2005 Cadillac Deville: common problems

Owners of the 2005 Cadillac Deville filed 95 complaints with NHTSA, most often about electrical system and steering. Details by component below, with sources.

Key figures

Owner complaints: 95
involving a crash: 10

What fails most often

1 Electrical system 36% of all complaints
2 Steering 31% of all complaints
3 Air bags 19% of all complaints
4 Engine 11% of all complaints
5 Service brakes 8% of all complaints
6 Powertrain 4% of all complaints
7 Visibility 4% of all complaints
8 Engine and cooling 3% of all complaints

Circle size and colour show each component’s share of NHTSA complaints. Schematic only, not a drawing of the exact model.

Electrical system: 34 complaints (36% of all), 2 of them with a crash reported by the owner.
Steering: 29 complaints (31% of all), 2 of them with a crash reported by the owner.
Air bags: 18 complaints (19% of all), 8 of them with a crash reported by the owner.
Engine: 10 complaints (11% of all), 2 of them with a crash reported by the owner.
Service brakes: 8 complaints (8% of all), 1 of them with a crash reported by the owner.

Engines and transmissions

US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.

4.6 L · petrol · 8 cyl
automatic, 4-speed

Drive: FWD

Symptoms owners describe

How many of the 95 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).

steering or power steering problems18 · 19%
stalls while driving10 · 11%
airbags did not deploy5 · 5%
oil leak or consumption5 · 5%
warning lights, check engine5 · 5%
windows, sunroof5 · 5%
airbag warning light4 · 4%
headlights and tail lights4 · 4%
smoke, burning smell, fire4 · 4%
brake failure3 · 3%

Components owners complain about

Component	Owner complaints	involving a crash
Electrical system	34	2
Steering	29	2
Air bags	18	8
Engine	10	2
Service brakes	8	1
Powertrain	4	0
Visibility	4	0
Engine and cooling	3	0
Exterior lighting	3	0
Seats	3	1
Electronic stability control	2	1
Fuel/propulsion system	2	0
Structure	2	0
Suspension	2	0

What owners report

Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.

While driving approximately 55 mph, the engine seized. The vehicle crashed into a median and the air bags failed to deploy. The driver sustained major injuries, including two broken feet and a concussion. The driver required medical assistance. A police report was not filed.
Electrical system · crash · 2015-10-02 · NHTSA complaint #10779350
The air bags failed to deploy. A police report was filed. The contact sustained neck and shoulder injuries, which required medical attention. The vehicle was destroyed. The manufacturer was notified. The approximate failure mileage was 117,000.
Air bags · crash · 2014-10-14 · NHTSA complaint #10644647
While traveling approximately 50 mph, the vehicle suddenly stalled. The contact lost control of the vehicle and crashed into a guardrail. The air bags failed to deploy. A police report was filed. The driver sustained injuries to the breast plate and ribs. The driver and two passengers received medical attention.
Electrical system · crash · 2014-10-06 · NHTSA complaint #10641682
Car went dead and steering brakes failed to operate properly. Seat became unlocked. I was jammed under steering wheel. Engine and car dead. Front end and rear end total, never received replacement. Insurer was geico, repaired at their recommended facility.
Air bags · crash · 2014-10-05 · NHTSA complaint #10641495
The contact stated that while driving various speeds, the vehicle swerved and crashed into a fire hydrant. A police report was filed and no injuries were sustained. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and the failure mileage was 47,000.
Steering · crash · 2014-08-18 · NHTSA complaint #10626086
The air bags failed to deploy. The insurance company stated that the vehicle was destroyed. The manufacturer will be notified. The current and failure mileages were 68,000. Updated 8/18/09 updated 08/21/09.
Air bags · crash · 2009-07-23 · NHTSA complaint #10278093
On the road failure of hydraulic brake line due to rust corrosion while driving on highway.
Service brakes · 2017-11-07 · NHTSA complaint #11044172
The contact stated that while driving at approximately 25 mph and attempted to make a turn, the steering wheel locked. No warning indicators illuminated. The contact mentioned that the failure progressed. The contact had to shut the vehicle off and restart in order to make the turn.
Steering · 2017-08-31 · NHTSA complaint #11020729

When owners complained

NHTSA complaints by filing year. The peak shows at what age the problems show up most.

20053
20062
20074
20082
20093
20105
20114
20125
20136
201443
201510
20163
20174
20191

Comparison

By complaint count this model year ranks 3,695 of 36,656 model years in the NHTSA data (top 10% most complained about).

On average one model year of the Deville has 83 complaints (33 years in the data). This year has 95, above average.

What to check before buying

Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Steering. Steering play, power assist, rack and tie rods after a wheel impact.
Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
Engine. Cold start, unusual noises, oil leaks and engine codes.

Questions and answers

What are the most common problems with the 2005 Cadillac Deville?

Owner complaints to NHTSA most often mention: electrical system, steering, air bags. Total complaints: 95. The most frequent symptoms in complaint texts: steering or power steering problems (19%), stalls while driving (11%), airbags did not deploy (5%).

How many service bulletins (TSB) were issued for the 2005 Cadillac Deville?

NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.

Should I buy a 2005 Cadillac Deville from a US auction?

Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.

Other 2005 models

Read also

Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.