🏷️ Basic Information

Make:

Chevrolet

Model:

Impala

Year:

2018

Production Code Prefix:

1G

Vehicle Identification Number Prefix:

1GN

👋 Introduction

Vehicle Segment:

Full-size sedan, competing in a segment with strong contenders like the Toyota Avalon, Nissan Maxima, and Dodge Charger.

Target Demographic:

Buyers seeking a comfortable, spacious, and refined sedan with American styling and available V6 power.

Key Strengths Vs Competitors:

Stylish exterior design, comfortable ride, powerful V6 engine option, spacious interior.

Body Style:

4-door sedan

Platform:

GM Epsilon II platform

📋 Manual Details

Engine Options Covered:

2.5L (LUK), 3.6L (LFX)

Transmission Options Covered:

6-speed automatic (M3X, MYB)

Trim Levels Covered:

LS, LT, Premier

Approximate Page Count:

3000+

Manual Classification:

Factory Service Manual (FSM)

Language:

English

Format:

Digital (PDF)

📖 Manual Coverage

Engine Mechanical:

Complete overhaul, internal components, cooling system, exhaust system, intake system, engine mounting, timing systems.

Engine Electrical:

Ignition system, fuel injection system, charging system, starting system, ECM/PCM diagnosis and repair, sensors, actuators.

Transmission Drivetrain:

Automatic transmission repair (M3X, MYB), torque converter, transmission control module (TCM), drive shafts, axles, differential.

Brakes:

Hydraulic system, ABS, EBD, traction control, brake pads, rotors, calipers, lines, master cylinder, parking brake.

Suspension Steering:

Front and rear suspension components, struts, shocks, control arms, bushings, power steering system, steering column, wheel alignment.

Electrical Body:

Lighting system (headlights, taillights, interior), power accessories (windows, locks, mirrors), body control module (BCM), wiring diagrams, fuses, relays.

HVAC:

Air conditioning system, heating system, climate control module, refrigerant, blower motor, evaporator, condenser.

Safety Restraints:

Airbag system, seat belts, SRS module, occupant classification system.

Maintenance Tasks:

Oil changes, filter replacements, fluid checks and replacements, spark plug replacement, belt inspections and replacement.

Troubleshooting Diagnostics:

Diagnostic trouble codes (DTCs), symptom-based diagnostics, component testing, wiring harness testing.

Repair Procedures:

Component removal and installation, component rebuilding, panel replacement, interior trim removal and installation.

Technical Specifications:

Torque specifications, clearances, alignments, fluid capacities and types, electrical schematics.

Depth Of Coverage:

Comprehensive, from basic scheduled maintenance to full engine and transmission overhauls, including advanced electrical diagnostics.

📊 Manual Specifications

File Type:

PDF

Searchability:

Searchable text content for quick information retrieval.

Image Resolution:

High-resolution diagrams and illustrations.

Binding For Digital:

N/A (Digital format)

Paper Type For Digital:

N/A (Digital format)

⚙️ Engine Specifications

Engine Code 1:

LUK

Engine Displacement 1:

2.5 Liters (2492 cc)

Engine Configuration 1:

Inline 4-cylinder

Engine Aspirations 1:

Naturally Aspirated

Horsepower 1:

197 hp @ 6300 rpm

Torque 1:

191 lb-ft @ 4400 rpm

Fuel Type 1:

Regular Unleaded Gasoline

Engine Code 2:

LFX

Engine Displacement 2:

3.6 Liters (3649 cc)

Engine Configuration 2:

V6

Engine Aspirations 2:

Naturally Aspirated

Horsepower 2:

305 hp @ 6800 rpm

Torque 2:

264 lb-ft @ 5200 rpm

Fuel Type 2:

Regular Unleaded Gasoline

Fuel Delivery:

Direct Injection (DI)

Recommended Oil Type 1:

SAE 0W-20 Full Synthetic (Dexos1 Gen 2)

