Your indicator stalk and switch in the steering column need replacing.
Or you can try what I did and has worked for one or two others, get some electrical contact cleaning spray and give the switch a squirt.
This is a VERY DANGEROUS FAULT.
I was about to overtake someone and indicated to pull out unaware that I was signalling the opposite. The guy behind me took the opportunity he thought was being offered and got a BIG surprise when 2.5 tons of Colorado Red pulled out unexpectedly!
Luckily the road was wide enough for all three of us.
It was only a few miles later I realised WTF was going on!
So you need to be 110% certain by watching your mirror repeater that you are sending the indicator signal you want BEFORE manoeuvring!
Or you can try what I did and has worked for one or two others, get some electrical contact cleaning spray and give the switch a squirt.
This is a VERY DANGEROUS FAULT.
I was about to overtake someone and indicated to pull out unaware that I was signalling the opposite. The guy behind me took the opportunity he thought was being offered and got a BIG surprise when 2.5 tons of Colorado Red pulled out unexpectedly!
Luckily the road was wide enough for all three of us.
It was only a few miles later I realised WTF was going on!
So you need to be 110% certain by watching your mirror repeater that you are sending the indicator signal you want BEFORE manoeuvring!