Q: Replace key battery message on Mercedes won't go off

asked by on

I've replaced the batteries on both of the keys to my Mercedes C220 but the warning message won't go off. Any ideas?

My car has 20000 miles.
My car has an automatic transmission.

It is possible that the key fob battery warning light has to be reset manually and does not go off automatically when the batteries are replaced. I would recommend looking through your owners manual to see if there is a reset procedure for this particular warning light. If there is not reset procedure, I would recommend contacting your local Mercedes Benz dealer as they will likely have any tools required to reset the light. It is also possible that the key fob itself has a malfunction that is causing the light to come on. I would recommend having this issue inspected by a qualified professional.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Replace key battery message on Mercedes won't go off

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Does 2007 Mercedes E350 have spark plug wires?

Hi there. This video would actually be very good for you to watch to see how this system is assembled on the BMW E250 and how to change the spark plugs.

Q: I have a restraint system malfunction visit workshop message popping up on my mercedes c class 2011, I jump started a car with my

The dead battery may have caused the fault or faults, to be set. Has the battery been replaced ? If so and the system is ok, then the fault may clear itself after a couple of ignition cycles - starting,...

Q: did a engine flush on a 2015 3.6L dodge charger. after having the engine flushed the check engine light came on with a cylinder #6

Hi Darryll. Thanks for submitting your question today. It's rather unlikely that the coolant flush itself is causing the misfire. However, if during the coolant flush an ignition system component or even a fuel injector harness was accidentally moved, this...

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.