Structure Problems of Cadillac STS

Cadillac STS owners have reported 8 structure related problems since 1996. Table 1 shows the 5 most common structure problems. The number one most common problem is related to the vehicle's body (4 problems). The second most common problem is related to the vehicle's underbody shield (1 problem). For details of each of the problem category, use the links in the table.

Table 1. Structure related problems of Cadillac STS

  Recently reported Structure problems of Cadillac STS

The Body problem

Manufacture produced this car filling the inside of the unibody rails with an absorbent foam. These rails also have manufactured holes allowing water to enter the rails. The water is then absorbed in the foam and through age it has cause the unibody rails to rot from the inside out.   Read details...

The Underbody Shield problem

The air dam shield on a 2005 Cadillac Sts keeps falling down and dragging on the pavement. The car was bought in June 2005 and the first incident happened in July 2005. The dealer replaced the shield. The second incident happened in August 2005 and the dealer reattached the shield.   Read details...

The Door problem

Passenger front door will intermittently not open when using exterior door handle. Does not matter if door is unlocked with remote or inside vehicle unlock button.   Read details...

The Frame And Members problem

Failure of the passenger side motor mount bracket. Bracket is a pot metal piece and in my anecdotal research, it has failed with excessive frequency.   Read details...

The Frame Rust problem

2005 cadillas Sts - frame rotting out - car is garage kept. Upon inspection on my lift this weekend, I found substantial rust to both lower frame rails just behind the mounts for engine cradle. Manufacturer fills the frame rails of this area with foam which absorbs and holds water and rots the   Read details...

Switch Make:
Switch Model:
Safety Ratings of STS Cars
Fuel Economy of STS Vehicles
STS Service Bulletins
STS Safety Recalls
STS Defect Investigations