Sell your 2006 Cadillac STS for cash

The 2006 Cadillac STS is a midsize car that came with a choice of 3.6L 6-cyl, 4.4L 8-cyl and 4.6L 8-cyl engines. At 20 years old, many are reaching the point where repairs cost more than the car is worth. Running or not, we'll make you an offer and tow it away for free.

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2006 Cadillac STS at a glance

Body styleMidsize Cars
Engines3.6L 6-cyl, 4.4L 8-cyl, 4.6L 8-cyl (supercharged versions available)
TransmissionsAutomatic (S5), Automatic (S6)
DriveRear-Wheel Drive, 4-Wheel or All-Wheel Drive
FuelRegular Gasoline, Premium Gasoline
Fuel economy12–16 city / 19–25 highway / 14–19 combined MPG
EPA annual fuel cost$3,550–$5,850 a year (EPA estimate at current fuel prices, 15,000 miles)
Tailpipe CO₂468–635 grams per mile
Versions tested by EPA5 configurations: STS, STS AWD, STS-V
Age20 years

Specs, fuel cost and emissions from the EPA's fueleconomy.gov data. Your car's exact equipment may differ.

What affects its junk value

  • Age: at 20 years old, most of a 2006 STS's value comes from reusable parts and scrap metal, not resale.
  • Weight: as a midsize car, it weighs less than a truck or SUV, so its value leans more on parts than on scrap weight. See how scrap prices by weight work.
  • Catalytic converter: like all gas and diesel cars, it has a catalytic converter containing precious metals, one of the most valuable parts on a junk car. An offer assumes it's still in place. More on catalytic converters.
  • Recalls: NHTSA lists 4 recalls for the 2006 STS. Open recalls don't stop you from selling or junking it.
  • Known problems: owners reported the most issues with the air bags, typically around 82,000 miles. If that's what failed on yours, it can still be sold as-is.

How junk car offers are calculated

2006 Cadillac STS recalls

NHTSA lists 4 safety recalls covering the 2006 Cadillac STS. Open recalls don't stop you from selling or junking the car, but check your VIN at nhtsa.gov/recalls to see which apply to yours.

Fuel System, GasolineSep 2014 · NHTSA campaign 14V542000

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…

Risk: If the flange melts, a hole may be created allowing the fuel pump to leak fuel, causing the vehicle to stall, increasing the risk of a vehicle crash. Additionally, leaking fuel in the presence of an ignition source increases the risk of a f

Power TrainDec 2007 · NHTSA campaign 07V589000

On certain passenger vehicles, the rear axle pinion seal does not meet all of the specifications and may experience a fluid leak.

Risk: A rear differential failure may cause loss of motive power and possibly loss of control increasing the risk of a crash.

Fuel System, GasolineJan 2006 · NHTSA campaign 06V020000

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.

Risk: If the engine stops running, the operator will not be able to restart the vehicle which could increase the risk of a crash.

Vehicle Speed ControlJan 2006 · NHTSA campaign 06V007000

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.

Risk: Without these functions enabled, a persistent ECM failure could result in a throttle opening greater than commanded by the driver and a crash could occur.

Common 2006 STS problems

Owners have filed 139 complaints about the 2006 Cadillac STS with NHTSA. 16 reports involved a crash and 6 reports involved a fire. Owners reported 20 injuries.

Complaints are reports from owners and aren't verified by NHTSA. One complaint can list several components. Mileage is the median odometer reading owners reported for that component.

Most-reported components

  • Air Bags50
  • Electrical System20
  • Engine20
  • Fuel/Propulsion System18
  • Electronic Stability Control (Esc)8
  • Power Train7

Typical mileage when problems were reported

  • Air Bags82,000 mi
  • Electrical System85,000 mi
  • Engine78,000 mi
  • Fuel/Propulsion System82,000 mi
  • Electronic Stability Control (Esc)78,000 mi
  • Power Train120,000 mi

2006 Cadillac STS service bulletins

Manufacturers have filed 755 technical service bulletins and communications with NHTSA covering the 2006 Cadillac STS. These are repair instructions for known issues, not recalls.

Most common bulletin topics

  • Equipment109
  • Equipment98
  • Electrical System76
  • Engine and Engine Cooling43
  • Equipment Adaptive/Mobility35
  • Equipment35

Recent bulletins

  • Service Bulletin/Repair InstructionsJul 2025 · PIP5601C

    This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.

  • Service Bulletin/Repair InstructionsMay 2025 · PIT5074R

    This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and

  • Service Bulletin/Repair InstructionsMay 2025 · PIT5074R

    This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and

  • Service Bulletin/Repair InstructionsMay 2025 · PIT5074R

    This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and

Source: NHTSA manufacturer communications (technical service bulletins).

NHTSA defect investigations

NHTSA opened 1 defect investigation covering the 2006 Cadillac STS.

Power TrainPE07037 · opened Jul 2007, closed Dec 2007Led to recall 07V589000

Failure of the rear differential

Odi evaluated two different alleged defects involving rear drivetrain components during this preliminary evaluation.gm is conducting a recall to address one of the defect conditions and odi has opened an engineering analysis to continue its investigation of the other alleged defect. On december 19, 2007, gm submitted a

Other Cadillac STS years

‹ Sell a 2005 STS · Sell a 2007 STS › · All Cadillac STS years

Other 2006 Cadillac models

Selling a 2006 STS: questions

How much is a 2006 Cadillac STS worth for junk?

It depends on its condition, whether major parts like the engine, transmission and catalytic converter are still there, and current scrap and parts prices where you live. Its parts make up much of its value. Enter your ZIP code above for a free offer on your specific car.

Can I junk a 2006 STS that doesn't run?

Yes. We buy 2006 STSs that don't start, were in an accident, failed inspection or have a blown engine or transmission. Towing is always free.

Can I sell a 2006 STS with open recalls?

Yes. Open recalls don't prevent a junk sale. NHTSA lists 4 recalls for the 2006 Cadillac STS; you can check whether any are still open on yours with the VIN lookup at nhtsa.gov/recalls.

What paperwork do I need to sell my 2006 STS?

Usually the title and a photo ID. Rules differ by state, including what to do with your plates and whether to file a notice of sale. Check our state-by-state car title guides for the official forms.

Before you sell

Sources

Data retrieved October 2026.

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