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Engine coolingPart report

2008 Cadillac CTS Engine cooling Problems

Complaints
7about this part
Share
4%of 175 total for the year
Median mileage
8,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 7 complaints about the engine cooling of the 2008 Cadillac CTS, 4% of the 175 complaints for this model year. Where a mileage was given, the median is 8,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“My 2008 Cadillac CTS v6 di awd has a dangerous acceleration lag when you step on the gas to pass or get out of the way of a hazard in road. There is about a 1-2 sec lag between stepping on pedal and rpms moving, and about another second or so before any pick up happens. Doesn't sound like much, but no other car I have had, did this. At the speed of oncoming vehicles, a 1-2 second lag can mean a 30 - 60 yards of distance being traveled by an oncoming car or truck. That sight fills up rear view mirror fast. In my opinion, this is a serious design flaw and potentially death causing defect. …”

NHTSA complaint #10234780, filed 2008-07, 5,000 miles

“Engine service light came on - dealer diagnosed problem was caused by a stretched / loose timing chain. Dealer reported 1,000s of 2008 Cadillac ctss with the 3.6l dy engine experienced the same problem. Nhtsa should invest problem since how the timing chain fails could cause a serious accident.”

NHTSA complaint #10308784, filed 2010-02, 7,000 miles

“Shortly after the purchase of the vehicle it started shutting off while in motion. This happens unexpectedly, and mostly when slowing down for a stop light or to reduce speed. This is an on going issue, which have been reported to general motors, who informed us to take it a number of dealerships on several occasions, but all services performed has proven futile. My family has had many close death experiences because of this problem, but general motors refuses to address the matter in depth. …”

NHTSA complaint #10596212, filed 2014-06, 32,000 miles

“Check engine light appeared on my 2008 Cadillac CTS. Vehicle brought to dealership. Issue appears to be a cylinder head and cam failure. Still not repaired. Vehicle still in shop since 2/26,vehicle has 2600 miles on it. 4months old.”

NHTSA complaint #10220331, filed 2008-03, 2,645 miles

“1. Car stalls/hesitates on right turn. Dealer service could not replicate. Problem started at ownership, and continues at 25k miles. Problem not corrected. 2. Check engine light: car vibrates/shakes standing at idle. 21 days out of service. 3 dealers; four visits. One dealer could not extinguish check engine light. Dealer disassembled engine and made repairs. (exhaust is noticeably louder (not repaired) and the fm radio will not work when the rear defroster is switched on--I suspect a ground wire was broken during the repair (not repaired).”

NHTSA complaint #10339794, filed 2010-06, 9,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
2019110%
201512%
201411%
201122%
201023%
200911%
200874%
200784%
200693%
2005145%
2004125%
20033812%

Other parts of the 2008 Cadillac CTS

Electrical system
39 complaints
Fuel system
28 complaints
Brakes
22 complaints
Engine
22 complaints
Transmission and drivetrain
21 complaints
Other or unknown
18 complaints
Body and structure
14 complaints
Vehicle speed control
14 complaints
Steering
13 complaints
Air bags
12 complaints
Electronic stability control
7 complaints
Exterior lighting
6 complaints

← All problems reported for the 2008 Cadillac CTS

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology