Air conditioner froze up and had to be replaced. Had less than 50,000 miles. *tr
2006 Cadillac SRX engine problems
moderate 12 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Failure mileage
Complaints
12
Recalls
0
Avg fix
$3,100
When does it fail?
Of the 12 engine complaints filed for the 2006 Cadillac SRX, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA engine complaint has been filed on this vehicle in over 11 years — the issue may be aging out of the active population.
The failure pattern owners describe
Buyer takeaway: The 2006 Cadillac SRX has a well-documented timing chain defect affecting multiple model years; GM issued a TSB and extended warranty for 2007–2009 models but excluded 2006 owners, leaving them without coverage. Oil sending unit failures recur despite multiple replacements, and some owners report engine power loss and excessive oil leakage at relatively low mileages.
The 2006 Cadillac SRX engine cluster is dominated by premature timing chain failure. Owners across the mileage range from 35,000 to 100,000 miles report check engine lights, no-starts, hard startups, and loud engine noise. Diagnostic codes P0008 and P0017 come up repeatedly. One owner found that 2004–2006 models suffer oil starvation to the chains due to an undersized oil hole; another suspects crankshaft rubbing. Repair costs run $1,300 to $3,500. GM issued TSB #3423 (September 2008) and extended warranty coverage to 120,000 miles—but only for 2007–2009 SRX; the 2006 was excluded. Owners report GM cycling through three different timing chain designs and denying coverage on out-of-warranty vehicles despite knowing the issue existed.
Oil sending unit failures appear just as stubborn: one owner replaced the unit five times, another four times, yet the leak persisted. Excessive oil loss triggers misfires and power loss. One complaint describes a sudden speed reduction from 65 mph to 20 mph during acceleration, though the dealer could not reproduce it. Engine running after shutdown and unusual noises were also reported. Overall, owners allege GM knew about the defect but refused meaningful remediation on 2006 models.
Same Cadillac SRX engine reports on nearby years: 2005
Failure modes owners describe
Premature timing chain wear and failure
Timing chains, sprockets, actuators, guides, and tensioners wear prematurely, requiring replacement of multiple major engine components. Owners report this as a widespread defect affecting 2004–2008 SRX models. One complaint alleges the oil hole is too small to properly lubricate the chains, starving them of oil. Another mentions the crankshaft rubbing on the timing chain.
When: 35,000 to 100,000 miles
Symptoms owners cite: Check engine light illumination; Vehicle will not start; Hard startup and loud engine noise; Reduced power warning light with sudden speed loss (65 mph dropping to 20 mph)
Codes mentioned: P0008, P0017
Repairs/costs cited: Repairs range $1,300 to $3,500; one owner quoted $2,600–$2,800; repair time documented at 6.9 hours by dealer. GM Special Coverage Adjustment #11340 covers timing chain repair on 2007–2009 SRX to 120,000 miles, but 2006 models excluded.
Recalls/TSBs owners mention: TSB #3423 issued September 30, 2008 for 2004–2008 SRX models. GM issued extended warranty for 2007–2009 SRX to 120K miles for the same issue. GM used three different timing chain sets across production. 2006 owners report GM denied coverage and provided minimal assistance despite known defect.
Oil sending unit failure with recurrent leaks
Oil sending unit fails repeatedly, causing oil leaks onto the garage floor and creating a persistent problem that returns after multiple replacement attempts.
When: 68,000 miles and lower mileages
Symptoms owners cite: Oil leaking onto garage floor; No warning lights initially
Repairs/costs cited: One owner had the unit replaced 5 times; another had it replaced 4 times. Dealers have declined to continue repairs after multiple failures.
Recalls/TSBs owners mention: Manufacturer contacted but provided no additional assistance or remedy.
Low oil causing misfire and power loss
Excessive oil consumption or leakage leads to low oil levels, triggering misfire conditions and loss of engine power. Owner states the 3.6L motor 'leaks so much oil' that depletion creates drivability issues.
When: Undisclosed
Symptoms owners cite: Misfire condition; Misfire light illumination; Power loss during operation
Repairs/costs cited: Owner notes frequent oil level checks are necessary.
Sudden reduction in engine power during acceleration
While accelerating at highway speed (65 mph), the vehicle suddenly reduced speed to 20 mph after a 'reduced power to engine' warning flashed on the dashboard. Vehicle reset after shutdown and restart, but dealer could not duplicate or locate the failure.
When: 65,000 miles
Symptoms owners cite: Reduced power to engine warning light; Sudden speed reduction from 65 mph to 20 mph; Check engine light not illuminated at time of dealer visit
Engine continues running after shutdown
Engine fails to stop running after vehicle is shut off and air conditioning is turned off. Noise from under the hood suggests secondary motor activity within the engine.
When: 35,000 miles
Symptoms owners cite: Engine continues running after shutdown; Noise from under hood after AC shutdown
Repairs/costs cited: Vehicle was not diagnosed or repaired.
Recalls/TSBs owners mention: Dealer and manufacturer were not made aware of the failure.
Synthesized from 12 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 1 most recent
Had engine trouble with your 2006 Cadillac SRX?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2006 Cadillac SRX?
It's a documented issue but not catastrophic. 12 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Across the 11 complaints that reported odometer mileage, most engine failures cluster between 65,000 and 109,993 miles, with the median around 86,000. A quarter of owners report trouble before 65,000; a quarter make it past 109,993. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2006/Cadillac/SRX.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.