Q. I have noticed lately that there are people who are driving without headlights or taillights during rainstorms and at dusk. Why does this seem so common, and what can be done about it?
A. One of the biggest misunderstandings among drivers is that headlights are not just for helping you see, they are also for helping others see you. Many motorists assume that if they can see the road, they do not need their lights on. Daytime running lights add to the confusion because they often illuminate the front of the vehicle but not the rear lights. Most states have laws requiring headlights when windshield wipers are in use or visibility is reduced. Newer vehicles increasingly feature wiper-activated headlights, but millions of older vehicles remain on the road. Public education campaigns and roadway message boards reminding drivers to turn on their headlights can go a long way toward improving safety.
Q. Have you tried using AI chatbots to answer car questions, and how accurate are they compared with an experienced technician?
A. AI can be surprisingly good when explaining automotive theory and helping organize information, but it still has limitations. I have compared AI-generated answers with my own and found that the better the question and the more background knowledge the user has, the better the results tend to be. AI often generalizes information and can miss vehicle-specific details such as recalls, service bulletins or exact component locations. It can be useful as a research tool, but I would not rely on it alone for diagnosing a complicated repair without verifying the information.
Q. My car had body damage repaired, and now the shop says the vehicle needs calibration. Is this really necessary?
A. Absolutely. Modern vehicles rely on cameras, radar sensors and other electronic devices that support advanced driver assistance systems such as lane-keeping assistance, adaptive cruise control and collision warning systems. When body repairs involve removing or repositioning these components, recalibration is often required to ensure they function properly. Many dealerships perform these calibrations, and some body shops have their own equipment or contract with mobile specialists. If the repairs were covered by insurance, the calibration should generally be included in the repair estimate.
Q. I have a 2004 Ford Ranger that occasionally starts and then stalls after sitting for 30 to 45 minutes. It only happens a few times a year. What could be causing it?
A. Intermittent problems are among the most difficult to diagnose because they rarely occur when the vehicle is in the shop. Based on your description, I would consider a failing crankshaft position sensor, a sticking idle air control valve, a weak fuel pump or another heat-related electrical issue. Since the problem appears after the engine has been driven and then allowed to sit briefly, testing the vehicle during this exact condition is important. Fuel pressure testing and a review of sensor operation during a hot restart would be my starting points.
Q. I heard you discussing the Hyundai Santa Cruz. Is it really a good choice for someone who has never owned a truck?
A. The Hyundai Santa Cruz fills a unique niche. It drives and feels much like a compact SUV but offers the flexibility of a pickup bed. While the bed is not large enough for serious hauling, it works very well for home improvement projects, bicycles, gardening supplies and other everyday cargo. There is also a lockable storage compartment beneath the bed floor that adds additional utility. Combined with Hyundai’s strong warranty coverage, it is an excellent choice for people who occasionally need a truck without wanting to drive a traditional pickup every day.
Q. Our 2022 GMC Terrain briefly displayed a flashing check engine light while passing another vehicle, then the light went away and has not returned. Should I be concerned?
A. A flashing check engine light generally indicates an engine misfire, which can potentially damage the catalytic converter if ignored. Even though the light went out and the vehicle has been operating normally since, I would still have the system scanned for stored diagnostic trouble codes. GMC has issued technical information regarding spark plug issues on some vehicles, and an intermittent ignition problem is possible. It may have been a one-time event, but it is worth checking before it becomes a larger problem.
Q. My 2019 Mercedes-Benz A220 has only 22,500 miles and is driven about 3,000 miles per year. Do I really need the expensive Service B, new tires, and a battery?
A. Mercedes service schedules are based on both time and mileage, so even low-mileage vehicles still require maintenance. At seven years old, the battery may be nearing the end of its service life, and the tires should be carefully evaluated for age-related deterioration, not just tread depth. Service B includes a variety of inspections and maintenance items beyond an oil change. Given that the vehicle still has substantial value and relatively low mileage, investing in proper maintenance is likely worthwhile if you plan to keep and enjoy the car for several more years.
Q. My well-maintained 2012 BMW X3 suddenly produced a cloud of white smoke for a brief moment and has been fine ever since. What should I do?
A. White smoke is often associated with coolant entering the combustion chamber, but a single occurrence does not automatically indicate a major problem. If the vehicle sat for an extended period, condensation in the exhaust system could produce temporary white vapor. Because the problem has not reoccurred and there are no warning lights, I would simply monitor the situation. Check coolant and oil levels periodically and watch for any changes. If the smoke returns or fluid levels drop, a more thorough inspection of the cooling system and engine would be warranted.
Last updated on August 5, 2026 by AAA Staff
Based in Rhode Island, Jillian Young is AAA Northeast’s director of public relations. She regularly appears in local TV, radio and print media to discuss traffic safety, travel, insurance and more.
