2011 GMC Sierra 2500 exhaust system problems: nox sensor codes

Nox Sensor Codes

2011 GMC Sierra 2500

This problem may be covered under warranty. Ask your GMC dealer.

8.0

pretty bad
Typical Repair Cost:
No data
Average Mileage:
46,900 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. not sure (1 reports)
2011 GMC Sierra 2500 exhaust system problems

exhaust system problem

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2011 GMC Sierra 2500 Owner Comments

problem #1

Feb 052015

Sierra 2500 SLE 6.6L Diesel

  • Automatic transmission
  • 46,866 miles

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

I have several nox sensor codes and have had both sensors replaced on a truck with less then 50,000 miles on it. Any ideas on what keeps causing this?

- Chris M., Hackettstown, NJ, US

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