7 complaints reported

2015 GMC Sierra 2500 FUEL/PROPULSION SYSTEM

Owner-reported problems and safety issues filed with NHTSA. Review common failures, severity levels, and complaint trends over time.

Reports
7
Crashes
0
Fires
0
Injuries
0

Complaint Timeline

Chronological view of owner reports

Nov 2023

Truck has a CP4 injection pump and they go bad and cost $15,000-$20,000 to repair and if that happens I owe money on the truck and would have to get a loan or figure something out and still have to make a payment on something I can’t even drive! They need to recall it and swap them out to a CP3 and be done with it. Why wait until it cost 10s of thousands of dollars when they can get it done for $3,500 at the most?

Type: Vehicle, Vehicle: 2015 GMC SIERRA 2500, Manufacturer: General Motors, LLC
Incident: Nov 2023
Aug 2022

While driving to work with my workers and I on HWY going 70 mph pickup just turned off on me and no longer started up. Took to Mechanic and said it was the Bosch CP4 failure. Metal debris flooded our entire high-pressure fuel system. Had to get replacement of fuel lines, fuel rails, pump and injectors and the removal/flushing of the fuel tank. Our total repair is over $12,000. which we don't have. Mechanic just finished repairing it after 11 month's but we don't have the $ to get it out from shop.

Type: Vehicle, Vehicle: 2015 GMC SIERRA 2500, Manufacturer: General Motors, LLC
Incident: Sep 2021
Oct 2021

2015 GMC SIERRA 2500 DURAMAX DRIVING EAST WITH THE FLOW OF TRAFFIC ON 80 REACHING THE SUMMIT TOWARDS TAHOE. WE SUDDENLY EXPERIENCE AT "CHANGE FUEL FILTER" WARNING WHICH ONLY LASTED APPROXIMATELY 20 SECONDS BEFORE THE MESSAGE THEN READ "DERATING". UPON THIS SECOND NOTIFICATION WE IMMEDIATELY LOST POWER TO THE ENGINE WHICH RESULTED IN REDUCED BRAKING CAPABILITY AND STEERING AT LITERALLY THE TOP OF THE MOUNTAIN. WE WERE TRAVELING IN SNOWY CONDITIONS WITH MANY SEMI TRUCKS AROUND US. WE TRIED TO SAFELY DRIFT TO THE SHOULDER TO THE SAFEST POSSIBLE PLACE. THE SUDDEN LACK OF POWER LEFT MY FAMILY, INCLUDING 3 CHILDREN, IN A VERY DANGEROUS POSITION. WE ENDED UP BEING STRANDED WITH TOW TRUCKS BEING VERY SCARCE AND CHALLENGING TO FIND. THE NEAREST RENTAL CAR TOOK 2 HOURS TO GET TO, AND WE HAD TO SHUFFLE KIDS ALL OVER. ONE CHILD WAS CRYING AND SCARED TO DEATH AT ALL THE CARS ZOOMING BY AND OUR INABILITY TO MOVE. IT APPEARS THAT THE CP4 FUEL PUMP MAY HAVE FAILED LEAVING US ALMOST INSTANTANEOUSLY IN AN UNSAFE SITUATION.

Type: Vehicle, Vehicle: 2015 GMC SIERRA 2500, Manufacturer: General Motors, LLC
Incident: May 2021
Aug 2021

While exiting off ramp of the interstate my truck just completely shut down. After several towing bills to different mechanics to verify the problem, it was the cp4 pump system ! Over $13000 in repairs , towing , and rental fees

Type: Vehicle, Vehicle: 2015 GMC SIERRA 2500, Manufacturer: General Motors, LLC
Incident: May 2021
Apr 2021

DRIVING DOWN THE INTERSTATE AND MY CHANGE FUEL FILTER LIGHT CAME , AND WITHIN 20 MINUTES TRUCK WENT INTO LIMP MODE. PULLED OVER AND CHANGED FUEL FILTER BUT DIDN'T FIX THE ISSUE. TRUCK IS CURRENTLY AT DEALERSHIP WAITING TO FIND OUT DIAGNOSIS

Type: Vehicle, Vehicle: 2015 GMC SIERRA 2500, Manufacturer: General Motors, LLC
Incident: Apr 2021
Aug 2019

THE CP4 FUEL PUMP IMPLODED AND SENT METAL SHARDS THROUGH MY VEHICLES ENTIRE FUEL SYSTEM

Type: Vehicle, Vehicle: 2015 GMC SIERRA 2500, Manufacturer: General Motors, LLC
Incident: Jul 2019
Jun 2017

MY VEHICLE'S ENGINE STOPPED RUNNING WHILE I WAS DRIVING ON A VERY BUSY ROAD. I LOST POWER STEERING, POWER BRAKES, EVERYTHING. OTHER MOTORISTS WERE SWERVING TO AVOID ME. I HAD THE TRUCK TOWED TO A GM DEALER, AND THEY DIAGNOSED THE PROBLEM AS THE FUEL INJECTOR PUMP. I RESEARCHED THIS ONLINE, AND FOUND THAT THIS IS A COMMON ISSUE! THIS SHOULD BE A MAJOR SAFETY CONCERN SINCE IT'S CAUSING VEHICLES TO SIMPLY STOP RUNNING AT ANY GIVEN SPEED ON ANY GIVEN HIGHWAY!

Type: Vehicle, Vehicle: 2015 GMC SIERRA 2500, Manufacturer: General Motors, LLC
Incident: May 2017

Trend Over Time

Complaints by year

Quick Summary

The 2015 GMC Sierra 2500 has 7 FUEL/PROPULSION SYSTEM complaints on file. Review the timeline above for detailed owner experiences.