2006 Cadillac CTS: Reliability, Recalls, Known Issues & Cost to Own
Data last updated 2026-07-04 · sources listed throughout · based on public NHTSA data
Among the worst CTS years: coolant-into-transmission, oil-cooler and engine-compression failures with multiple recalls; avoid unless fully documented. 5 known issue patterns are documented below, with frequency and the mileage windows where they typically appear. New, the 2006 Cadillac CTS ranged from $29,990 to $36,290 depending on trim (base MSRP, before options and destination).
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Context from the listing you were viewing, not a market-price judgement.
Among the worst CTS years: coolant-into-transmission, oil-cooler and engine-compression failures with multiple recalls; avoid unless fully documented.
Sources (4)
- rerev.comhttps://rerev.com/articles/cadillac-cts-years-to-avoid/
- motorbiscuit.comhttps://www.motorbiscuit.com/avoid-6-cadillac-cts-model-years-if-you-want-rel…
- repairpal.comhttps://repairpal.com/reliability/cadillac/cts
- api.nhtsa.govhttps://api.nhtsa.gov/complaints/complaintsByVehicle?make=cadillac&model=cts&…
Known issues
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Airbag warning light and occupant or passenger-presence sensor faults are frequently reported and can disable the airbag system.
widespread · 167 NHTSA complaints · electrical
-
3.6L V6 engine problems including timing-chain failure, internal oil-cooler failure and coolant leaking into the transmission.
commonly reported · 30 NHTSA complaints · typically 70k–120k miles · engine
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Driveline and rear-axle pinion-seal leaks with clunking, plus automatic-transmission and powertrain complaints on early cars.
occasional · 55 NHTSA complaints · transmission
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Premature brake-rotor warping and accelerated brake wear are common.
commonly reported · 50 NHTSA complaints · brake
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Steering-wheel position sensor failure triggers traction- and stability-control warning lights.
occasional · steering
Based on public NHTSA complaint data and AI synthesis: patterns, not guarantees.
Sources (5)
- api.nhtsa.govhttps://api.nhtsa.gov/complaints/complaintsByVehicle?make=cadillac&model=cts&…
- api.nhtsa.govhttps://api.nhtsa.gov/complaints/complaintsByVehicle?make=cadillac&model=cts&…
- api.nhtsa.govhttps://api.nhtsa.gov/complaints/complaintsByVehicle?make=cadillac&model=cts&…
- rerev.comhttps://rerev.com/articles/cadillac-cts-years-to-avoid/
- motorbiscuit.comhttps://www.motorbiscuit.com/avoid-6-cadillac-cts-model-years-if-you-want-rel…
Recalls & safety
Recall history hasn't been loaded for this model year yet.
Whether a recall is still open on a specific car depends on its VIN. Check it free at NHTSA's VIN lookup (nhtsa.gov/recalls), or ask the seller for proof the repair was done.
Pros & cons
Pros
- Sharp rear-wheel-drive handling and bold styling that relaunched Cadillac as a sport-sedan brand.
- Strong 3.6 V6 with an available 6-speed manual, plus a high-performance CTS-V.
- Affordable used entry into a luxury sport sedan.
Cons
- Cheaper interior plastics than European rivals and a firm ride.
- Engine problems including timing-chain, oil-cooler and coolant-into-transmission failures.
- Airbag-warning-light and occupant-sensor faults plus premature brake wear.
- Below-average long-term reliability with a typical lifespan around 150,000 miles.
Trims & original pricing
| Trim | Original base MSRP | New today | Engine | MPG |
|---|---|---|---|---|
| 2.8 | $29,990 | discontinued | — | — |
| 3.6 | $32,690 | discontinued | — | — |
| Sport | $36,290 | discontinued | — | — |
Prices are base MSRP for each trim's standard configuration. Options, packages, and destination charges added to what original buyers actually paid.
Sources (1)
- iseecars.comhttps://www.iseecars.com/car/2006-cadillac-cts-price
Cost to own
| Repairs (rises with mileage) | ≈ $650–700/yr |
| Expected lifespan | ~150k miles |
National-average estimates based on public data. Your costs vary by region, driver, and condition.
Sources (1)
- repairpal.comhttps://repairpal.com/reliability/cadillac/cts
Frequently asked questions
What problems does the 2006 Cadillac CTS have?
Documented issue patterns include: Airbag warning light and occupant or passenger-presence sensor faults are frequently reported and can disable the airbag system; 3.6L V6 engine problems including timing-chain failure, internal oil-cooler failure and coolant leaking into the transmission; Driveline and rear-axle pinion-seal leaks with clunking, plus automatic-transmission and powertrain complaints on early cars; Premature brake-rotor warping and accelerated brake wear are common. Frequency is based on public NHTSA complaint data: patterns, not guarantees.
Is the 2006 Cadillac CTS reliable?
Among the worst CTS years: coolant-into-transmission, oil-cooler and engine-compression failures with multiple recalls; avoid unless fully documented.
How much did the 2006 Cadillac CTS cost new?
Between $29,990 and $36,290 depending on trim. Those are base MSRPs for each trim's standard configuration; options, packages, and destination charges added to what original buyers actually paid.
Is the Cadillac CTS expensive to maintain?
Estimated repairs run roughly $650–700/year as mileage climbs.
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Estimates are based on public data: patterns, not guarantees. CarVitals is not affiliated with NHTSA, CarMax, AutoTrader, or Cars.com. Issue frequencies come from public NHTSA complaint data, which has no denominator, so they describe reporting patterns, not failure probabilities. Always have a used car inspected before buying. How we build these reports.