2006 Cadillac STS
US · Midsize Cars
The 2006 Cadillac STS is listed in the US market with gasoline power. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.
- Engine
- Varies by configuration: 3.6L 6-cylinder, 4.6L 8-cylinder
- Power
- Not available
- Torque
- Not available
- Transmission
- 5-speed automatic
- Drivetrain
- Varies by configuration: RWD, AWD
- Fuel
- Gasoline
- Seating
- Not available
Key Performance & Dimensions
Engine
| Specification | Value | Source |
|---|---|---|
| Engine | Varies by configuration: 3.6L 6-cylinder, 4.6L 8-cylinder | |
| Displacement | 3.6 L to 4.6 L | |
| Cylinders | 6 to 8 | |
| Fuel type | Gasoline | EPA fueleconomy.gov |
Not available from our sources: Aspiration, Power, Torque.
Transmission and drivetrain
| Specification | Value | Source |
|---|---|---|
| Transmission | Automatic | EPA fueleconomy.gov |
| Gears | 5 | |
| Drivetrain | Varies by configuration: RWD, AWD |
Fuel economy and range
| Specification | Value | Source |
|---|---|---|
| Combined | 19 mpg (12.4 L/100 km) to 17 mpg (13.8 L/100 km) | EPA fueleconomy.gov |
| City | 16 mpg (14.7 L/100 km) to 14 mpg (16.8 L/100 km) | |
| Highway | 25 mpg (9.4 L/100 km) to 21 mpg (11.2 L/100 km) |
Not available from our sources: Electric range, Battery capacity.
Trims and configurations
4 configurations listed by our sources. Engines, drivetrains and fuel economy can differ between them.
Recalls
NHTSA lists 4 recall campaigns for this model year. Last checked October 17, 2026.
14V542000: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
General Motors LLC (GM) is recalling certain model year 2004-2007 Cadillac CTS-V vehicles manufactured October 6, 2003, to March 15, 2007, and 2006-2007 Cadillac STS-V vehicles manufactured June 23, 2005, to March 15, 2007. In the affected vehicles, the electrical terminals of the fuel pump module may overheat resulting in the melting of the flange material.
Remedy: GM will notify owners, and dealers will replace the fuel module and fuel tank jumper harness, free of charge. GM sent out interim notices in late October. The recall began on March 12, 2015. Owners may contact Cadillac customer service…
Reported September 9, 2014. View on NHTSA
07V589000: POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT:SEAL
ON CERTAIN PASSENGER VEHICLES, THE REAR AXLE PINION SEAL DOES NOT MEET ALL OF THE SPECIFICATIONS AND MAY EXPERIENCE A FLUID LEAK.
Remedy: DEALERS WILL REPLACE THE PINION SEAL FREE OF CHARGE. THE RECALL BEGAN ON FEBRUARY 1, 2008. OWNERS MAY CONTACT CADILLAC AT 1-800-458-8006 OR HTTP://WWW.CADILLAC.COM; PONTIAC AT 1-800-620-7668 OR HTTP://WWW.PONTIAC.COM; AND SATURN AT…
Reported December 20, 2007. View on NHTSA
06V020000: FUEL SYSTEM, GASOLINE:DELIVERY
CERTAIN VEHICLES EQUIPPED WITH V6 ENGINES MAY HAVE A CONDITION WHERE FUEL IS NO LONGER SUPPLIED TO THE ENGINE. THIS CONDITION OCCURS WITHOUT THE ILLUMINATION OF THE FUEL LEVEL LOW INDICATOR LIGHT OR THE WARNING CHIME.
Remedy: DEALERS WILL REPROGRAM THE ELECTRONIC CONTROL MODULE (ECM) WITH NEW SOFTWARE FREE OF CHARGE. OWNERS WERE NOTIFIED IN DECEMBER 2005 AND ASKED TO MAINTAIN AT LEAST 1/4 OF A TANK FUEL LEVEL TO AVOID THIS CONDITION UNTIL THE PARTS ARE…
Reported January 25, 2006. View on NHTSA
06V007000: VEHICLE SPEED CONTROL
ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH ALL WHEEL DRIVE AND A 3.6L V6 ENGINE, THE TORQUE MONITORING FUNCTIONS OF THE ELECTRONIC THROTTLE CONTROL (ETC) ARE NOT ENABLED. THESE FUNCTIONS CAN LIMIT ENGINE SPEED AND TORQUE IF UNUSUAL ENGINE CONTROL MODULE (ECM) HARDWARE OR SOFTWARE FAILURES OCCUR.
Remedy: DEALERS WILL REPROGRAM THE ECM ON THESE VEHICLES FREE OF CHARGE. THE RECALL BEGAN ON JANUARY 24, 2006. OWNERS MAY CONTACT CADILLAC AT 1-866-982-2339.
Reported January 13, 2006. View on NHTSA
Data sources
- EPA fueleconomy.gov · retrieved October 16, 2026 · US Government public data
- NHTSA vPIC · retrieved October 16, 2026 · US Government public data
Source checked: October 16, 2026
Data verified: October 17, 2026
Specifications can vary by market, trim, configuration and production date. Confirm with the manufacturer before buying parts or making safety decisions. Report an error.
Related vehicles
- 2005 Cadillac STS
Gasoline
Varies by configuration: 3.6L 6-cylinder, 4.6L 8-cylinder · Varies by configuration: RWD, AWD
18 mpg (13.1 L/100 km) to 17 mpg (13.8 L/100 km) - 2007 Cadillac STS
Gasoline
Varies by configuration: 3.6L 6-cylinder, 4.6L 8-cylinder · Varies by configuration: RWD, AWD
19 mpg (12.4 L/100 km) to 16 mpg (14.7 L/100 km)
Frequently asked questions
What engine does the 2006 Cadillac STS have?
Varies by configuration: 3.6L 6-cylinder, 4.6L 8-cylinder. Engines can differ by trim, so check the trim list below.
What is the fuel economy of the 2006 Cadillac STS?
Combined fuel economy is 19 mpg (12.4 L/100 km) to 17 mpg (13.8 L/100 km), as published by the source shown in the specification table.
Is the 2006 Cadillac STS front-wheel, rear-wheel or all-wheel drive?
Drivetrain: Varies by configuration: RWD, AWD.
Are there recalls for the 2006 Cadillac STS?
NHTSA lists 4 recall campaigns for this model year (last checked October 17, 2026). Details are in the Recalls section.