Replacement 8L45 Transmission Prices:
** Being a 2016+ model, the 8L45 is currently dealer and salvage yard only.
What Transmission Do I Have?
2016+ 8L45 Applications and Compatibility:
| Model |
|---|
| Cadillac CTS |
| Chevy Camaro |
| Chevy Colorado |
| GMC Canyon |
About the 8L45 & Common Problems
The 8L45 is an eight-speed automatic transmission built by GM starting in the 2016+ model years.
8L45 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 |
| P0716 | Input/Turbine Speed Sensor Circuit Range/Performance |
| P0717 | Input/Turbine Speed Sensor Circuit No Signal |
| P0722 | Output Speed Sensor Circuit No Signal |
| P0723 | Output Speed Sensor Circuit Intermittent |
| P0746 | Pressure Control Solenoid 'A' Performance or Stuck Off |
| P0747 | Pressure Control Solenoid 'A' Stuck On |
| P0776 | Pressure Control Solenoid 'B' Performance or Stuck Off |
| P0777 | Pressure Control Solenoid 'B' Stuck On |
| P0796 | Pressure Control Solenoid 'C' Performance or Stuck off |
| P0797 | Pressure Control Solenoid 'C' Stuck On |
| P0826 | Up and Down Shift Switch Circuit |
| P0851 | Park/Neutral Switch Input Circuit Low |
| P0960 | Pressure Control Solenoid A Control Circuit/Open |
| P0962 | Pressure Control Solenoid A Control Circuit Low |
| P0963 | Pressure Control Solenoid A Control Circuit High |
| P0964 | Pressure Control Solenoid B Control Circuit/Open |
| P0966 | Pressure Control Solenoid B Control Circuit Low |
| P0967 | Pressure Control Solenoid B Control Circuit High |
| P0970 | Pressure Control Solenoid C Control Circuit Low |
| P0971 | Pressure Control Solenoid C Control Circuit High |
8L45 Transmission Technical Service Bulletins | TSBs
PIP5437B – Harsh shifts – 8L45 Transmission | 8L90 Transmission
2016 – 2017 Cadillac ATS – 2016 – 2017 Cadillac CT5 – 2016 – 2017 Cadillac CT6 – 2015 – 2017 Cadillac Escalade – 2016 – 2017 Chevrolet Camaro – 2017 Chevrolet Colorado – 2015 – 2017 Chevrolet Corvette – 2017 Chevrolet Express – 2015 – 2017 Chevrolet Silverado – 2017 GMC Canyon – 2017 GMC Savana – 2015 – 2017 GMC Sierra – 2015 – 2017 GMC Yukon Denali
Problem – One of the more common 8L transmission problems is excessively hard or abrupt gear changes.
Solution – The TCM may need to be recalibrated with the latest control software. It could also be caused by one or more of the clutch fill times not being learned by the TCM. In which case, the Service Fast Learn (SFL) procedure will have to be performed. Should the problems persist, the valve body will need to be replaced.
Used 8L45 vs. Rebuilt vs. Remanufactured
If you’re having problems with your 8L45 you’re going to want the most economical solution.
A rebuilt 8L45 will only have a certain number of components that get replaced. So the service life is limited, and the warranty will only last 1-2 years.
A used 8L45 is pulled from a wrecked vehicle, so there’s no telling what may be wrong with it, or how long it will last.
A remanufactured 8L45 on the other hand, is completely remanufactured, and it’s designed to exceed the manufacturer’s original specifications. That way you get a longer service life, along with a 3-year/Unlimited Mile Nationwide Warranty.’
Watch the Remanufacturing Process
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What Transmission Do I Have?
