Battery problems with Honda Civic

My Honda Civic 1.8 auto (2010) unexpectedly suffered a flat battery and the garage could find nothing wrong. Ten days later it happened again. The garage says it may be the alarm system which will cost £300 to replace. Any idea as what the problem might be?

Asked on 26 February 2015 by Hugh Read

Answered by Honest John
More likely to be the interior light dimmer switch. Try switching it off altogether. I had that problem with a Toyota and every Toyota and Honda rental car I ever hire comes with the interior light switched off.
Similar questions
why does the battery go flat if the key is left in the ignition even though the switch is in the off position?
My Ford Mondeo's battery is discharging when it's shut down and stationery. It is a new battery, but the car is nine years old, with 53,000 miles on the clock. Any advice?
The battery in my Peugeot 308CC was draining frequently, especially in cold weather. I replaced the battery seven months ago but it still goes flat after a week if the car isn't used. Peugeot dealer says...
Related models
Practical and comfortable cabin, huge amounts in interior space, great 2.2 i-CTDi diesel engine, well built and reliable, enjoyable to drive.
 

Ask Honest John

Value my car

Save £75 on Warranty using code HJ75

with MotorEasy

Get a warranty quote

Save 10% on GAP Insurance

Use HJ10 to save on an ALA policy

See offer