Replacement 6L45 / 6L50 Transmission Prices:
To get an estimate on a rebuilt 6L45 / 6L50, click Get a Free Estimate.
What Transmission Do I Have?
6L45 Vehicle Compatibility – Makes & Models
2013–2015: Cadillac ATS
2010–2013: Cadillac SLS
2007–2010: BMW X3
2007+: BMW 330i / 328i / 325i / 323i / 320i / 318i / 316i
2007+: BMW 130i / 128i / 125i / 120i / 118i / 116i
2009+: BMW X1
6L50 Vehicle Compatibility – Makes & Models
2007–2011: Cadillac SLS
2007–2011: Cadillac STS
2007–2009: Cadillac SRX
2008+: Cadillac CTS
2015-+: Chevrolet Colorado
6L45 / 6L50 Transmission Diagnostic Trouble Codes | DTC
| Trouble Code | Description |
|---|---|
| P0711 | Transmission Fluid Temperature Sensor Circuit Range/Performance |
| P0712 | Transmission Fluid Temperature Sensor Circuit Low Input |
| P0713 | Transmission Fluid Temperature Sensor Circuit High Input |
| P0714 | Transmission Fluid Temperature Sensor Circuit Intermittent P0715 |
| P0715 | Input/Turbine Speed Sensor Circuit |
| P0716 | Input/Turbine Speed Sensor Circuit Range/Performance |
| P0717 | Input/Turbine Speed Sensor Circuit No Signal |
| P0718 | Input/Turbine Speed Sensor Circuit Intermittent |
| P0720 | Output Speed Sensor Circuit |
| P0721 | Output Speed Sensor Circuit Range/Performance |
| P0723 | Output Speed Sensor Circuit Intermittent |
| P0729 | Gear 6 Incorrect Ratio |
| P0730 | Incorrect Gear Ratio |
| P0731 | Gear 1 Incorrect Ratio |
| P0732 | Gear 2 Incorrect Ratio |
| P0734 | Gear 4 Incorrect Ratio |
| P0735 | Gear 5 Incorrect Ratio |
| P0740 | Torque Converter Clutch Circuit Malfunction |
| P0741 | Torque Converter Clutch Circuit |
| P0742 | Torque Converter Clutch Circuit Stuck On |
| P0744 | Torque Converter Clutch Circuit Intermittent |
| P0748 | Pressure Control Solenoid 'A' Electrical |
| P0750 | Shift Solenoid 'A' |
| P0753 | Shift Solenoid 'A' Electrical |
| P0755 | Shift Solenoid 'B' |
| P0758 | Shift Solenoid 'B' Electrical |
| P0767 | Shift Solenoid 'D' Stuck On |
| P0850 | Park/Neutral Switch Input Circuit |
| P0897 | Transmission Fluid Deteriorated |
| P0973 | Shift Solenoid A Control Circuit Low |
| P0976 | Shift Solenoid B Control Circuit Low |
| P0977 | Shift Solenoid B Control Circuit High |
| P0979 | Shift Solenoid C Control Circuit Low |
| P0980 | Shift Solenoid C Control Circuit High |
| P0982 | Shift Solenoid D Control Circuit Low |
| P0983 | Shift Solenoid D Control Circuit High |
| P0984 | Shift Solenoid E Control Circuit Range/Performance |
6L45 / 6L50 Transmission Technical Service Bulletins | TSBs
TSB 07-07-30-032B – Ignition key sticks, shifter binds, “shift to park” message displayed, dead battery – 5L40 Transmission | 5L50 Transmission | 6L50 Transmission | 6L80 Transmission
2007 – 2008 Cadillac SRX – 2007 – 2008 Cadillac STS – 2007 – 2008 Cadillac STS-V – 2008 Cadillac CTS
Problem – Owners may notice that the shifter seems to bind when shifting into gear or park. The ignition key may stick or be difficult to remove (SRX only). A “shift to park” message may be constantly displayed in the driver information display screen, resulting in a dead battery.
Solution – These transmission problems may be caused by out of adjustment shift linkage, a slow Brake Transmission Shift Interlock mechanism, or a Park Confirmation microswitch that is not closed.
TSB PIP4570B – Erratic torque converter clutch operation, metallic debris in the oil pan, and/or P0741, P0751 DTC – 6L50 Transmission
2008 – 2009 Cadillac CTS – 2008 – 2009 Cadillac SRX – 2008 – 2009 Cadillac STS
Problem – Drivers may notice erratic torque converter operation, which can include erratic shifting and unexpected engine stalling.
Solution – These 6L50 transmission problems can be caused by de-bonding of the TCC friction material. This can lead to internal transmission damage, possibly requiring a transmission rebuild or remanufactured transmission. At the very least the torque converter itself may need to be replaced.
Common Problems with the 6L45 / 6L50
Lack of Response
Leaking Fluid
Low Fluid
Burning Smell
Grinding or Shaking
Whining, Clunking or Humming
Refuses to Go Into Gear
Torque Converter Issues
Valve Body Issues
Transmission Noisy in Neutral
Gears Slipping
No 3rd or 4th Gear
No 1st or 2nd Gear
No Reverse
Dragging Clutch
Trouble Codes / Check Engine Light
How to Buy a Remanufactured 6L45 / 6L50 Transmission
1) Buying Locally
When you go to your local repair shop, they’ll order a remanufactured 6L45 / 6L50 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 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.
Watch the Remanufacturing Process
How it Works
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 6L45 / 6L50 Transmission?
Click Get a Free Estimate for an unbeatable price on a replacement remanufactured transmission.
What Transmission Do I Have?
Truck doesn’t go into gear
I am in the process of finding a 6l50 to back up my new (2018 crate) 2.8l duramax that will be retrofit into my 1991 toyota land cruiser.
Do you build custom transmissions for special projects this one?
Truck doesn’t go into gear