We have been waiting since 1/9/17 for the skipping/hesitation fix to tell if it's tied to the other two problems (booming and vibration). We brought our vehicle to,the dealer 3/20/17 and the field engineer was supposed to be there to repair all of our concerns. GM did not send a field engineer and the dealer only performed the computer reprogramming. Guess what? We still have the skipping and hesitation. My wife and I have had enough of this vehicle and GM. We looked at the 2018's online and to no surprise there is no change, except adding more gears to the transmission. GM has been stringing us along telling us they will help us since November 2016. I think that this is unacceptable customer service. It's time that GM listens to its customers and not the bean counters. We as customers make GM what it is today. SAD!!
We have always had Tahoes and Yukons. What other manufacturers would you recommend? We don't need a third row. We have looked at several vehicles. My wife likes the BMW X5.
We're vehicle shopping now..we need a third row. It's a shame that these vehicles are but like crap.
We're looking at Infiniti QX80, the Volvo XC90, the Lexus GX and LX, the Nissan Armada, but what we're really holding out for is the new Range Rover Discovery to be reals ed in May/June. Saw it at car show and it was stunning. Starting price of $48k.
As I've said ..GM replaced the 22s with 20s. Replaced the tired to Michelins. My dealer handled it all since Consumer Affairs kept telling no, no, no, no. 62 days in service...they want a lemon law case.
Anyways. The tires and rims fixed the vibration and buffeting.
They replaced the exhaust and added the dampers, but the booming is not really fixed. It not as loud...but it is more constant.
The foreman at the dealership said that the 2017 does indeed, without a doubt have a new exhaust for the 6.2L.
Problem is when he tried to order for a 2016, GM ships him the old exhaust. He says this will continues until they clear the warehouse of the old exhaust. We're currently working on acquiring the new exhaust.
In the mean time...There's a new metal buzzing coming from under the passenger side. It sounds like it's coming from the A/C, but non of the A/C components are making the noise. But if you shut off the A/C it stops. So it seems that the A/C compressor is making something different vibrate.
We have 4 kids, and as much as we want a 3 row SUV with the Yukon XL storage space, we're moments away from a lemon law and going back to a minivan.