🏷️ Basic Information

Make:

Cadillac

Model:

CTS

Year:

2009

Platform:

GM Sigma

👋 Introduction

Positioning:

The 2009 Cadillac CTS was positioned as Cadillac's mid-size luxury sport sedan, competing with established German and American luxury brands. It offered a blend of performance, comfort, and technology.

Competitors:

BMW 5 Series, Mercedes-Benz E-Class, Audi A6, Lexus GS, Infiniti M35/M45, Lincoln MKS.

Features:

Sigma platform, rear-wheel-drive biased, available all-wheel-drive, direct-injection V6 engines, optional performance packages, refined interior, and modern styling.

Value:

Empowers owners to perform their own maintenance and repairs, saving significant costs on labor. Provides detailed, factory-level information for accurate diagnosis and repair, ensuring optimal vehicle performance and longevity.

📋 Manual Details

Coverage:

All models, engines, trims, and transmissions for the 2009 Cadillac CTS

Count:

Estimated 2500-3500 pages (typical for a complete workshop manual of this era)

Type:

Complete Workshop Service Repair Manual

Language:

English

Format:

Downloadable Digital Format (PDF)

📖 Manual Coverage

Engine:

3.6L V6 DI VVT (LF3), 2.8L V6 (LAU), 3.6L V6 (LY7) - including diagnostics, repair, overhaul, cooling, lubrication, and emissions control

Transmission:

6-speed automatic (6L45, 6L50, 6L80), 6-speed manual (MG3) - including operation, diagnostics, repair, fluid specifications, and torque converter

Drivetrain:

Rear-wheel drive (RWD), All-wheel drive (AWD) - including differential, driveshafts, axles, and hubs

Suspension:

Front independent SLA (short-long arm), Rear multi-link - including springs, shock absorbers, control arms, ball joints, bushings, and wheel alignment procedures

Brakes:

Front vented discs, Rear solid discs, ABS, Traction Control (TC), StabiliTrak - including brake fluid, pad replacement, caliper service, rotor resurfacing/replacement, bleeding procedures, and diagnostic trouble codes (DTCs)

Steering:

Electric Power Steering (EPS) - including column, rack and pinion, power steering fluid, and alignment

Electrical:

Battery, charging system, starter, ignition system, lighting, horns, wipers, washers, power windows, power locks, power seats, body control modules (BCM), instrument cluster, diagnostic systems (OBD-II), fuse/relay locations, wiring diagrams

HVAC:

Air conditioning system, heater core, climate control module, refrigerant, compressor, blower motor, actuators

Body:

Exterior body panels, doors, hood, trunk, bumpers, glass, seals, interior trim, seats, airbags, seat belts

Chassis:

Frame, subframes, exhaust system, fuel tank, fuel lines

Maintenance:

Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, air filter replacement, tire rotations

Diagnostics:

System-specific diagnostic procedures, DTC lookup and interpretation, sensor testing, circuit testing

Repair:

Component removal and installation, part replacement, sub-assembly repair, troubleshooting guides

Overhaul:

Engine rebuild procedures, transmission overhaul, differential rebuilding

Installation:

Accessory installation, component upgrades (where applicable)

Technical Specifications:

Torque specifications, clearances, fluid capacities, electrical specifications, diagnostic parameters

Depth:

Comprehensive: Covers everything from basic maintenance and troubleshooting to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures.

📊 Manual Specifications

Format:

PDF

Quality:

High-resolution scans with clear text and images for readability and accurate reproduction.

Type:

N/A (Digital Download)

Type:

N/A (Digital Download)

Requirement:

Adobe Reader (or compatible PDF viewer)

⚙️ Engine Specifications

Engine 1:

3.6L DOHC 24-valve V6 VVT (LF3)

Hp 1:

304 hp @ 6400 rpm

Torque 1:

273 lb-ft @ 5200 rpm

Hp 2:

255 hp @ 6200 rpm

Torque 2:

260 lb-ft @ 5700 rpm

Hp 3:

210 hp @ 6500 rpm

Torque 3:

189 lb-ft @ 5200 rpm

System 1:

Direct Injection (DI), sequential port fuel injection

System 2:

