I have a 2020 Silverado 1500 Diesel Denali w around 9,000 miles. I recently filled the DEF and the sensor read “Poor DEF Quality” 70 miles to 55 mph Max. I used new DEF I bought on Amazon. Brought to Dealer, they say it’s probably a bad sensor, and it’s on back order for 1 month plus! So I’m out of Lease Payments + I have to rent a comparable truck for $5k a month. Is GMC doing anything for their customers on this? Basically a $90,000 truck that can’t move due to a faulty sensor. This is totally unfair, was about to get the wife the Yukon XL but this is making me boycott GMC (and telling everyone I know) for life. Any help out there is much appreciated.
