🏷️ Basic Information

Make:

Cadillac

Model:

STS

Year:

2006

Generation Designation:

Second Generation (2005-2012)

Vin Code:

Vehicle Identification Number (VIN) for 2006 Cadillac STS

👋 Introduction

Segment:

Full-size Luxury Sedan

Usp:

Cadillac's interpretation of American luxury, offering comfort, technology, and performance in a rear-wheel-drive (or available all-wheel-drive) platform.

Competitors:

BMW 5 Series, Mercedes-Benz E-Class, Audi A6, Lexus GS, Lincoln LS.

Platform:

GM Epsilon platform (shared with Chevrolet Impala, Saab 9-5, etc.), but significantly upgraded for luxury application.

Design Philosophy:

Art and Science design language, emphasizing sharp lines and a modern, sculpted appearance.

📋 Manual Details

Coverage Topics:

Introduction, Instrument Cluster, Entertainment Systems, Climate Controls, Lights, Driver Controls, Locks and Security, Seating and Safety Restraints, Driving, Customer Assistance, Reporting Safety Defects (U.S. only), Cleaning, Maintenance and Specifications, Engine Compartment, Engine Oil, Battery, Fuel Information, Air Filter(s), Part Numbers, Refill Capacities, Lubricant Specifications, Accessories, Service Information and Specifications, Maintenance Information and Specifications

Estimated Page Count:

Approximately 350-450 pages (estimated based on typical owner's manuals of this era and scope)

Type:

Owner's Manual

Language:

English

Format:

Digital PDF

📖 Manual Coverage

Powertrain:

Engine operation, fuel, lubrication, cooling, exhaust, and basic engine compartment overview.

Chassis:

Brakes, steering, suspension (general overview of operation).

Electrical:

Battery, charging system, lighting, instrument cluster, infotainment, climate control, power locks, security system.

Comfort Convenience:

Climate control operation, power seats, door locks, windows, mirrors, interior lighting, entertainment systems.

Safety Security:

Airbag system, seat belts, child seat anchors, child security locks, anti-theft system, keyless entry.

Routine Maintenance:

Checking fluid levels (oil, coolant, brake fluid, washer fluid), tire pressure checks, bulb replacement (basic).

Basic Operation:

Starting and stopping the engine, operating lights, wipers, climate controls, infotainment, power accessories.

Troubleshooting:

Warning lights and indicators, basic diagnostic information for common driver-reported issues.

Emergency Procedures:

Jumping the battery, changing a flat tire (location of tools and spare), towing information.

Depth:

Comprehensive owner-level information, focusing on operation, features, maintenance, and safety. Does not cover in-depth repair procedures or diagnostics requiring specialized tools.

📊 Manual Specifications

Required Software:

PDF Reader (e.g., Adobe Acrobat Reader, Foxit Reader, or comparable)

Device Compatibility:

Any device capable of reading PDF files (desktops, laptops, tablets, smartphones)

Quality Description:

Digital PDF, allowing for high-resolution viewing and printing. Content is directly from the factory original.

Binding:

N/A (Digital PDF format)

Paper Type:

N/A (Digital PDF format)

⚙️ Engine Specifications

Engine Code 1:

3.6L V6 (LGD)

Displacement 1:

3.6 liters (3564 cc)

Configuration 1:

V6, DOHC, 24 valves

Horsepower 1:

255 hp @ 6200 rpm

Torque 1:

250 lb-ft @ 4400 rpm

Engine Code 2:

4.6L V8 (Northstar - LH2)

Displacement 2:

4.6 liters (4600 cc)

Configuration 2:

V8, DOHC, 32 valves

Horsepower 2:

320 hp @ 6400 rpm

Torque 2:

315 lb-ft @ 4400 rpm

Fuel Delivery:

Multi-port Fuel Injection (MPFI)

Fuel Type:

Premium Unleaded Gasoline (91 octane or higher recommended)

🔧 Transmission

Transmission Type Standard:

6-speed automatic with Driver Shift Control

Transmission Type Optional:

N/A (only one transmission offered for 2006 model year)

Drive Type Standard:

Rear-Wheel Drive (RWD)

Drive Type Optional:

All-Wheel Drive (AWD) - available on both V6 and V8 models

Shift Modes:

