2010 GMC Sierra Denali Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2010 GMC Sierra Denali
Verified by mechanics, reported by drivers like you
2010 GMC Sierra Denali ProblemsContamination of extended life coolant
The fuel pump may fail causing the engine to stall and not restart.
Our technicians highly recommend that the transmission is serviced every 30,000 miles to avoid problems and maintain optimal operating order.