When I bought my Prelude, I briefly considered the Type-SH. Drove it, but couldn't justify the $3500 sticker price difference (my base was $23,500 and the Type-SH was almost $27,000!!!)

However, I do understand how it works, and it's a good system. I just don't do much track or intentional performance driving.

ATTS uses a combination of electronic sensors and hydraulic pressure to transfer torque from the wheel with the most to the wheel with the least. It's not traction control (as some people have often thought). It does eliminate the yaw shift and understeer that is inherent with a nose heavy front engine/front wheel drive setup.


bAmBiNo10, if you have just purchased your Type-SH, I recomend you do not delay in having the ATTS system flushed and refilled. It is not unlike an automatic transmission with a - you guessed it - torque converter. I believe Honda recomends the system be flushed and refilled every 30k. Also, if you have a flat front tire, never put the spare on the drive wheels. That can cause the ATTS light to illuminate, and send the ATTS computer in to a frizzy. Transfer a wheel from the back and put the doughnut on the back.