Driver Shift Control (manual mode for gear selection)

📐 Dimensions

Length:

199.1 inches (5057 mm)

Width:

72.4 inches (1839 mm)

Height:

57.7 inches (1466 mm)

Wheelbase:

115.3 inches (2929 mm)

Trunk Volume:

15.4 cubic feet (436 liters)

Curb Weight V6 Rwd:

Approximately 3,860 lbs (1751 kg)

Curb Weight V8 AWD:

Approximately 4,150 lbs (1882 kg)

🛡️ Safety Features

NHTSA Frontal Driver:

5-Star (for 2005-2006 models)

NHTSA Frontal Passenger:

5-Star (for 2005-2006 models)

IIHS Front Offset:

Good (for 2005-2007 models)

ABS:

Standard Anti-lock Braking System (ABS)

Traction Control:

Standard Traction Control System (TCS)

Stability Control:

Standard StabiliTrak Electronic Stability Control (ESC)

Airbags Standard:

Frontal airbags, front side-impact airbags, side curtain airbags (front and rear occupants).

Seat Belts:

Three-point seat belts for all seating positions, front seat belt pretensioners and load limiters.

Child Anchors:

LATCH (Lower Anchors and Tethers for CHildren) system for rear seats.

💡 Technology Features

Audio System:

Bose premium audio system was commonly available, often with AM/FM/CD/MP3 player, and satellite radio (XM).

Navigation:

Optional DVD-based navigation system with a central touch screen display.

Climate Control:

Dual-zone automatic climate control with pollen filter.

Parking Assist:

Optional rear parking assist sensors.

Keyless Start:

Keyless Access and Start system (push-button start).

Phone Integration:

Optional Bluetooth hands-free phone system.

Cruise Control:

Standard cruise control, often with steering wheel controls.

🔧 Maintenance

Oil Change Interval:

Typically every 7,500 miles or 6 months, or based on oil life monitoring system. Refer to manual for specific details.

Tire Rotation:

Recommended every 7,500 miles.

Air Filter Replacement:

Check at 15,000 miles, replace as needed. Cabin air filter typically every 15,000 miles.

Coolant Replacement:

First replacement at 100,000 miles, then every 50,000 miles thereafter (or as indicated by maintenance minder).

Engine Oil Spec:

SAE 5W-30 Synthetic (dexos1 or equivalent recommended, refer to manual for specific API service classification)

Engine Oil Capacity V6:

Approximately 5.5 quarts (5.2 liters)

Engine Oil Capacity V8:

Approximately 5.0 quarts (4.7 liters)

Coolant Spec:

GM DEX-COOL (Orange) or equivalent silicate-free, long-life coolant

Transmission Fluid Spec:

Dexron VI Automatic Transmission Fluid (ATF)

Common Complaints V6:

Variable valve timing (VVT) system issues (rattles, timing chain noise), carbon buildup in intake ports.

Common Complaints V8:

Northstar engine specific issues can include coolant leaks (particularly rear main seal or head gaskets), oil leaks, and occasional accessory drive issues.

Suspension Steering:

Occasional reports of worn suspension bushings or steering components leading to noise or imprecise handling.

Electronics:

Infotainment system glitches, sensor failures (e.g., tire pressure monitoring system - TPMS).

📚 Vehicle History

Brand Legacy:

Cadillac, a division of General Motors, has a long history of producing American luxury vehicles known for comfort, style, and technological innovation.

Previous Generation Sts:

The STS nameplate was previously used for the Seville STS, which was produced until the 2004 model year. The 2006 STS represents a new generation and a rebranding of Cadillac's flagship sedan.

Second Gen Debut:

The second-generation STS was introduced for the 2005 model year, marking a significant departure from the front-wheel-drive Seville it replaced. It adopted a rear-wheel-drive platform and a more sporting character.

Manufacturing Plant:

Lansing Grand River Assembly Plant, Lansing, Michigan, USA

🏆 Awards & Recognition

Safety Award:

Achieved 5-star frontal crash test ratings from NHTSA.

IIHS Rating:

Rated 'Good' in the IIHS front offset crash test.

Quality Certification:

As a Cadillac, it was designed to meet premium automotive quality and comfort standards.