Check engine oil level — must be between MIN and MAX on dipstick

Check coolant level in overflow reservoir

Check power steering fluid level

Check brake fluid level in master cylinder reservoir

Check transmission fluid level

Inspect all tires for proper inflation and visible damage

Check fuel level — sufficient for mission

Check air reservoir pressure — must reach 100–120 PSI before driving; check for audible air leaks

Test service brakes and parking brake operation

Test all lights — headlights, taillights, brake lights, turn signals, marker lights

Inspect belts and hoses for cracks, fraying, or leaks

Inspect battery terminals for corrosion and secure connections

Check windshield wipers and washer fluid

Inspect mirrors for proper adjustment and damage

Inspect undercarriage for fluid leaks, loose components, or damage