Final answer:
If you notice a vehicle defect, you should stop using the vehicle and have it repaired by a qualified mechanic.
Step-by-step explanation:
What to do if you notice a vehicle defect
If you notice a vehicle defect that may affect the safe operation of your vehicle, it is important to take immediate action to address the issue. The first step is to stop using the vehicle until the defect can be repaired. Next, you should contact a qualified mechanic or bring your vehicle to a reputable repair shop to have the defect diagnosed and fixed. Ignoring a vehicle defect can pose serious safety risks, so it's crucial to address any issues promptly.