That your dealer will charge you $90 to "Diagnose" (plug a computer in and read out a code) that tells them to "update the battery" - if you're lucky. If you're unlucky, you need a new hybrid battery or something. If the car's driving fine, and getting reasonable milage, and you want to save yourself time and money, then just ignore it.
It means that there is a failure in the vehicle that will affect emissions.
The yellow exclamation point light on a Honda Accord is designed for the Vehicle Stability Assist system. It comes on when the vehicle is trying to maintain stability or when a tire is low.
On a 1994 Honda Accord, the brake lamp comes on when a tail light is no longer working. The burned-out bulb needs to be replaced. The brake lamp will not come on after the bulb is replaced.
It means the oil pressure is low, which could mean oil has leaked out, which could wreck the engine.
You need a new trany
Brake system-comes on briefly when activated or stays on if trouble like low fluid (or other) in system
The service code b124 on a 2006 Honda Accord means that you have turned off the vehicle stability assist system. If it comes on with the VSA indicator light it suggests that there is a problem with the system.
Maintenance required. Can mean it needs an oil/filter change or can mean something else. Refer to your owners manual scheduled maintenance guide to see what is needed.
The light comes on at a predetermined milage. Look in your owner's manual to see what service needs to be done at the displayed mileage. May just be an oil change, but may mean something else.
Oil change
The yellow radiator light on your Honda Accord is an indicator of low coolant in the radiator. The red radiator warning light is an indication of the engine overheating.
You do not specify what this red lamp looks like but redmeans STOP, so it is either the oil pressure light or coolant temperature.