Preserve the warning before it becomes a vague memory
Write down the displayed text and any value with its unit, if they are already available. Note when the message appeared and what the vehicle was doing at that time. Identify the wheel position exactly as the system reports it rather than translating it into a guess.
Do not clear the warning, reset the system or make a test journey to see whether it returns. Follow the instructions for the actual fitted equipment. Where pressure loss or tyre damage may be involved, qualified personnel must assess safe movement before a workshop journey.
Describe the change in work
Explain the earlier duties and what is different now: the known load, type of trips or equipment carried. Use existing records where possible. If the actual load is unknown, do not turn a usual estimate into a measured weight.
Put the change of work and the warning on separate dated lines. They may have happened close together; recording both does not prove a connection. Add any documented tyre work at the reported position so the person assessing the warning can ask the relevant follow-up questions.
- Work changed: date, the known difference and the record supporting it.
- Warning appeared: date, original message, reported position and any displayed value with its unit.
- Earlier tyre work: job date and affected position, if documented.
- Information missing: fields that need confirmation from the driver or vehicle records.
Ask for the applicable pressure information
MICHELIN links suitable tyre pressure to load and conditions of use and directs operators to the relevant manufacturer guidance. A value copied from another truck is not an adequate reference for this vehicle.
Ask which vehicle and tyre data are needed to establish the applicable guidance. A TPMS reading records what the system reports; it is not permission to choose a new pressure. If a tyre has run underinflated, it needs qualified inspection before reinflation is considered.
Sources: MICHELIN: truck tyre pressure
Keep the response with the vehicle record
Record what was assessed and what follow-up was agreed. If another driver takes over, pass on the unresolved warning and the contact handling it. Do not mark the issue as completed simply because the warning was absent during a later glance at the display.
Contact the workshop with the existing warning and use history, then agree the assessment and safe arrival arrangements before travelling.
Call the workshop