Any "fault" message which is recorded in the log is not normal. Something is causing the car to detect a fault, albeit briefly. A diagnostic check should reveal the cause, but of course Pug dealers charge for this service, and then offset the cost from any work found necessary.
Speak to the service manager of your chosen dealership & ask if he has any ideas regarding this issue.
Indie car electrical workshops should also be capeable of detecting the issue, and may possibly prove cheaper, providing they are reliable and don't suggest replacing several components one by one in the hope of randomly finding the actual cause. (This has happened to me with previous cars). If this does happen, it often proves more expensive than a trip to the main dealers, who might be more likely to discover the true cause from the start.
The other course of action would be to simply ignore it. If there was an actual fault with a component, the fault message wouldn't simply disappear after a few seconds. But if it was my car, I would want to rectify the cause of even a temporary fault message, especially when it involved a very important safety feature of the car.
