Overview & Reviews

Not much changes on the 2006 Cadillac STS. Items of note include the availability of all-wheel drive on V6-equipped cars, a standard Bose audio and navigation system as part of the V8 luxury package, and optional 18-inch wheels.

• Full-size car at a midsize price, nimble road feel, powerful engine options, available all-wheel drive, optional Bose stereo is one of the best in its class.

• Sporty bucket seats might be a bit firm for some, plastic interior panels not quite up to German standards, only one transmission available.

User Reviews:

Showing 1 through 10 of 80.00

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  Nice Car with a few defects - 2006 Cadillac STS
  By Allen Lobb - August 25 - 3:44 pm

  Purchase the car used with 38,000 miles. Engine consumes a quart of oil about every 3000 miles. Using the oil recommended by Cadillac which is Mobil One-5w30. No signs of oil leaks, no smoke out of the exhaust pipe. Cadillac drive OK if you dont mind the popping sound in the driver seat when turning corners. Also, sometime the lights in the dash below the speedo/tach go out. Our third Calillac, the last two had electrical problems. After 8 years with Cadillac, this will be our last one.

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  Engine Trouble After 3 years - 2006 Cadillac STS
  By Martin - August 19 - 12:04 am

  I bought my 06 STS after owning a volvo for 14 years. Never had to replace the motor or transmission. I thought I was going to own this car for a number of years without major problems. Wrong! In the shop now with engine problem. The price keeps going up just to identify whats wrong. Paid too much money to have problems so soon. I am now wondering if I made a mistake in purchasing this car. I thought this would be the car that would take me into retirement. Its a good looking car, but it has its down falls such as useless glove compartment, limited storage space in doors, small truck for a med size nice looking car, noisy, and limited room in the back seats.

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  not for winter driving - 2006 Cadillac STS
  By sts - May 10 - 11:38 am

  Lousy car in winter. Car should not be sold without four wheel drive in this area. GM messed up on this. Also my 8 cylinder Cadillac got better mileage than the 6.

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  The Cadillac - 2006 Cadillac STS
  By roger - April 25 - 3:10 pm

  Dealership did not know about the slap stick shifter. I worked in Chicago for 4 months commuting and the car got great mileage. I live 90 miles from Chicago. The mileage in the city was terrible. I was getting 14.0 to 15.3! I thought I was getting a wood grain steering wheel. I guess it was not in the 1sb package. V6 never again. The transmission stays in the current gear when you stomp the gas. GM blew that. Turning radius is not tight enough. That button you hold for 7 second is OK but the transmisson is better when you dont use the computers.

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  Fails to Meet Expecations - 2006 Cadillac STS
  By Former Caddy Man - March 17 - 11:33 pm

  This car has lots of promise, but fails to deliver. The quality of the car itself as well as the dealer service has been very poor in my experience. I have experienced a number of breakdowns requiring tows. It has had repeated problems and the dealer has not been able to resolve them. This should not occur with a car like this. The transmission is rough and uncertain at low speeds and the electronics either dont work as billed or dont work as designed.

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  Sorry... I lose!!! - 2006 Cadillac STS
  By Jac122 - April 2 - 7:32 pm

  This is my second Caddy. I owned a 2003 Seville SLS, what a perfect car. I looked forward to all the "goodies" in the 2006 model....WHAT A MISTAKE! The car is so sluggish it remains in 5th gear most of the time. Press the accelerator and HOPE, then pray it responds usually wont. Bluetooth has no teeth. Frequently does not recognize phone, and does not work while driving. The voice recognition does not recognize ANYONE! Its gas mileage is only about 15 mpg. GM knows of the sluggishness and says "it’s up to specs" “Your loss buddy.” Just give me my 2003 SLS and well call it even. If you are considering a 06 STS V6 AWD, beware and test drive extensively first.

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  The greatest disappointment of Cadillac - 2006 Cadillac STS
  By lcacsllc - December 20 - 6:34 pm

  I have been driving Cadillacs for the past 16 years. I have had DeVilles and SLSs. Always I could rely on Cadillac to provide superior ride and service. My 2006 STS V6 was a huge disappointment. We have 8,000 miles on the car and have felt every crack in the road from here to Florida and back. We cancelled a Christmas driving trip and chose to fly. The ride is intolerable. Never before have we had to test drive the car before ordering. We find that the only smooth ride offered by Cadillac is the DTS. We like the sporty styling but its a tin-lizzy dressed in sports attire. Second, the glove box is not sufficient to even house the cars instruction manual. What a useless piece of space.

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  2005 STS - 2006 Cadillac STS
  By mstewart - November 21 - 4:10 pm

  I have had nothing but trouble with my 2006 Cadillac STS V8 since I took delivery of it. First, the delivery was delayed at the dealership because the entire radio had to be replaced. After the first 1,000 miles, a loud noise like crunching tin cans developed in the front-end. The dealership has attempted to fix it several times without success. I have been waiting on another part for over a week which they hope will remedy the problem. Meanwhile a coil in the engine went out causing it to operate on less than all 8 cylinders. I have communicated with Cadillac customer relations but have gotten absolutly no relief. Buyers beware.

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  Fun, but not up to the Quality of Lexus - 2006 Cadillac STS
  By tom fuller - November 12 - 11:04 am

  My wife and I each have a 2006 Cadillac STS V6 because I feel strongly that I prefer to buy an American car. Unfortunately, my car has been into the shop four times to have trim pieces put back on, and there is a distracting amount of wind noise which cannot be resolved and apparently is just the way the car is. My wifes previous car, a Lexus, was whisper quiet, so were not used to this. If GM wants owners of BMW and Lexus to go to Cadillac, they will have to do some major work on the entire way they build cars and treat their customers. I also own a BMW Z4, and having had this plus the Lexus, going down to a Cadillac has been a shock. So Im not saying I wont get another one, but the jurys still out.