2020 Gmc SIERRA 2500

Problems, Recalls & Reliability Report

Below Average

Quick Summary

The 2020 Gmc SIERRA 2500 has 106 owner complaints filed with NHTSA — that's 1.3x the segment average of 80. The most common issue is transmission problems (21% of all complaints), specifically: there is an issue that is causing the batteries to die. this in return causes the vehicle to go into limp home mode with no warning. the "issue" was supposed to be resolved by the dealer in march 2022. the resolution was that one battery was bad. the vehicle is equipped with two batteries. each of w. ⚠️ 6 fire reports filed.

6 fire reports

106

Total Complaints

Recalls Issued

—/5

Safety Stars

1.3x

vs Segment Avg

Known Problems

TRANSMISSION

22 complaints

21%

• There is an issue that is causing the batteries to die. This in return causes the Vehicle to go into Limp home mode with no warning. The "issue" was supposed to be resolved by the Dealer in March 2022. The resolution was that one battery was bad. The vehicle is equipped with two batteries. Each of w
• The contact owns a 2020 GMC Sierra 2500. The contact stated while driving approximately 65 MPH, the vehicle lost motive power. The contact stated that he had not depressed the brake pedal. The contact was towing a 20-foot flatbed trailer with a load of lumber of approximately 4,000 lbs. in weight. T
• The contact owns a 2020 GMC Sierra 2500. The contact received notification of NHTSA Campaign Number: 24V797000 (Power Train); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer

Typical onset: 50K miles Est. repair: $500

“There is an issue that is causing the batteries to die. This in return causes the Vehicle to go into Limp home mode with no warning. The "issue" was supposed to be resolved by the Dealer in March 2022. The resolution was that one battery was bad. The vehicle is equipped with two batteries. Each of w”

— NHTSA complaint filing

OTHER

18 complaints

17%

• TL* THE CONTACT OWNS A 2020 GMC SIERRA 2500. WHILE DRIVING 5 MPH, THE BRAKES ENGAGED AUTOMATICALLY AND THE TRACTION CONTROL WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN SEVERAL TIMES TO CARL BLACK CHEVROLET BUICK GMC (LOCATED AT 1110 ROBERTS BOULEVARD NORTHWEST, KENNESAW, GA 30144, (888) 457
• THE FRONT PARK ASSIST SENSORS ON THIS TRUCK DO NOT OPERATE AS INTENDED, OR AS ON PRIOR YEARS OR AS ON OTHER VEHICLES. THE SENSORS DID NOT PICK UP PARKING BOLLARDS IN FRONT OF A CONVENIENCE STORE AND RESULTED IN A MINOR DING THAT COST OVER $1300 TO REPAIR. WHEN BUMPER WAS REPAIRED THE SERVICE PERS
• PART #19419266 TONNEAU WAS INSTALLED 07/16/2020 AND LEAKS TERRIBLE IN THE RAIN

Typical onset: 50K miles Est. repair: $500

“TL* THE CONTACT OWNS A 2020 GMC SIERRA 2500. WHILE DRIVING 5 MPH, THE BRAKES ENGAGED AUTOMATICALLY AND THE TRACTION CONTROL WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN SEVERAL TIMES TO CARL BLACK CHEVROLET BUICK GMC (LOCATED AT 1110 ROBERTS BOULEVARD NORTHWEST, KENNESAW, GA 30144, (888) 457”

— NHTSA complaint filing

BRAKES

12 complaints

11%

• TL* THE CONTACT OWNS A 2020 GMC SIERRA 2500. WHILE DRIVING 5 MPH, THE BRAKES ENGAGED AUTOMATICALLY AND THE TRACTION CONTROL WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN SEVERAL TIMES TO CARL BLACK CHEVROLET BUICK GMC (LOCATED AT 1110 ROBERTS BOULEVARD NORTHWEST, KENNESAW, GA 30144, (888) 457
• TL* THE CONTACT OWNS A 2020 GMC SIERRA 2500. THE CONTACT STATED THAT WHILE DRIVING AND TOWING A TRAILER, SHE DISCOVERED THAT THE BRAKES WERE OVERHEATING. THERE WAS A STRONG BURNING HOT ODOR COMING FROM THE BRAKES. THE CONTACT PULLED OVER AND DISCOVERED ALL FOUR BRAKE ROTORS WERE EXTREMELY HOT. THE C
• MY BRAKES ARE SQUEAKING VERY LOUDLY THEY HAVE BEEN SINCE AUGUST. I WAS DRIVING DOWN THE ROAD ON US1 AND PREPARED TO STOP TO MAKE A TURN AND MY TRUCK WOULD NOT STOP. I WAS MAKING A RIGHT TURN AND ENDED UP IN THE OTHER LANE OF ONCOMING TRAFFIC SIDEWAYS BECAUSE I TRIED TO TURN MY TRUCK TO SLOW IT DOWN.

