I just did the MRC calibration on my 17 Z06, A8 with 10,000 km, at Wallace Chev in Milton, Ontario who performed the service so they are familiar now as I was their first customer. K19 suspension control module. It took a few hours as they have to get the download from GM. If you give them the vin in advance they can get the file ready and I expect it would be shorter. It has been one day as the car has to sit to temperature calibrate as well. I can only talk to the Tour setting thus far but it does feel more compliant and less float/bounce over some bumps. My car is lowerd on stock bolts and after 1 ride I think it is an improvement, not that I was unhappy before. I don't have much time on the new update but certainly feels nice and planted. Overall I recommend doing it but be prepared if your dealer is unfamiliar. Use the labour code OP 0602448 as customer does not pay for the labour GM does, you pay for the software download. Deal with Scott the service advisor a good car guy with great customer service. Overall Wallace was a good experiece and I recommend them for service. I got most of the details from the US forum but thought I would add my Toronto side to help out the locals.
- Show all