Quarterly Vehicle Maintenance Check

Created by Cheli

A step‑by‑step guide to inspect and maintain a vehicle every three months.

24 Items

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Published May 17, 2026

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Checklist Items (24)

Inspect Tires

Check tread depth, sidewall damage, and pressure.

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Measure tread depth

Use a tread depth gauge; replace tires if less than 2 mm.

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Check sidewall for cracks

Look for cuts, bulges, or punctures; note any irregularities.

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Verify pressure

Use a calibrated gauge; inflate to the spec on the driver’s door jamb.

Examine Fluids

Ensure all essential fluids are at proper levels and clean.

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Engine oil level

Pull the dipstick, wipe, re‑insert, and read; top up if below the max mark.

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Coolant concentration

Check the reservoir; maintain a 50/50 mix of antifreeze and water.

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Brake fluid

Inspect the level in the master cylinder; replace if cloudy.

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Transmission fluid (if applicable)

Verify level with the dipstick while engine warm; add recommended fluid if low.

Test Battery

Check charge and terminal condition.

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Measure voltage

Use a multimeter; a healthy 12‑V battery reads 12.6 V at rest.

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Inspect terminals

Look for corrosion; clean with a brush and apply dielectric grease.

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Check hold‑down clamp

Ensure the battery is secured to prevent movement.

Evaluate Brakes

Assess pad wear and rotor condition.

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Measure pad thickness

Pads should be at least 3 mm; replace if thinner.

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Inspect rotors for scoring

Look for deep grooves or rust; machine or replace as needed.

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Test brake pedal feel

Pedal should be firm with no sponginess; investigate if soft.

Check Lighting System

Verify all exterior and interior lights function correctly.

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Headlights and high beams

Turn on each level; replace bulbs that appear dim or burnt out.

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Turn signals and hazard lights

Activate left, right, and hazard; confirm all lenses flash.

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Brake and reverse lights

Press the brake and shift to reverse; ensure illumination.

Refresh Interior

Clean and inspect cabin components.

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Vacuum seats and floor

Remove debris and pet hair; use crevice tools for tight spots.

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Wipe dashboard and controls

Use a non‑abrasive cleaner; avoid excess moisture near electronics.

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Test HVAC operation

Cycle heating, cooling, and defrost; listen for unusual noises.

Inspect Exterior

Look for damage and clean surfaces.

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Wash and dry body

Use car‑wash soap and microfiber towels; dry to prevent water spots.

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Check for paint chips or rust

Touch up any imperfections to prevent corrosion.

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Inspect windshield wipers

Raise arms, examine rubber; replace if streaking occurs.

Verify Documentation

Ensure all required paperwork is current.

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Confirm registration and stickers

Check expiration dates; renew if needed.

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Review insurance policy

Make sure coverage is active and documents are in the glove box.

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