annasturm1

Lexus RC Transmission Torque Converter Fault

I'm having trouble with my 2020 Lexus RC gasoline. At 181830 kilometers, I think the automatic transmission torque converter lock-up clutch is defective. The check engine light and transmission indicator are on. The gearbox slips and shifts uncleanly, with grinding noises during gear changes. Plus, there's an error stored. Has anyone else had a similar converter fault?

A 2020 Lexus RC is experiencing issues with the automatic transmission torque converter lock-up clutch, indicated by a check engine light, transmission indicator, slipping, unclean shifts, and grinding noises. The problem is suspected to be a defective torque converter, supported by an error code related to the torque converter clutch circuit. The suggested solution is to consult a mechanic for a professional assessment and potential repair, as the issue is unlikely to resolve on its own.

Did this summary help you solve your problem?

4 comment(s)

That sounds frustrating, and familiar. I had a similar experience with my previous vehicle, a 2016 Volvo XC60. The symptoms you describe – the slipping, grinding, and those lights – were almost identical. I was chasing ghosts trying to troubleshoot it solo. Did you check the transmission fluid level and condition? What error codes are you pulling?

I did check the transmission fluid, and it seems normal. I'm getting a code indicating a fault with the torque converter clutch circuit. Did the Volvo have the same error code, converter failure? What issues did you experience?

Indeed, the error code was related to the torque converter. Given your symptoms and the error code, it does sound like the automatic transmission converter is the most likely culprit. In my Volvo's case, it progressively worsened. Ultimately, I had to take it to a workshop. I would advise you to do the same; it is unlikely to resolve itself.

I appreciate you sharing your similar experience. It solidifies my suspicion of an automatic gearbox clutch problem. I will schedule an appointment with a trusted mechanic to assess the converter fault. Thanks again for your help!

rmh_community_comment_box_header

Want to read your vehicle data yourself?

Order the Carly Scanner and always keep an eye on all important information about your vehicle.

Carly Universal Scanner

starting from

Not your vehicle?

Find maintenance and repair costs for your vehicle.

Carly repair costs

How much will my repair cost?

community_crosslink_rmh_brand

LEXUS

community_crosslink_rmh_model