Oil Capacity 1 Qt:

4.7

Recommended Oil Type 2:

SAE 0W-20 Full Synthetic (Dexos1 Gen 2)

Oil Capacity 2 Qt:

5.5

🔧 Transmission

Transmission Type:

6-speed automatic

Transmission Codes:

M3X (2.5L), MYB (3.6L)

Transmission Fluid Type:

Dexron-VI Automatic Transmission Fluid

Transmission Fluid Capacity Qt:

7.0

📐 Dimensions

Length In:

197.0

Width In:

73.0

Height In:

57.9

Wheelbase In:

116.7

Front Headroom In:

39.9

Rear Headroom In:

37.9

Front Legroom In:

42.3

Rear Legroom In:

39.8

Total Passenger Volume Cu Ft:

107.4

Trunk Volume Cu Ft:

15.2

Curb Weight Lbs 2.5L:

3642

Curb Weight Lbs 3.6L:

3737

Standard Wheel Size:

18-inch alloy

Standard Tire Size:

P245/45R18

Bolt Pattern:

5x120mm

🛡️ Safety Features

NHTSA Overall Rating:

5-Star (Overall)

IIHS Top Safety Pick:

Yes (for specific configurations and model years)

Standard Active Safety:

StabiliTrak electronic stability control, traction control, anti-lock brakes (ABS), daytime running lights.

Optional Driver Assistance:

Forward Collision Alert, Lane Departure Warning, Rear Cross-Traffic Alert, Side Blind Zone Alert, Adaptive Cruise Control.

Standard Passive Safety:

Ten airbags (front, side-impact, knee, rear side-impact), LATCH child seat anchors, OnStar® with Automatic Crash Response.

💡 Technology Features

Infotainment System:

Chevrolet MyLink infotainment system with 8-inch diagonal color touchscreen.

Connectivity Features:

Apple CarPlay, Android Auto, Bluetooth, available 4G LTE Wi-Fi hotspot.

Available Driver Assistance Systems:

See optional safety features section. Includes radar and camera-based systems for enhanced awareness and collision avoidance.

Suspension Tuning:

Sport-tuned suspension available on Premier trims for improved handling characteristics.

🔧 Maintenance

Oil Change Interval Miles:

7,500 miles or 12 months (synthetic oil)

Tire Rotation Interval Miles:

7,500 miles

Engine Air Filter Replacement Miles:

30,000-50,000 miles (check visually)

Cabin Air Filter Replacement Miles:

20,000-30,000 miles (check visually)

Spark Plug Replacement Miles 2.5L:

97,500 miles (iridium)

Spark Plug Replacement Miles 3.6L:

97,500 miles (iridium)

Transmission Fluid Change Miles:

100,000 miles (under normal driving conditions, consult manual for severe)

Coolant Type:

Dex-Cool® OAT (Organic Acid Technology) Extended Life Antifreeze/Coolant, Orange

Coolant Capacity Qt:

10.7 (2.5L), 12.9 (3.6L)

Brake Fluid Type:

DOT 3

Common Complaints 2018:

Some reports of minor electrical glitches, occasional transmission shift hesitancy, and premature wear on some suspension components. The manual details diagnostic procedures for these and more.

📚 Vehicle History

Chevrolet Legacy:

Chevrolet, founded in 1911, is one of America's oldest and most iconic automotive brands, known for its wide range of vehicles from trucks to performance cars.

Impala Lineage:

The Impala nameplate has a storied history dating back to 1958, evolving through numerous design and engineering changes. The 2014-2020 generation marked a significant departure with its move to a front-wheel-drive platform and modern design.

Manufacturing Location:

Detroit-Hamtramck Assembly Plant, Detroit, Michigan, USA

Production Years Current Gen:

2014-2020

🏆 Awards & Recognition

Previous Generation Awards:

While specific awards for the 2018 model year are less prominent, the Impala has historically been recognized for its styling and comfort in prior generations.