Key Fob Programming in Cambridge, MA

Why fobs act up in a Massachusetts winter

A key fob runs on a small coin-cell battery, and cold cuts its output. NOAA's climate summary puts January temperatures around 30 °F near the coast, so a fob that works in the kitchen can have weak range at a car that sat on the street overnight. Replace the battery before assuming the fob needs programming; many fobs that seem dead only need a new cell.

Moisture is the other problem. That summary also warns of nor'easters and tropical storms along the coast. A fob carried through wet snow in a coat pocket, or dropped in slush, can corrode at the battery contacts or on the circuit board. Let it dry fully before trying a new battery.

Street or garage

Where the car sits shapes a fob problem in Cambridge. Permit holders can move their cars into designated garages while a snow ban is in force, Green Street among them, so a winter fob problem can surface in a garage as easily as at the curb. In a garage, try the fob right beside the car before deciding it has failed. On a street, name the block and look for snow-emergency signs. Either way, give the exact spot in your request.

What to have ready

• Every fob you have, working or not. On some cars, programming a new fob erases the fobs that are not present, so keep them all on hand to be handled together.
• The date of the last battery change, and whether the fob got wet.
• Make, model, year and the VIN, from the registration or the plate at the base of the windshield.
• The new fob, if you bought one, and where it came from, since not every aftermarket fob works with every car.

The key fob programming page covers the service. If no working key or fob is left, car key replacement lists the ownership papers to gather. The Cambridge page has more on parking during a snow emergency.