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Exterior lightingPart report

2008 Cadillac DTS Exterior lighting Problems

Complaints
7about this part
Share
8%of 86 total for the year
Median mileage
27,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 7 complaints about the exterior lighting of the 2008 Cadillac DTS, 8% of the 86 complaints for this model year. Where a mileage was given, the median is 27,000 miles. 1 a fire, according to the filers.

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.

“The dash lights are intermittent, or very dim. The brightness does not come on for miles at a time. You cannot see the speedometer to see how fast you are going. It is a safety issue. In motion, city streets and on the highway. Have reported this to Cadillac and have had it to the Cadillac dealer. They say there is nothing wrong. I have had it to earnhardt Cadillac scottsdale, az. So far no fix. This has been going on for years. After the warranty stopped I did not go back to dealer.”

NHTSA complaint #11063720, filed 2018-01, 27,000 miles

“There is a 41 inch brake light installed on the trunk lid which costs $223.75 to replace. It would have been no big deal, but, as I was replacing it, I noticed it was never properly fitted to the trunk at the factory, which caused the original damage, broken completely through in the middle, and several cracks, not working. To bolt on a new one improperly fitted will cause the same damage because the hard plastic is under heavy stress when tightened down. …”

NHTSA complaint #10625835, filed 2014-08, 4,572 miles

“The daytime running lights and front turn signal light sockets in both headlamps have burnt contacts. I took my 2008 Cadillac DTS to the dealer to have the bulbs replaced as my turn signals weren't working. They replaced the bulbs. Two days later they quit working again. I took the car back and they checked it again and informed me that the lamp sockets were burnt and that I would have to replace the entire headlamp assembly because there wasn't a replacement socket available. The cost was going to be approximately $1000 each with labor. …”

NHTSA complaint #10653416, filed 2014-11, 68,000 miles

“Dash lighting is dimmed when ever headlights are on during daylight hours. Automatic system does not return panel light levels to daylight brightness. This makes the dash invisible in bright daylight. Condition exists until the sun is high in the sky. Dealer says this is a design issue! Owners manual says that parade dimming capability in car electronic is intended to prevent this from happening. This is a major safety hazzard. I have taken the car to the dealer several times, they have no cure. I have called the customer assistance number. No one ever returns my call. …”

NHTSA complaint #10380678, filed 2011-02, 200 miles

“Email forwarded about concerns on GM cadillacs, the turn signal will not turn off unless the vehicle makes a 90 degree turn, was told by dealer that this problem can not be repaired.”

NHTSA complaint #10214984, filed 2008-01

Related service bulletins

Exterior lighting: other model years

YearComplaintsShare of year
201015%
200878%
20071414%
20067931%
2005111%

Other parts of the 2008 Cadillac DTS

Electrical system
39 complaints
Engine
14 complaints
Fuel system
11 complaints
Air bags
6 complaints
Other or unknown
6 complaints
Seat belts
6 complaints
Steering
5 complaints
Body and structure
5 complaints
Brakes
4 complaints
Visibility (wipers, defrost, mirrors)
4 complaints
Electronic stability control
3 complaints
Engine cooling
2 complaints

← All problems reported for the 2008 Cadillac DTS

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