2015 Yukon XL Denali with 62,000 mostly highway miles. Message came on recently stating "service driver assist". Dealer charged me $210 to determine cause and told me it was 2 things causing this. One was a front bumper sensor ($866.19 to replace because bumper needs to be removed), and the other was the Haptic seat motor ($503.25 to replace). Oh, and $90 to paint the new sensor.
Does anyone have any experience with this. Everything works fine, it's just that the message has to be turned off every time I start the truck. Not a big deal but when I trade or sell someone will want to know what is causing this.
it was 2 things causing this ---> This is rarely the case. What are the chances TWO related parts went out at the same time? This is clueless, lazy diagnosis.
"service driver assist". ---> This comes up for 100X different reasons. Without proper dianosis, you will be paying for a parts cannon.
You paid $210 for someone to guess at what is wrong. Find some younger, independent guy who knows electronic diagnosis. And then take those results back to the dealer and get your $210 back.
Without seeing the vehicle I am going to guess that the haptic motor will NOT engage if a sensor is out.
This is why I refuse to buy a new vehicle. Damn dealers.