Q: The dashboard light on my 2021 Subaru Outback suggested that the key fob battery was low. So I changed it. But I must have damaged the plastic case in the process. The key won’t hold in place, but the fob works fine. Because the key and electronics of the fob are fine, can I use a replacement fob and simply insert the electronics and key from the damaged fob?
A: Absolutely. You can find empty replacement cases online and at auto parts stores and locksmiths. If you are unsure about doing it yourself, a locksmith can make the swap.
Confused compass
Q: I have a 2012 Acura TL with 96,000 miles. When I start the car, the compass display is flashing “calibrate.” On a rare occasion, the compass system will sense the correct direction. I followed the owner’s manual calibration instructions and had limited success. My wife’s 2013 Acura RDX has never had a compass calibration notice displayed. What is going on with my car?
A: The culprit likely is the compass module. It can be replaced, but if you have a smartphone or GPS device, you may want to simply disconnect it and use that.
Mystery noise
Q: I heard a rattle in the front end of my 2016 Toyota Corolla. It was due for a checkup at the dealership, so I told them about the rattle. After they finished, they told me that the part that holds the battery in place was loose. So, they tightened it. The dealership is the one that put the battery in two years ago. In my 45-plus years of driving I have never encountered this before. Is it unusual for the bracket to loosen up?
A: This is a new one for me. Maybe the shop fixed something else and, rather than go into a long explanation, brushed it off by claiming a loose battery bolt. Or maybe somebody was trying to steal your battery, but you showed up and they ran off, leaving the clamp dangling. Whatever the cause, I wouldn’t worry about it if you don’t hear the noise again.
Bob Weber is a writer, mechanic and ASE-certified Master Automobile Technician. His writing has appeared in automotive trade publications, Consumer Guide and Consumers Digest. Send automotive questions along with name and town to motormouth.tribune@gmail.com.
