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Engine coolingPart report

2000 Cadillac SLS Engine cooling Problems

Complaints
5about this part
Share
45%of 11 total for the year
Median mileage
70,700miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the engine cooling of the 2000 Cadillac SLS, 45% of the 11 complaints for this model year. Where a mileage was given, the median is 70,700 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.

“Good morning;I had purchased a 2000 Cadillac seville(SLS)used and the car shut off as I was driving on a major highway. The instrument panel (digital)started flashing engine is hot,vehicle engine must be shut down. The car started loosing power and I was able to steer off to the side of road. I'm not sure if the engine would have overheated and caught fire or not? I returned this vehicle to used car dealer for refund. I was told to take it to a garage and I discovered the radiator cap was leaking. It was replaced. To me it looked like it was warped? …”

NHTSA complaint #10276942, filed 2009-07, 160,000 miles

“Consumer stated vehicle would stall intermittently without warning. Vehicle had been checked by a dealer several times, but was unable to determine cause. Problem has existed since vehicle was purchased. Ts. Also due to the engine stalling the power steering, brakes, and all lights had become inoperative. Scc”

NHTSA complaint #8023214, filed 2002-11, 6,000 miles

“After my 35,000 mile service the engine began using oil. I have the oil changed every 3,000 miles at the local dealer. This last time I used 4 quats between oil changes. The dealer tells me this in normal for the northstar engine. I find this hard to believe. Please advise.”

NHTSA complaint #760210, filed 2002-04

“The contact owns a 2000 Cadillac seville SLS. While driving 10 MPH, the vehicle stalled then shut off without warning. The contact was able to restart the vehicle. The dealer was unable to duplicate the failure. The current and failure mileages were 70,700.”

NHTSA complaint #10222260, filed 2008-03, 70,700 miles

“Engine seals leaked everywhere, dealer had to rebuild engine 1 yr ago, now engine block was reportedly weeping so the entire engine needed to be replaced. Only 60000 miles, Cadillac did cover most of the costs.”

NHTSA complaint #10173708, filed 2006-11

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
2002330%
2000545%
1999240%

Other parts of the 2000 Cadillac SLS

Electrical system
2 complaints
Interior lighting
1 complaints
Body and structure
1 complaints
Tires
1 complaints
Vehicle speed control
1 complaints

← All problems reported for the 2000 Cadillac SLS

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