Sequential Multi-Port Fuel Injection (MPI)

System 3:

Sequential Multi-Port Fuel Injection (MPI)

Engine 2:

3.6L DOHC 24-valve V6 VVT (LY7)

Engine 3:

2.8L DOHC 24-valve V6 VVT (LAU)

Drive Type:

Timing Chain (LF3, LY7, LAU)

🔧 Transmission

Transmission Type:

6-speed automatic (6L45 for 2.8L and 3.6L LY7, 6L50/6L80 for 3.6L LF3)

Transmission Type Optional:

6-speed manual (MG3) available on certain trims/engines

Auto Modes:

Driver Shift Control (manual shifting mode)

Fluid Type:

Dexron VI (DEXRON-VI) Automatic Transmission Fluid

📐 Dimensions

Length:

Approx. 191.5 inches

Width:

Approx. 72.5 inches

Height:

Approx. 57.2 inches

Wheelbase:

Approx. 113.4 inches

Curb Weight Min:

Approx. 3700 lbs (RWD)

Curb Weight Max:

Approx. 4000 lbs (AWD)

Trunk Volume:

Approx. 13.6 cu ft

🛡️ Safety Features

NHTSA Front Driver 2009:

5 Stars

NHTSA Front Passenger 2009:

5 Stars

IIHS Top Safety Pick 2009:

Yes

Active Safety:

Anti-lock Braking System (ABS), Traction Control System (TCS), StabiliTrak Electronic Stability Control

Airbags:

Frontal airbags, side-impact airbags, curtain side-impact airbags

Seat Belts:

Three-point seat belts with pretensioners and load limiters

💡 Technology Features

System Name:

Cadillac User Experience (CUE) - early generation

Features:

Optional Bose premium audio system, navigation system, Bluetooth connectivity, CD/MP3 player, auxiliary input.

Driver Aids:

Available adaptive cruise control, parking assist sensors (front and rear), rearview camera.

Connectivity Features:

OnStar telematics system for safety and concierge services, Bluetooth for phone connectivity.

🔧 Maintenance

Oil Change Interval:

Typically every 7,500 miles or 12 months, or as indicated by the Oil Life Monitoring System (OLMS).

Engine Air Filter:

Inspect every 15,000 miles, replace as needed or approximately every 45,000 miles.

Cabin Air Filter:

Replace approximately every 15,000-25,000 miles or as needed.

Spark Plugs:

Platinum-tipped plugs typically have a service interval of 100,000 miles. Iridium plugs may vary.

Engine Oil:

SAE 5W-30 Synthetic (meeting GM spec for LF3/LY7)

Coolant:

GM Delco-Green (GMC 6043-M) or equivalent (50/50 mix with distilled water)

Brake Fluid:

DOT 3

Power Steering Fluid:

Dexron VI or specified GM fluid (for EPS, refer to manual for specific system)

Engine Oil Consumption:

Some earlier 3.6L V6 engines (particularly non-DI) could exhibit oil consumption issues due to piston ring design or PCV system faults.

Evaporative Emission System:

Problems with the EVAP system purge solenoid or vent solenoid can trigger check engine lights (e.g., P0449, P0455).

Suspension Component Wear:

Ball joints, control arm bushings, and sway bar links can experience wear, leading to clunking noises or alignment issues.

Power Steering Failure:

Early EPS systems could experience failures of the electric motor or steering column components.

Overview:

The manual details scheduled maintenance every 7,500 miles, 15,000 miles, 30,000 miles, 60,000 miles, and beyond, including inspections and replacements of various fluids, filters, belts, and wear items.

📚 Vehicle History

Heritage:

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

Evolution Summary:

The 2009 CTS marked the second generation of the CTS model, introduced for the 2008 model year. It represented a significant shift in Cadillac's design language ('Art and Science') and performance focus, moving to the rear-wheel-drive Sigma platform and offering more potent V6 engines.

Manufacturing Location:

Lansing, Michigan, USA

🏆 Awards & Recognition

Recognition 1:

Named one of Car and Driver's '10Best' for 2008.

Recognition 2:

Achieved top safety ratings from NHTSA and IIHS.