10.0

really awful
Typical Repair Cost:
No data
Average Mileage:
18,250 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. not sure (1 reports)
2015 GMC Yukon engine problems

engine problem

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2015 GMC Yukon Owner Comments

problem #1

Dec 152015

Yukon Denali 6.2L

  • Automatic transmission
  • 18,213 miles

A D V E R T I S E M E N T S

Was about to merge into highway traffic that was going 70mph, all of a sudden I had a loss of power and vehicle would only go 30mph. I thought the transmission was failing. Dash board read "reduced engine power". This could have been a fatal accident if problem happened 10 seconds later in fast traffic. I was told by the dealer, the fix was a software update. I have asked for an explanation in writing as to the cause and the fix, so far nothing.

- Steve R., Cleveland, OH, US

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