P2757: How to Diagnose & Fix — Torque Converter Clutch Pressure Control Solenoid Control Circuit Performance/Stuck Off

The 2005-2012 Avalon with the U660E 6-speed automatic transmission develops a shudder or vibration during light acceleration, particularly in the 30-50 mph range at low engine RPMs. The shudder feels like driving over a textured road surface and is caused by the torque converter lockup clutch slipping. The issue is more pronounced when the transmission is warm and during gentle throttle application. Some owners describe it as a "rumble strip" feeling. The transmission fluid condition significantly affects the severity of the shudder.

Second-generation Ridgelines with the 6-speed automatic (2017-2019, and the same 6AT family used in the Pilot and Odyssey) develop a shudder or judder that feels like driving over rumble strips during light-throttle cruise, typically 20-60 MPH when the torque converter clutch is slipping in its controlled-lockup mode. Honda's own TSBs 17-025 and 17-026 attribute it to ATF that degrades faster than expected because of intermittent high heat loads on the converter clutch. Owners report the judder returning after the first software-only attempt, which is why Honda issued the second bulletin covering vehicles that still judder after the update.

Second-generation Tundras with the AB60E/AB60F 6-speed automatic commonly develop a torque-converter clutch (TCC) shudder felt as a vibration or 'rumble strip' sensation during light-to-moderate acceleration, typically between roughly 20-45 mph as the converter clutch tries to lock up. Toyota acknowledged the condition in TSB TC018-07 for 2007-2008 trucks. The root cause is wear in the valve body TCC relay/TCC control valves and a worn torque-converter clutch, often aggravated by using fluid other than Toyota WS or by long fluid-change intervals. Left unaddressed, the slipping clutch contaminates the fluid and can damage the rest of the transmission. Common stored codes are P0741 (TCC stuck off) and P2757 (TCC pressure control).

The second-generation Tiguan replaced the DSG with an Aisin AWF8F35 8-speed torque-converter automatic. Owners report a pronounced hesitation of a second or more when pulling away from a stop or when rolling into the throttle at low speed, followed by an abrupt lurch, plus a shudder or vibration felt in the 1,200-1,800 RPM lock-up range that feels like driving over rumble strips. The behavior comes from aggressive lock-up and fuel-economy-biased shift calibration combined with torque converter clutch shudder as the fluid degrades. The issue drew a US class action covering 2018-2020 Tiguans and VW addressed part of it through ECM/TCM software updates and a torque converter shudder service action.

Owners report a shudder or vibration that feels like driving over rumble strips, typically in 3rd through 6th gear at light throttle or on gentle inclines - exactly when the transmission control module tries to hold the torque converter clutch in partial (EMCC) lockup. FORScan logging shows the TCM commanding roughly 20 RPM of converter slip while actual slip wanders randomly between 0 and 200 RPM, which is the signature of a glazing converter clutch lining or a TCC/pressure control solenoid that has been contaminated by clutch material and metal debris. Because the shudder mimics an engine misfire, many owners chase spark plugs, coils and motor mounts first. Left alone, the debris circulates through the valve body and takes out other solenoids and eventually the transmission.