Excessive Slippage and Clutch Chatter

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Condition	Action
Incorrect speed sensor readings	See speed sensor DTCs.
Incorrect fluid level	Correct the fluid level. Refer to Transmission Fluid Level and Condition Check .
Main pressure low	Repair the transmission.
TCC clutch not applied	Inspect the torque converter clutch system wiring, pressure, and controls. Repair as necessary.
Ranges 1, 2, 3, 4 Only
1-2-3-4 clutch slipping, leaks at rotating clutch seals, leaks at piston seals, 1-2-3-4 clutch plates worn	Inspect the 1-2-3-4 clutch plates, and piston and rotating seals. Replace/rebuild as necessary.
Ranges 4, 5, 6 Only
4-5-6 clutch slipping, leaks at rotating clutch seals, leaks at piston seals, 4-5-6 clutch plates worn	Inspect the 4-5-6 clutch plates, and piston and rotating seals. Replace/rebuild as necessary.
Ranges 3, 5, R Only
3rd, 5th and Reverse clutch slipping, leaks at piston seals, 3rd, 5th and Reverse clutch plates worn	Inspect the 3rd, 5th and Reverse clutch plates and piston seals. Replace/rebuild as necessary.
Range 2, 6 Only
2-6 clutch slipping, leaks at piston seals, 2nd clutch plates worn	Inspect the 2-6 clutch plates and piston seals. Replace/rebuild as necessary.
Ranges 1, R Only
Low and Reverse clutch slipping, leaks at piston seals, Low and Reverse clutch plates worn	Inspect the Low and Reverse clutch plates and piston seals. Replace/rebuild as necessary.