Cadillac CT6 Fault Codes
You can find common Cadillac CT6 fault codes on this page that when clicked take you to a detailed description.
You can also type in the fault code you are getting below to find a more detailed description.
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Cadillac CT6 Recall Notices
Common Cadillac CT6 Codes
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Cadillac CT6 Recalls
When a car manufacturer detects a problem with a model they put out a recall notice and more often than not offer to fix the problem free of charge.
You can check to see if your Cadillac CT6 has any recall notices on our sister site AutoRecalls.co, sorted by model year.
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Common CT6 Fault Codes
These are the most common CT6 fault codes that people are searching for.
4/10
P0128
Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)
Learn More Fixes
8/10
P0106
Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem
Learn More Fixes P1626
Theft Deterrent Fuel Enable Signal Not Received/ B+ Supply To VCRM A/C Circuit Malfunction
Learn More
- Manufacturer: Cadillac
About the CT6
The CT6 entered the market as the successor to the Cadillac Fleetwood in 2016. The model was only given a single generation before it was replaced by the Cadillac Celestiq in 2020.
While on the market, it represented the largest of the sedan offerings from the American carmaker, above both the CT4 and CT5.
Despite only having a single generation, it did have two notable variants – the CT6-V and CT6-V Blackwing. Both of these were high-performance sports sedans.
The most notable competition for the model came from the Acura RLX, Audi A8, BMW 7-Series, and Mercedes-Benz S Class.
One of the most common issues that CT6 owners faced is fault code P0700. This code indicates that there is a general problem with the transmission control system, which means that only models fitted with an automatic transmission can suffer this code.
In most cases, the code requires a more advanced code scanner to determine the source of the issue. Be sure to first address additional codes that relate to the transmission.
The next most common code is P0128. This code means that the engine coolant is not reaching its operational temperature quickly enough.
This code is so common that Cadillac had to acknowledge it and issue a technical service bulletin (TSB) for it. Unlike most P0128 codes, this was caused by an engine control unit issue, which could be fixed by reprogramming the control unit.
Another common fault code is P0106, which is logged when the MAP sensor is sending a signal that is outside of its allowable range.
Cadillac issued another TSB for this and a number of codes for a joint TSB. It is recommended that owners of models manufactured between 2016 and 2017 inspect their intake manifold bolts for looseness.
