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Exterior lightingPart report

2007 Cadillac STS Exterior lighting Problems

Complaints
6about this part
Share
12%of 52 total for the year
Median mileage
85,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the exterior lighting of the 2007 Cadillac STS, 12% of the 52 complaints for this model year. Where a mileage was given, the median is 85,000 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.

“#1 the above mentioned vehicle was purchased in chicago on december 22, 2009. The odometer read 29,832 miles. When the car was driven back to maryland, a maryland vehicle inspection was required. The headlights failed the inspection. #2 over the past two years, condensation built up inside both the headlights. In the past month, I noticed there was one inch of water in the driver side headlight. The water has now shorted out the light. I believe this problem is a defect and I have read similar complaints on car forums on the internet. …”

NHTSA complaint #10505058, filed 2013-03, 30,597 miles

“The headlights have a major fogging issue which leads to impaired visibility both for the driver of the car and for other drivers on the road. This issue is being reported in STS and cts Cadillac forums at least as far back as 2008. I believe this is a defect in either the design or manufacturing of these components.”

NHTSA complaint #10664003, filed 2014-12, 85,000 miles

“Left headlight fills with water during a rainstorm or car wash. Headlamp is foggy with moisture reducing the light output and will cause a premature headlamp failure.”

NHTSA complaint #11012713, filed 2017-08, 155,000 miles

“My Cadillac STS left front light seal leaks water into it and now the headlight won't come on. This was notice upon purchasing the vehicle and was told it was a manufactures problem. Now my head lamp only works on brights.”

NHTSA complaint #10860280, filed 2016-04

“Air bag on the steering wheel has oozing glue that oozed/leaked out of the airbag and has hardened on outer cover! Lights and radio don’t disconnect or turn off when car is turned off and drain battery.”

NHTSA complaint #11548517, filed 2023-10

Related service bulletins

Exterior lighting: other model years

YearComplaintsShare of year
2011114%
200917%
200824%
2007612%
200555%
2004114%
2003113%
200118%
200018%

Other parts of the 2007 Cadillac STS

Air bags
16 complaints
Electrical system
11 complaints
Electronic stability control
6 complaints
Transmission and drivetrain
5 complaints
Engine
4 complaints
Brakes
3 complaints
Fuel system
3 complaints
Vehicle speed control
3 complaints
Body and structure
2 complaints
Visibility (wipers, defrost, mirrors)
2 complaints
Engine cooling
1 complaints
Other or unknown
1 complaints

← All problems reported for the 2007 Cadillac STS

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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