Dual-Clutch Transmission Clutch A Overheated
2013-2019 Cadillac XTS 3.6L V6
Description
The DCT control module detected excessive temperature on clutch A (odd gears). Clutch material is overheating, which can cause permanent damage.
Symptoms
- Check Engine Light
- Burning smell from transmission
- Transmission shudder in odd gears
- Reduced power mode
- Gear engagement delay
- Clutch slip in 1st/3rd/5th gears
Common Causes
- Aggressive driving in stop-and-go traffic
- Clutch A wear beyond limit
- Insufficient clutch cooling
- TCM clutch adaptation out of range
- Towing beyond vehicle rating
Diagnostic Steps
- Read clutch A temperature PID
- Check clutch adaptation values
- Inspect DCT fluid level and condition
- Review TCM clutch wear counter
- Test clutch cooling system flow
Repair Notes
Allow clutch to cool before driving. If clutch wear limit is reached, clutch assembly replacement is required. Reset clutch adaptations after replacement.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P3040 on Other Vehicles
Cadillac ATS
2013-2019 2.0L Turbo I4
Cadillac ATS
2013-2019 2.5L I4
Cadillac ATS-V
2016-2019 3.6L Twin-Turbo V6
Cadillac CT4
2020-2024 2.0L Turbo I4
Cadillac CT4
2020-2024 2.7L Turbo I4
Cadillac CT4-V
2020-2024 2.7L Turbo I4
Cadillac CT4-V Blackwing
2022-2024 3.6L Twin-Turbo V6
Cadillac CT5
2020-2024 2.0L Turbo I4
Common Questions
What does code P3040 mean on a 2013-2019 Cadillac XTS?
P3040 stands for "Dual-Clutch Transmission Clutch A Overheated". The DCT control module detected excessive temperature on clutch A (odd gears). Clutch material is overheating, which can cause permanent damage.
What are the symptoms of P3040 on a Cadillac XTS?
Common symptoms of P3040 include: Check Engine Light, Burning smell from transmission, Transmission shudder in odd gears, Reduced power mode, Gear engagement delay, Clutch slip in 1st/3rd/5th gears.
What causes P3040 on a 2013-2019 Cadillac XTS?
Common causes of P3040 include: Aggressive driving in stop-and-go traffic, Clutch A wear beyond limit, Insufficient clutch cooling, TCM clutch adaptation out of range, Towing beyond vehicle rating.