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Used 2006 Cadillac STS Consumer Reviews

4.5 out of 5 stars
90 reviews
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4.63 out of 5 stars

Cadillac Delivers Excellence, GM does not.

darkmatter, 05/28/2013
2006 Cadillac STS V6 4dr Sedan (3.6L 6cyl 5A)
23 of 27 people found this review helpful

I purchased my 3.6L v6 STS fully loaded for $10,000 after my previous Cadillac, a 2000 Deville DHS, was totaled from hail damage. I needed to get a new car quickly, and I had my first Cadillac for so long with no issues; I wanted to stick to the brand. When I first sat in the vehicle the overwhelming number of "intuitive" features was extremely intimidating. Overtime, they grew on me, and the immense customization became a tool from the vehicle to optimize a perfect driving experience. However, with all the great number of features and beautiful styling of the car I found it was easy to overlook the mechanics. One week after I purchased the vehicle, I noticed a "clicking" noise. Continued:

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4.63 out of 5 stars

Best Car We Ever Drove

stser, 08/11/2014
2006 Cadillac STS V6 4dr Sedan (3.6L 6cyl 5A)
14 of 16 people found this review helpful

Bought new in June 2006 for my wife and two middle school boys. Boys are grown and gone, but car is still excellent. 108,000 miles and counting. Lots of short cold winter starts which can really wear on an engine, but no problems. Used synthetic oil and changed only every 10,000 miles. Ash tray covers (f&b) both broke off, and the bushings in the front suspension have moved out of place so we do get some clunking noises over bumps. Both headlamps burned out within months of each other and were costly to replace because the whole front end had to come off. On third set of tires, otherwise no issues. If looking at used...I would buy my car again. Hope to keep it another 100,000 miles. Good GM!

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4.25 out of 5 stars

Beautiful but Unreliable

John Bantsolas, 10/15/2009
2006 Cadillac STS V8 4dr Sedan (4.6L 8cyl 5A)
13 of 15 people found this review helpful

I've 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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3 out of 5 stars

Not bad but not great

My last GM, 04/27/2019
updated 10/29/2020
2006 Cadillac STS V6 4dr Sedan (3.6L 6cyl 5A)
5 of 5 people found this review helpful

Traded in my 1998 deville for a 2006 STS 3.6 with 86,000 miles. It was flawless for the first year of ownership. Around 96,000 miles I got a misfire and ended up doing the spark plugs. Order the parts online and do it yourself, takes some time but a huge money savor. Didn’t really experience any issues until 140,000 miles then it was all down hill. Transmission became clunky shifting from reverse to drive or when coming to a stop and then accelerating again. LED taillights will fail one bulb at a time but you have to replace the entire assembly. Keyless entry will fail. Interior chrome door handles peeled and will cut you if the wind takes the door out of your hand. Gas mileage for a v6 is poor, I drive both city and highway and generally averaged 19mpg. Horrible in the Michigan snow, I’ve always had Michelin tires and if you are under 5/32 tread they are now useless. Owners Manuel says you’ll burn a quart every 1200 miles. By the end I was burning a quart and a half per tank of gas. Sealed for life transmission is a lie, got the a code reading “transmission fluid deteriorating ”. If your key fob battery is starting to die change the battery right away I waited and was locked out of my car. The Bose stereo sounds great, handling was great, looks a bit sleeker than the CTS. Developed more misfires and oxygen sensors failing in the last 4 months of ownership. Made it to 167,000 miles and traded it in for a Lexus LS430. Basically if your considering this car get the V8 and expect stupid things to go wrong.

Safety
5 out of 5 stars
Technology
4 out of 5 stars
Performance
4 out of 5 stars
Interior
3 out of 5 stars
Comfort
3 out of 5 stars
Reliability
3 out of 5 stars
Value
3 out of 5 stars
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2.75 out of 5 stars

Sorry... I lose!!!

Jac122, 04/03/2006
2006 Cadillac STS V8 4dr Sedan (4.6L 8cyl 5A)
7 of 8 people found this review helpful

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 won't. 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 we'll call it even. If you are considering a '06 STS V6 AWD, beware and test drive extensively first.

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