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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  Love My Caddy - 2006 Cadillac STS
  By Jordan - September 3 - 8:22 pm

  I purchased this car certified used with 34,000 on it. So far I love the Caddy. I traded in my 2002 Lexus GS300 due to a series of electrical issues. I wanted to buy luxury and AMERICAN so I went with the STS V6. This car is a weekend driver for me as I have a company car. So far I have had it in for warranty service 3 times. The window switch in the back seat went out (roll down but not up), the ashtray trim piece broke, and the selector switch for the power mirrors broke. All under warranty. The technology in this car rivals my Dads E350 and will out perform the Mercedes all day. It is American and has some squeaks now and then but overall a dream to drive and turns heads. Love this car

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  The Good Outweighs the Bad - 2006 Cadillac STS
  By KSMYSTS - August 22 - 11:53 pm

  This is my 3rd Cadillac, and my second STS. The new design definitely tops my former Seville STS. It is a very fun car to drive, and has lots of power at any speed, without using Sport/Manual mode. Sure there are things I would change and things that arent fantastic (like any car), but the good makes those easy to overlook. The styling with traditional Cadillac cues is a win for me, and I love all the bells and whistles - after all, this is a Cadillac. I feel great driving it, a very responsive car - it is difficult to find performance and luxury in the same package, but this is an example of it.

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  Not Bad for a used CAR - 2006 Cadillac STS
  By Romiee - July 9 - 1:34 pm

  Bought the caddie STS 06 v8 with 50,000k. IT was out of warranty though but that didnt bother me. Its a great car and very stylish. I had the CTS 07 2.8l prior and traded that in for a little more luxury. Only paid additional 3,000 for difference. Again great car and very happy. Had small minors repairs like mass air flow sensor replaced and rear brake pads. I do a lot of driving and have already put almost 10,000 miles in 8 months. This car can go on for a very long time. Just maintain the oil changes every 5,000 or 6,000 miles using synthetic motor oil for the STS v8. Highly Recommend putting Super or premium gasoline in this car for better engine protection and performance. :)

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  Nice Care - 2006 Cadillac STS
  By Ike - May 19 - 9:24 pm

  After two year - Im happy. Sorry to report that I had to have brakes and rotors replaced @ 43K. Bought with 16k - so no reason to replace the brakes - tires a still good for another 20k. Rides nice, all the bells and whistles are cool. Overall not bad except for the brakes. Recommend to someone looking for a nice car, great features, and class. Drove 1100 miles in two day and felt great getting out of the car. Ave 28 mpg - very good for an AWD, 6 cyl. I do get a lot of road noise when driving on concrete. Other then that - nice.

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  Glad I bought it used - 2006 Cadillac STS
  By Va rider - October 30 - 2:29 pm

  have read many reviews. I agree: a little firmer than my 2001 SLS. Not used to bumpier ride. Mileage is 13 in town and 19 on the road with hi test and Cad recommended fuel (Texaco). I test drove an 80,000 mile BMW 750i before and much nicer and same price. Retails for $101K now but an STS V-8 is easily $68K. Next time or next car: AWD

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  Beautiful but Unreliable - 2006 Cadillac STS
  By John Bantsolas - October 15 - 7:50 am

  Ive owned the car 6 months (bought it used with 30,000 miles - now have 36,000 miles on it) drives beautifully but have had 3 major repairs (fortunately still under warranty): engine oil lead (had to disassemble and replace gasket), a/c (needed new compressor), and most recently, coolant leak (needed new water pump). These are repairs I would not expect before 100,000 miles.

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  Dont Buy This Car - At least the 2006 - 2006 Cadillac STS
  By I Bought What??? - April 1 - 8:23 am

  I purchased a Certified 2006 STS w/ 20,000 miles in July 2008. Excellent condition. I traded my Toyota Solara with no regrets until ... the moaning sounds started. Forget driving this car on long interstate trips involving mountains. This is the most annoying noise ever. Ive had it to the dealer 6 times for repair without any luck. They claim to "reprogram" whatever it is they "reprogram," but it never repairs the problem. I didnt think a car like this with over a $55,000 price tag new would have so many problems. I cannot speak for the V6, but the V8 is not up to par with even the 3.0 V6 in my former vehicle the Solara. Im ready for another Toyota! Tell me again why GM is in a mess?

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  Cadillac is Back - 2006 Cadillac STS
  By Richard - January 4 - 12:10 pm

  After two decades of owning Mercedes, BMW, and Infiniti, I decided to test the Cadillac STS. I selected the STS over the Mercedes E350 and Infiniti M35. Its ride is firm but smooth. The electronic features are fantastic. Remote start with heated seats and steering wheel make cold mornings easier. The 15 speaker Bose stereo with XM radio is FANTASTIC. I get about 20 MPG on my commute and on a recent road trip I averaged 23 MPG at 80 MPH.

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  2006 STS Bad Brakes? - 2006 Cadillac STS
  By Garry - December 19 - 10:41 pm

  For 20 months and 18,000 miles I have considered my 2006 STS the best car Ive owned. It is truly great road car, and just plain fun to own. Today I went in for regular maintenance, my dealer informed me that the car required new front pads and rotors, $900! He went as far as to say all CTS and STS have "soft" brakes and I can expect to repeat todays expense every 18,000 to 20,000 miles. My disappointment is profound.

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  My Thoughts - 2006 Cadillac STS
  By Brian - October 21 - 9:09 am

  First two weeks with the STS have been great. I have come from driving imports for many years and felt like I was taking a chance. So far, only time will tell, I love the car. Feature for feature and in the price dependent the luxury imports cant compare. I have the V6 AWD and look forward to the winter snow. This car is super quiet and so far rock solid. It is almost freakish how many features that have been packed into the car and the first time that I have actually had to read an owners manual more than once to get a handle on all of the technology features and how to use everything.