Automotive Service Technician how-to
How to Torque Lug Nuts Correctly
Improper lug nut torque can warp rotors or let a wheel come loose.
Quick answer
Improper lug nut torque can warp rotors or let a wheel come loose. In short: look; start; snug, then complete the remaining steps below.
Step by step
Look up the vehicle’s lug nut torque specification.
Start each lug nut by hand to avoid cross-threading.
Snug nuts in a star pattern with the wheel just touching the ground.
Lower the vehicle so the tire bears weight.
Torque each nut to specification in a star pattern with a calibrated torque wrench.
Recommend a re-torque check per shop policy, especially on aluminum wheels.
Safety reminders for automotive service technicians
- Use lift points correctly and stands under lifted vehicles
- Follow high-voltage safety procedures on hybrids and EVs
- Wear eye protection and gloves around fluids and batteries
- Ventilate exhaust and never run engines in closed spaces
Key terms
OBD-II · DTC · Scan tool · Freeze frame · Misfire · Caliper: see the full automotive service technician glossary.