April 7: GM L87 Engine Problems Cause Class Action Lawsuit news | 1 days ago April 1: Cadillac LYRIQ Recall: Owner's Manual Has Wrong Headrest Information recalls | 7 days ago March 15: GM 10-Speed Transmissions Cause Wheels to Lockup recalls | 24 days ago March 7: GM 8L90 Transmission Lawsuit Survives Motion to Dismiss news | 32 days ago January 18: GM L87 Engine Failures Investigated in Nearly 877,000 Vehicles investigations | 80 days ago
8.0
pretty bad- Typical Repair Cost:
- $2,500
- Average Mileage:
- 86,000 miles
- Total Complaints:
- 1 complaints
Most Common Solutions:
- replace transmission (1 reports)

transmission problem
Helpful websites
- No one has added a helpful site for this 2007 STS problem yet. Be the first!
A D V E R T I S E M E N T S
Lack of available parts from GM led to the entire transmission having to be replaced and modified.
- Todd A., Moorhead, MN, US