2008 Cadillac DTS problems & reliability
86 owner complaints filed with NHTSA for the 2008 Cadillac DTS, alongside 3 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
5 complaints report injuries (7 injured).
Federal crash records (FARS 2020–2023): 2008 Cadillac DTS vehicles were involved in 19 fatal crashes with 14 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Electrical System | 39 | 45% |
| Engine | 14 | 16% |
| Fuel/propulsion System | 8 | 9% |
| Exterior Lighting | 7 | 8% |
| Air Bags | 6 | 7% |
| Seat Belts | 6 | 7% |
| Unknown OR Other | 6 | 7% |
| Steering | 5 | 6% |
| Structure | 5 | 6% |
| Electronic Stability Control (esc) | 3 | 3% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 86,691 miles (middle 50% between 50,750 and 101,250 miles), based on 64 complaints that included mileage.
Complaints by incident year
What owners report
“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…”
Engine · filed Aug 26, 2024
“Tire size: 235/55R17 99H In February 2022, I purchased a set of 4 Yokahama tires from Discount Tire Co., located at 2707 NW Loop 410, San Antonio, TX 78230. The mileage on the car was approx. 89,000. In February of 2024, my mechanic notice tread lifting on the tires, so I took the car to Discount Tire Co., located at…”
Tires · filed Aug 15, 2024
“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…”
Electrical System · filed Aug 12, 2022
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- NON-CRASH ENGINE COMPARTMENT FIRES
Engineering Analysis EA08010 · opened Jun 12, 2008 · closed Sep 8, 2008 · led to recall 08V441000
Technical service bulletins
914 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2008 Cadillac DTS. The 10 most recent:
New Vehicle Monitoring Programs Section in IVH
13598 · Other · issued Sep 9, 2025
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may…
PIC5650M · Service Bulletin/Repair Instructions · issued Aug 7, 2025
This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
PIP5601C · Service Bulletin/Repair Instructions · issued Jul 18, 2025
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
PIT5074R · Service Bulletin/Repair Instructions · issued May 30, 2025
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
PIT5074R · Service Bulletin/Repair Instructions · issued May 30, 2025
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
PIT5074R · Service Bulletin/Repair Instructions · issued May 30, 2025
This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or…
PIP5358D · Service Bulletin/Repair Instructions · issued Feb 20, 2025
This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe…
PIT5074Q · Service Bulletin/Repair Instructions · issued Dec 7, 2024
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8…
PIP4723J · Service Bulletin/Repair Instructions · issued Oct 25, 2024
This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
04-06-04-051J · Service Bulletin/Repair Instructions · issued Sep 27, 2024
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2008 Cadillac DTS has 3 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2008 Cadillac DTS?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 86,691 miles — budget accordingly if the car is approaching that mileage.