Model year guide

2006 Cadillac STS

Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2006 Cadillac STS is worth — from official NHTSA and EPA data. 83 on record.

2006 Cadillac STS — representative photo
Representative photo · via Wikimedia Commons

2006 Cadillac STS at a glance

Safety recalls4
Owner complaints141
Combined19 mpg
Typical price$5,045

Free: specs, open recalls for that exact car, build sheet and fair price.

2006 Cadillac STS recalls 4

Fuel System, Gasoline:delivery:fuel Pump NHTSA Campaign #14V542000 · 09/09/2014

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.

Fix: 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 at 1-800-458-8006. GM's number for this recall is 14405.

Vehicle Speed Control NHTSA Campaign #06V007000 · 13/01/2006

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.

Fix: 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.

Power Train:axle Assembly:axle Shaft:seal NHTSA Campaign #07V589000 · 20/12/2007

ON CERTAIN PASSENGER VEHICLES, THE REAR AXLE PINION SEAL DOES NOT MEET ALL OF THE SPECIFICATIONS AND MAY EXPERIENCE A FLUID LEAK.

Fix: 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 1-800-972-8876 OR HTTP://WWW.SATURN.COM.

Fuel System, Gasoline:delivery NHTSA Campaign #06V020000 · 25/01/2006

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.

Fix: 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 AVAILABLE. THE PARTS ARE NOW AVAILABLE, OWNER RENOTIFICATION BEGAN…

Source: U.S. NHTSA. A recall applies to a model year, but only a VIN check shows whether a specific car has had the repair done.

2006 Cadillac STS common problems

The most-reported problem areas from 141 owner complaints filed with NHTSA — and what to check before you buy.

Air Bags
Confirm the airbag light turns on then off at startup — if it stays lit there's a fault (costly, and a safety risk). Check for signs of prior deployment.
Fuel/propulsion System
Check for fuel or battery warnings, hard starts and stalling. On a hybrid/EV, confirm charging and range behave normally.
Steering
Steering should be tight and centered — no play, clunks or wandering. Test at low and highway speed; listen for power-steering whine.
Electrical System
Test every electrical feature: windows, locks, infotainment, charging and all lights. Watch for flickering, dead accessories or warning lights.
Engine
Listen for knocks or ticking, check for leaks and blue/white exhaust smoke, and make sure it doesn't overheat. No check-engine light should be on.
Fuel System
Sniff for fuel odor, check for leaks, hard starts or stalling, and confirm the fuel gauge reads correctly.

2006 Cadillac STS MPG & running costs

Combined19 mpg
City16 mpg
Highway25 mpg
Est. annual fuel cost$3,725

Source: U.S. EPA / DOE fueleconomy.gov, averaged across trims.

What's a 2006 Cadillac STS worth?

Low
$2,500
Typical price
$5,045
High
$7,700

From 82 comparable 2006 Cadillac STS listings.

Estimated 5-year cost to own

A rough guide to what running a 2006 Cadillac STS costs over five years and 75,000 miles.

Fuel (5 yrs)$18,625
Fuel only$18,625
Per mile$0.25

How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.

2006 Cadillac STS trims & engines on record

Trims
V6 · v8
Engines
3.6L 6-cyl · 4.6L 8-cyl

2006 Cadillac STS vehicles on record

2006 Cadillac STS 2006 Cadillac STS V61G6DW677660138658 2006 Cadillac STS 2006 Cadillac STS v81G6DC67A360220660 2006 Cadillac STS 2006 Cadillac STS V61G6DW677160198217 2006 Cadillac STS 2006 Cadillac STS V61G6DW677160216652 2006 Cadillac STS 2006 Cadillac STS V61G6DW677460104069 2006 Cadillac STS 2006 Cadillac STS V61G6DW677760110223 2006 Cadillac STS 2006 Cadillac STS v81G6DC67A560216187 2006 Cadillac STS 2006 Cadillac STS V61G6DW677560100936 2006 Cadillac STS 2006 Cadillac STS V61G6DW677360182357 2006 Cadillac STS 2006 Cadillac STS V61G6DW677760170616 2006 Cadillac STS 2006 Cadillac STS V61G6DW677X60172876 2006 Cadillac STS 2006 Cadillac STS V61G6DW677260182771 2006 Cadillac STS 2006 Cadillac STS v81G6DC67A760121579 2006 Cadillac STS 2006 Cadillac STS V61G6DW677260212299 2006 Cadillac STS 2006 Cadillac STS V61G6DW677460103519 2006 Cadillac STS 2006 Cadillac STS v81G6DC67A760121145 2006 Cadillac STS 2006 Cadillac STS V61G6DW677060110273 2006 Cadillac STS 2006 Cadillac STS V61G6DW677660194874 2006 Cadillac STS v81G6DC67AX60193974 2006 Cadillac STS 2006 Cadillac STS V61G6DW677260221116 2006 Cadillac STS 2006 Cadillac STS V61G6DW677860217314 2006 Cadillac STS 2006 Cadillac STS V61G6DW677360206141 2006 Cadillac STS 2006 Cadillac STS V61G6DW677860218611 2006 Cadillac STS 2006 Cadillac STS v81G6DC67A360110241

Other Cadillac STS model years

2011 2010 2009 2008 2007 2005

2006 Cadillac STS — frequently asked questions

Does the 2006 Cadillac STS have any safety recalls?

Yes — NHTSA lists 4 safety recalls for the 2006 Cadillac STS. Recall repairs are free at any franchised dealer. Whether a specific car still has one open depends on its VIN.

What are the most common problems with the 2006 Cadillac STS?

Based on 141 owner complaints filed with NHTSA, the most-reported problem areas are air bags, fuel/propulsion system, steering.

What gas mileage does the 2006 Cadillac STS get?

The U.S. EPA rates the 2006 Cadillac STS at about 19 mpg combined (16 city / 25 highway).

How much is a 2006 Cadillac STS worth?

Comparable 2006 Cadillac STS listings run roughly $2,500–$7,700, typically around $5,045 (from 82 vehicles).

Sources: NHTSA (recalls, complaints, crash tests), U.S. EPA (fuel economy). Vehicle data only — CarLogs never shows owner information.