Typical onset: 50K miles Est. repair: $500

— NHTSA complaint filing

ELECTRICAL

12 complaints

11%

• 2020 GMC SIERRA DENALI DURAMAX 3000 MILES TRIED TURNING ON TRUCK THIS MORNING TO GO TO WORK AND WOULD NOT EVEN CRANK IT IS A PUSH START OPTION HAVE NO CLUE ON HOW IM GOING TO TAKE IT TO THE DEALERSHIP IF I CANT GET IT OF PARK INTO NEUTRAL FOR A TOW TRUCK AT LEAST ! TRUCK DOES NOT CRANK IT THROWS M
• AS I WAS DRIVING HOME MY CHECK ENGINE LIGHT CAME ON AND ALL OF MY LIGHTS WENT OUT. I HAD NO TAIL LIGHTS AND THE RADIO STARTED SAYING NO SIGNAL DETECTED. THE DASH SCREEN WAS SAYING SERVICE KEYLESS ENTRY SYSTEM. AND I HAD NO RUNNING LIGHTS BUT MY HEADLIGHTS. PRETTY SCARY THINKING NO ONE COULD SEE ME
• WENT OUT TO MY VEHICLE THAT HAS BEEN SITTING IN MY DRIVEWAY FOR 24 HOURS AND ATTEMPTED TO UNLOCK IT WITH THE KEY FOB. NOTHING. TRIED THE OTHER FOB. NOTHING. USED THE KEY TO UNLOCK THE DOOR AND GET IN TO PUSH BUTTON START AND NOTHING. I PLUGGED BOTH BATTERIES INTO CHARGERS AND THEY WOULD START TO

Typical onset: 50K miles Est. repair: $500🔥 2 fire reports

“2020 GMC SIERRA DENALI DURAMAX 3000 MILES TRIED TURNING ON TRUCK THIS MORNING TO GO TO WORK AND WOULD NOT EVEN CRANK IT IS A PUSH START OPTION HAVE NO CLUE ON HOW IM GOING TO TAKE IT TO THE DEALERSHIP IF I CANT GET IT OF PARK INTO NEUTRAL FOR A TOW TRUCK AT LEAST ! TRUCK DOES NOT CRANK IT THROWS M”

— NHTSA complaint filing

ENGINE

11 complaints

10%

• TL* THE CONTACT OWNS A 2020 GMC SIERRA 2500. THE CONTACT STATED THAT WHILE DRIVING, HE NOTICED SMOKE ENTERING THE VEHICLE THROUGH THE AIR VENTS. THE CONTACT COASTED TO THE SIDE OF THE ROAD, EXITED THE VEHICLE SAFELY WITH HIS PASSENGER, UPON OPENING THE HOOD NOTICED THAT THE WHOLE ENGINE COMPARTMENT
• AS I WAS DRIVING HOME MY CHECK ENGINE LIGHT CAME ON AND ALL OF MY LIGHTS WENT OUT. I HAD NO TAIL LIGHTS AND THE RADIO STARTED SAYING NO SIGNAL DETECTED. THE DASH SCREEN WAS SAYING SERVICE KEYLESS ENTRY SYSTEM. AND I HAD NO RUNNING LIGHTS BUT MY HEADLIGHTS. PRETTY SCARY THINKING NO ONE COULD SEE ME
• Truck has had multiple issues related to the electrical system and truck modules. It is my opinion that these are all related to voltage issues or module problems. i have had multiple infotainment issues with delays loading, freezing up etc. dealer has ran updates and checks with nothing found.

Typical onset: 50K miles Est. repair: $500🔥 1 fire reports

“TL* THE CONTACT OWNS A 2020 GMC SIERRA 2500. THE CONTACT STATED THAT WHILE DRIVING, HE NOTICED SMOKE ENTERING THE VEHICLE THROUGH THE AIR VENTS. THE CONTACT COASTED TO THE SIDE OF THE ROAD, EXITED THE VEHICLE SAFELY WITH HIS PASSENGER, UPON OPENING THE HOOD NOTICED THAT THE WHOLE ENGINE COMPARTMENT ”

— NHTSA complaint filing

Estimated Repair Costs

TRANSMISSION(~50K mi)

$500

OTHER(~50K mi)

$500

BRAKES(~50K mi)

$500

ELECTRICAL(~50K mi)

$500

ENGINE(~50K mi)

$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 106 owner complaints for this specific year, here's what to check or ask about:

☐
TRANSMISSION: There is an issue that is causing the batteries to die. This in return causes the Vehicle to go into Limp home mode with no warning. The "issue" was supposed to be resolved by the Dealer in March 2022. The resolution was that one battery was bad. The vehicle is equipped with two batteries. Each of w
Typically appears around 50K miles. Repair cost ~$500
☐
OTHER: TL* THE CONTACT OWNS A 2020 GMC SIERRA 2500. WHILE DRIVING 5 MPH, THE BRAKES ENGAGED AUTOMATICALLY AND THE TRACTION CONTROL WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN SEVERAL TIMES TO CARL BLACK CHEVROLET BUICK GMC (LOCATED AT 1110 ROBERTS BOULEVARD NORTHWEST, KENNESAW, GA 30144, (888) 457
Typically appears around 50K miles. Repair cost ~$500
☐
BRAKES: TL* THE CONTACT OWNS A 2020 GMC SIERRA 2500. WHILE DRIVING 5 MPH, THE BRAKES ENGAGED AUTOMATICALLY AND THE TRACTION CONTROL WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN SEVERAL TIMES TO CARL BLACK CHEVROLET BUICK GMC (LOCATED AT 1110 ROBERTS BOULEVARD NORTHWEST, KENNESAW, GA 30144, (888) 457
Typically appears around 50K miles. Repair cost ~$500
☐
ELECTRICAL: 2020 GMC SIERRA DENALI DURAMAX 3000 MILES TRIED TURNING ON TRUCK THIS MORNING TO GO TO WORK AND WOULD NOT EVEN CRANK IT IS A PUSH START OPTION HAVE NO CLUE ON HOW IM GOING TO TAKE IT TO THE DEALERSHIP IF I CANT GET IT OF PARK INTO NEUTRAL FOR A TOW TRUCK AT LEAST ! TRUCK DOES NOT CRANK IT THROWS M
Typically appears around 50K miles. Repair cost ~$500
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)