover it.

Ready to Replace Your 6T40 / 6T45 Transmission?

Click Get a Free Estimate for an unbeatable price on a replacement remanufactured transmission.

Need a replacement transmission? Get an estimate for replacement transmissions and local installation. Look up your transmission model by vehicle make and model.

What Transmission Do I Have?