- Owner
- Shop Manager
- Effective date
- September 15, 2026
- Review cycle
- Every 12 months
1.Purpose
To make sure tires are rotated in the correct pattern, lug nuts are torqued to specification, and tread wear or damage is caught before it becomes a safety issue.
2.Scope
Applies to routine tire rotation and tire replacement on passenger vehicles and light trucks. Full wheel alignment is covered by a separate service.
Definitions
- Rotation pattern
- The manufacturer-recommended order for moving tires between positions, which varies by drivetrain and tire type.
- Tread depth
- The measured depth of a tire's tread grooves, used to judge remaining tire life and safety.
- Star pattern
- A crisscross tightening sequence for lug nuts that seats the wheel evenly.
3.Responsibilities
- Technician
- Performs the rotation or tire change, inspects tread and brakes, and torques lug nuts to specification.
- Service Advisor
- Communicates tire wear findings and any replacement recommendation to the customer.
- Shop Manager
- Confirms torque spec accuracy and resolves any comeback related to wheel or lug issues.
RACI matrix
| Activity | Technician | Service Advisor | Shop Manager |
|---|---|---|---|
| Confirm rotation pattern and torque spec | R/A | C | I |
| Inspect tread depth and tire condition | R/A | I | I |
| Rotate or replace tires | R/A | - | I |
| Torque lug nuts to specification | R/A | - | I |
| Communicate findings to the customer | C | R/A | I |
R = Responsible, A = Accountable, C = Consulted, I = Informed
4.Materials and PPE
Materials, tools and systems
- โShop management system with rotation pattern and torque specs
- โTorque wrench
- โTire tread depth gauge
- โTire pressure gauge and inflation equipment
- โImpact wrench for wheel removal
Personal protective equipment
- โSafety glasses
- โGloves
5.Procedure
- 5.1
Confirm the rotation pattern
TechnicianLook up the manufacturer's recommended rotation pattern for the vehicle's drivetrain and tire type in the shop management system.
- 5.2
Confirm lug nut torque specification
TechnicianCheck the manufacturer's torque specification for the wheel's lug nuts before removing any wheel.
- 5.3
Raise the vehicle on the lift
TechnicianRaise the vehicle on the lift at the manufacturer's designated lift points, following the shop's vehicle lift safety procedure.
- 5.4
Remove the wheels
TechnicianLoosen and remove the lug nuts, then remove each wheel and set it aside in its noted position.
- 5.5
Inspect tread depth and wear pattern
TechnicianMeasure tread depth at several points on each tire and check for uneven wear, cracking or embedded debris.
Checkpoint: Tread depth is measured and recorded for every tire before deciding to rotate or recommend replacement.
- 5.6
Visually inspect brakes with wheels off
TechnicianWith the wheels removed, visually check brake pad thickness, rotor condition and look for any fluid leak.
- 5.7
Rotate or replace tires
TechnicianMove each tire to its position in the rotation pattern, or mount new tires if replacement was approved by the customer.
- 5.8
Set tires to specified pressure
TechnicianInflate each tire to the pressure listed on the vehicle's door jamb placard, not the number molded on the tire's sidewall.
- 5.9
Hand-tighten lug nuts in a star pattern
TechnicianReinstall lug nuts and hand-tighten them in a star pattern to seat the wheel evenly before final torquing.
- 5.10
Lower the vehicle
TechnicianLower the vehicle until the tires just touch the ground before final torquing, following the lift's operating procedure.
- 5.11
Torque lug nuts to specification
TechnicianFully lower the vehicle and torque each lug nut to the manufacturer's specification using a torque wrench in a star pattern.
Warning: Never rely on an impact wrench alone for final tightness; always confirm with a calibrated torque wrench.
- 5.12
Recheck torque after a short drive
TechnicianRecommend the customer return, or check in-house, for a lug nut torque recheck after the first 50 to 100 miles on newly mounted wheels.
Checkpoint: Lug nut retorque is recommended or performed after the manufacturer's break-in mileage for newly mounted wheels.
- 5.13
Record findings and recommendations
TechnicianRecord tread depth, pressure set and any brake or tire recommendation in the shop management system for the service advisor.
- 5.14
Road test the vehicle
TechnicianTake the vehicle for a short road test to check for vibration, pulling or noise before returning it to the customer.
6.Quality checks
- โTread depth is measured and recorded for every tire on every rotation.
- โLug nuts are torqued to specification with a calibrated torque wrench, not just an impact wrench.
- โTire pressure matches the vehicle's door jamb placard, not the tire sidewall.
- โA retorque recheck is recommended for any newly mounted wheel.
7.Records
- โTread depth and inspection log
- โRotation pattern and torque spec reference
- โCustomer recommendation notes
- โRetorque recheck reminder
8.KPIs
- โAverage time per tire rotation
- โComeback rate for loose or noisy wheels
- โPercentage of services with tread depth recorded
- โTire replacement recommendation acceptance rate
9.Common mistakes
- โSkipping the torque wrench step and leaving lug nuts at impact wrench tightness only.
- โInflating tires to the pressure on the sidewall instead of the door jamb placard.
- โNot recording tread depth, missing an early warning sign of uneven wear.
- โForgetting to recommend a retorque recheck after mounting new wheels.
10.Revision history
| Revision | Date | Description | Reviewed by |
|---|---|---|---|
| 1.0 | September 15, 2026 | Initial release | Ilia Pirozhenko |
This is a template. Adapt it to your organization, equipment and local regulations before use.