Problems · NHTSA complaints

2008 Cadillac DTS problems

Owners filed 86 complaints about the 2008 Cadillac DTS with NHTSA between Jan 2008 and Aug 2024. The most-cited component is electrical system (39).

Complaints
86
Filed with NHTSA
Crashes
6
Reported by owners
Fires
6
Reported by owners
Injuries
7
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Electrical system39
  2. Engine14
  3. Fuel/propulsion system8
  4. Exterior lighting7
  5. Air bags6
  6. Seat belts6
  7. Steering5
  8. Structure5
  9. Electronic stability control (esc)3
  10. Service brakes3
  11. Fuel system, gasoline3
  12. Engine and engine cooling2
  13. Visibility/wiper2
  14. Power train2

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Nov 8, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20086
20092
20104
20114
20121
20136
201422
20156
20164
20176
20184
20198
20207
20211
20222
20231
20242

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Electrical system

39 reports1 crash4 fires3 related recalls
“The contact owns a 2008 Cadillac DTS. The contact stated while driving at an undisclosed speed, the message "Alternator Not Charging" was displayed. The vehicle was taken to an independent mechanic where it was diagnosed that oil was leaking onto the alternator and exhaust manifold. The alternator was replaced. However, the contact stated while driving at various speeds, there was a significant amount of smoke coming from underneath the vehicle. There was no warning lights illuminated. Additionally, the contact noticed a trail of oil leak in the driveway. The dealer and the manufacturer were not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 87,000.”
Owner complaint to NHTSAFiled Aug 12, 2022Electrical system, Engine and engine coolingODI 11479055

Engine

14 reports1 fire
“The contact owns a 2008 Cadillac DTS. The contact stated that while the vehicle was at an independent mechanic for an oil change, the vehicle was diagnosed with an oil leak from the oil pan. The contact was informed that the oil pan needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 85,000. The VIN was unavailable.”
Owner complaint to NHTSAFiled Aug 26, 2024EngineODI 11611001

Fuel/propulsion system

8 reports2 fires
“DECEMBER 16 2020 NHTSA ID NUMBER 11383838 OIL LEAK UNDER ENGINE COMING FROM ENGINE, TRANSMISSION, AND POWER STEERING PUMP. ALSO WHITE SMOKE COMING FROM ENGINE ON PASSENGER SIDE FOLLOWING STOP ON DRIVEWAY.”
Owner complaint to NHTSAFiled Mar 18, 2021Unknown or other, Engine, Fuel/propulsion systemODI 11403767

Exterior lighting

7 reports1 fire
“TL* THE CONTACT OWNS A 2008 CADILLAC DTS. WHILE INSPECTING THE VEHICLE, THE CONTACT NOTICED THAT THE HEADLIGHTS WERE PROJECTING TOO MUCH HEAT AND CAUSED THE PLASTIC COVERS TO BURN AND MELT FROM THE INSIDE. THE VEHICLE WAS TAKEN TO RILEY CHEVROLET BUICK GMC (2033 CHRISTY DR, JEFFERSON CITY, MO 65101, (573) 298-6142) WHERE THE CONTACT WAS INFORMED THAT THE FAILURE WAS COSMETIC. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 105,000.”
Owner complaint to NHTSAFiled Oct 17, 2018Exterior lightingFire reportedODI 11140821

Air bags

6 reports4 crashes
“TL* THE CONTACT OWNS A 2008 CADILLAC DTS. WHILE DRIVING 30 MPH, A DEER CRASHED INTO THE FRONT PASSENGER SIDE OF THE VEHICLE. THE AIR BAGS FAILED TO DEPLOY. THERE WERE NO INJURIES. THE VEHICLE WAS TAKEN TO A PRIVATE MECHANIC WHERE IT WAS DIAGNOSED THAT THE COMPUTER MODULE NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED AND THE MANUFACTURER WAS NOT NOTIFIED. THE CONTACT RECEIVED A RECALL NOTICE FOR NHTSA CAMPAIGN NUMBER: 14V355000 (ELECTRICAL SYSTEM); HOWEVER, THE PART NEEDED TO REPAIR THE VEHICLE WAS UNAVAILABLE. THE FAILURE MILEAGE WAS 90,000.”
Owner complaint to NHTSAFiled Sep 16, 2014Electrical system, Air bagsCrash reportedODI 10633541

Seat belts

6 reports1 crash
“TL* THE CONTACT OWNS A 2008 CADILLAC DTS. THE CONTACT STATED THAT THE REAR DRIVER AND PASSENGER SIDE SEAT BELTS FAILED TO PROPERLY FIT ACROSS THE CHEST AREA AND WENT ACROSS THE NECK AREA. THE CONTACT STATED THAT THE SHOULDER ANCHOR WAS ADJUSTED TO THE LOWER LEVEL BUT THE SEAT BELT CONTINUED TO LIE ACROSS THE NECK AREA. THE CONTACT WAS CONCERNED THAT IN THE EVENT OF A CRASH, THE SEAT BELT WOULD CAUSE FATAL INJURIES. ALSO, THE CONTACT STATED THAT HER NECK WAS BLISTERED DUE TO THE FAILURE BUT MEDICAL ATTENTION WAS NOT REQUIRED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND RECOMMENDED THE CONTACT TO PURCHASE SEAT BELT PADS. THE FAILURE MILEAGE WAS 50,000.”
Owner complaint to NHTSAFiled Nov 7, 2014Seat beltsODI 10653477
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 8, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.