2023 Gmc SIERRA 2500

Problems, Recalls & Reliability Report

Above Average

Quick Summary

The 2023 Gmc SIERRA 2500 has 34 owner complaints filed with NHTSA — that's 0.4x the segment average of 80. The most common issue is transmission problems (56% of all complaints), specifically: the contact owns a 2023 gmc sierra 2500. the contact stated that while driving at an undisclosed speed, the contact smelled an abnormal odor. the vehicle was taken to the dealer; however, no failure was found. the contact stated that while driving at an undisclosed speed, the contact heard an abnorm.

1 crash report 2 injuries

Total Complaints

Recalls Issued

—/5

Safety Stars

0.4x

vs Segment Avg

Known Problems

TRANSMISSION

19 complaints

56%

• The contact owns a 2023 GMC Sierra 2500. The contact stated that while driving at an undisclosed speed, the contact smelled an abnormal odor. The vehicle was taken to the dealer; however, no failure was found. The contact stated that while driving at an undisclosed speed, the contact heard an abnorm
• The contact owns a 2023 GMC Sierra 2500. The contact stated while driving 45 MPH, the vehicle was losing motive power. The contact depressed the accelerator pedal; however, the vehicle failed to respond. The contact stated that the engine was revving abnormally. The contact stated that the check eng
• The valve body inside the transmission has failed and GM has known it to fail but they have done nothing about it. My vehicle has been in the shop for 2 months because of it and “parts are on back order” it’s terrible i’ve bought this vehicle in august and it’s constantly been inside the shop for va

Typical onset: 50K miles Est. repair: $500💥 1 crashes

“The contact owns a 2023 GMC Sierra 2500. The contact stated that while driving at an undisclosed speed, the contact smelled an abnormal odor. The vehicle was taken to the dealer; however, no failure was found. The contact stated that while driving at an undisclosed speed, the contact heard an abnorm”

— NHTSA complaint filing

ELECTRICAL

4 complaints

12%

• Bought the truck brand new. within a week the service trailer brake warning light came on. has been to the dealership 3 times and they still cant fix it. This affects towing of the trailer with no trailer brakes.
• Shift to park message displayed while attempting to shut off engine after shifter was in the park position, accessory would not turn off even after driver door opened and could not leave vehicle.
• I rely heavily on this vehicle for my business and within 1 year of ownership, the vehicle broke down on the highway allowing it to only run @ 30mph. After finally locating a dealer who could evaluate the vehicle in less than 1 week, I was informed that the part was unavailable and they indicated,

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

“Bought the truck brand new. within a week the service trailer brake warning light came on. has been to the dealership 3 times and they still cant fix it. This affects towing of the trailer with no trailer brakes.”

— NHTSA complaint filing

ENGINE

3 complaints

• Defective valve body We took in our vehicle for issues with the engine. We were not able to drive it over 50 mph it only has 22,000 miles. The dealership has had the vehicle since August 13th. They have had the vehicle for 9 weeks. They said that neither them or customer [XXX] (CASE # [XXX]
• I was driving on the interstate and had just exited to refuel. As I was re-entering traffic, I accelerated to merge, and suddenly, as I was about to pull in, I felt and heard a massive metallic crash, like the entire transmission had dropped. The engine sounded abnormal, and immediately, the dashboa
• I rely heavily on this vehicle for my business and within 1 year of ownership, the vehicle broke down on the highway allowing it to only run @ 30mph. After finally locating a dealer who could evaluate the vehicle in less than 1 week, I was informed that the part was unavailable and they indicated,

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

“Defective valve body We took in our vehicle for issues with the engine. We were not able to drive it over 50 mph it only has 22,000 miles. The dealership has had the vehicle since August 13th. They have had the vehicle for 9 weeks. They said that neither them or customer [XXX] (CASE # [XXX]”

— NHTSA complaint filing

OTHER

2 complaints

• No incident as of yet. The wide angle driver mirror cannot be set high enough to see down the side of the truck. It is a factory installed towing mirror. I have to lower my my seat all of the way and I cannot see the top rail of the bed. The mirror won't let me see down the side of the truck which m
• I sent a certified 3 page letter along with 4 pages of supporting documentation on April 25th, it was received and signed for on 4/30 at 10:16 am. I have still not received a response. I called to follow up and the reference number is #1516488, they told me to file the case online. I have copy of th

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

“No incident as of yet. The wide angle driver mirror cannot be set high enough to see down the side of the truck. It is a factory installed towing mirror. I have to lower my my seat all of the way and I cannot see the top rail of the bed. The mirror won't let me see down the side of the truck which m”

— NHTSA complaint filing

BRAKES

2 complaints

• Bought the truck brand new. within a week the service trailer brake warning light came on. has been to the dealership 3 times and they still cant fix it. This affects towing of the trailer with no trailer brakes.
• When dealer took apart my rear brakes the parking brake shoe lining was un bonded from the shoe 26,000 miles and seems to be a defective part

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

— NHTSA complaint filing

Estimated Repair Costs

TRANSMISSION(~50K mi)

$500

ELECTRICAL(~50K mi)

$500

ENGINE(~50K mi)

$500

OTHER(~50K mi)

$500

BRAKES(~50K mi)

$500

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

🔍 Pre-Purchase Inspection Checklist

Based on 34 owner complaints for this specific year, here's what to check or ask about:

☐
TRANSMISSION: The contact owns a 2023 GMC Sierra 2500. The contact stated that while driving at an undisclosed speed, the contact smelled an abnormal odor. The vehicle was taken to the dealer; however, no failure was found. The contact stated that while driving at an undisclosed speed, the contact heard an abnorm
Typically appears around 50K miles. Repair cost ~$500
☐
ELECTRICAL: Bought the truck brand new. within a week the service trailer brake warning light came on. has been to the dealership 3 times and they still cant fix it. This affects towing of the trailer with no trailer brakes.
Typically appears around 50K miles. Repair cost ~$500
☐
ENGINE: Defective valve body We took in our vehicle for issues with the engine. We were not able to drive it over 50 mph it only has 22,000 miles. The dealership has had the vehicle since August 13th. They have had the vehicle for 9 weeks. They said that neither them or customer [XXX] (CASE # [XXX]
Typically appears around 50K miles. Repair cost ~$500
☐
OTHER: No incident as of yet. The wide angle driver mirror cannot be set high enough to see down the side of the truck. It is a factory installed towing mirror. I have to lower my my seat all of the way and I cannot see the top rail of the bed. The mirror won't let me see down the side of the truck which m
Typically appears around 50K miles. Repair cost ~$500
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)