Summary
This service bulletin provides instructions for inspecting and replacing the lower steering column I-shaft on certain Model S and Model X vehicles (2015-2020) that may exhibit stiff steering due to corrosion at the I-shaft U-joint.
Procedure
The procedure involves performing lock-to-lock steering inputs to identify abnormal sensations, and if necessary, replacing the I-shaft and installing removed components.
Refer to the Service Manual for specific procedures for Model S RWD, Model S Dual Motor, and Model X.
Manual:
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