2024 Gmc SIERRA 3500

Problems, Recalls & Reliability Report

Average

Quick Summary

The 2024 Gmc SIERRA 3500 has 62 owner complaints filed with NHTSA — that's 0.8x the segment average of 80. The most common issue is electrical problems (18% of all complaints), specifically: hello, i purchased my 2024 gmc 3500 at4 seirra late october 2023. since the purchase date, i have been informed by motorist while at intersections my tailgate was down. i thought i was doing something wrong. on 3/3/2024 i was preparing to wash my truck and noticed my front amber lights were on surr. ⚠️ 2 fire reports filed.

2 fire reports 2 injuries

Total Complaints

Recalls Issued

—/5

Safety Stars

0.8x

vs Segment Avg

Known Problems

ELECTRICAL

11 complaints

18%

• Hello, I purchased my 2024 GMC 3500 AT4 Seirra late October 2023. Since the purchase date, I have been informed by motorist while at intersections my tailgate was down. I thought I was doing something wrong. On 3/3/2024 I was preparing to wash my truck and noticed my front amber lights were on surr
• Vehicle caught fire minutes after remote starting. Fire appears to have started on firewall on the left side. We were about to take our kids to school vehicle could have easily caught our house and other property on fire. We did have the check engine light come on occasionally but it would always tu
• The in cab brake controller does not work with electric over hydraulic trailer brakes. In my research to diagnose and fix the problem I find out GMC has known about this for years and has done nothing to correct. I pulled code C1114 and GMC issued a bulletin for part number (K58-036-00) which I purc

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

“Hello, I purchased my 2024 GMC 3500 AT4 Seirra late October 2023. Since the purchase date, I have been informed by motorist while at intersections my tailgate was down. I thought I was doing something wrong. On 3/3/2024 I was preparing to wash my truck and noticed my front amber lights were on surr”

— NHTSA complaint filing

TRANSMISSION

11 complaints

18%

• Breaks and/or drive train. It is available for inspection. 1) Breaks sink causing slowed break time and decreased breaking ability. If the breaks are "pumped", more often than not, they will come back up to full pedal. However, in an emergency breaking situation, there is not time to "pump" the brea
• Car will not turn off and will display "Shift to Park". Similar recall on other models. This has gotten worse and happens most of the time now.
• Nothing has happened so far but I believe they have an issue with the Allison transmission. When you first start off in the morning driving slow the transmission shifts hard with a thump. I've taken it in to the GMC dealership in Ft. Walton Beach, Florida and they kept the truck overnight and said

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

“Breaks and/or drive train. It is available for inspection. 1) Breaks sink causing slowed break time and decreased breaking ability. If the breaks are "pumped", more often than not, they will come back up to full pedal. However, in an emergency breaking situation, there is not time to "pump" the brea”

— NHTSA complaint filing

ENGINE

7 complaints

11%

• Vehicle would crank over but not start. Diagnosed as Electronic Control Module by dealer. Part ordered on 12/6/23, GM does not have part available as of 12/27/23, vehicle unable to be driven.
• First incident we were driving on the interstate towing a fifth wheel RV, and several warning lights illuminated before everything just shut down. Manage to get to the side of the road. Vehicle finally restarted and the rest of the trip was uneventful. Second incident, vehicle had not run for two
• The contact owns a 2024 GMC Sierra 3500. The contact stated that while driving at various speeds, there was an abnormal knocking sound coming from the vehicle. There were no warning lights illuminated. The vehicle was taken to a local dealer where it was diagnosed; however, the cause of the failure

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

“Vehicle would crank over but not start. Diagnosed as Electronic Control Module by dealer. Part ordered on 12/6/23, GM does not have part available as of 12/27/23, vehicle unable to be driven.”

— NHTSA complaint filing

BRAKES

7 complaints

11%

• The in cab brake controller does not work with electric over hydraulic trailer brakes. In my research to diagnose and fix the problem I find out GMC has known about this for years and has done nothing to correct. I pulled code C1114 and GMC issued a bulletin for part number (K58-036-00) which I purc
• The truck disengages the 5th wheel trailer brakes. The DIC states "Trailer brakes disabled - service required". I intermittently lose trailer braking capability.
• Breaks and/or drive train. It is available for inspection. 1) Breaks sink causing slowed break time and decreased breaking ability. If the breaks are "pumped", more often than not, they will come back up to full pedal. However, in an emergency breaking situation, there is not time to "pump" the brea

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

“The in cab brake controller does not work with electric over hydraulic trailer brakes. In my research to diagnose and fix the problem I find out GMC has known about this for years and has done nothing to correct. I pulled code C1114 and GMC issued a bulletin for part number (K58-036-00) which I purc”

— NHTSA complaint filing

OTHER

6 complaints

10%

• Vehicle caught fire minutes after remote starting. Fire appears to have started on firewall on the left side. We were about to take our kids to school vehicle could have easily caught our house and other property on fire. We did have the check engine light come on occasionally but it would always tu
• The truck intermittently shuts off trailer brakes.
• Breaks and/or drive train. It is available for inspection. 1) Breaks sink causing slowed break time and decreased breaking ability. If the breaks are "pumped", more often than not, they will come back up to full pedal. However, in an emergency breaking situation, there is not time to "pump" the brea

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

“Vehicle caught fire minutes after remote starting. Fire appears to have started on firewall on the left side. We were about to take our kids to school vehicle could have easily caught our house and other property on fire. We did have the check engine light come on occasionally but it would always tu”

— NHTSA complaint filing

Estimated Repair Costs

ELECTRICAL(~50K mi)

$500

TRANSMISSION(~50K mi)

$500

ENGINE(~50K mi)

$500

BRAKES(~50K mi)

$500

OTHER(~50K mi)

$500

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

🔍 Pre-Purchase Inspection Checklist

Based on 62 owner complaints for this specific year, here's what to check or ask about:

☐
ELECTRICAL: Hello, I purchased my 2024 GMC 3500 AT4 Seirra late October 2023. Since the purchase date, I have been informed by motorist while at intersections my tailgate was down. I thought I was doing something wrong. On 3/3/2024 I was preparing to wash my truck and noticed my front amber lights were on surr
Typically appears around 50K miles. Repair cost ~$500
☐
TRANSMISSION: Breaks and/or drive train. It is available for inspection. 1) Breaks sink causing slowed break time and decreased breaking ability. If the breaks are "pumped", more often than not, they will come back up to full pedal. However, in an emergency breaking situation, there is not time to "pump" the brea
Typically appears around 50K miles. Repair cost ~$500
☐
ENGINE: Vehicle would crank over but not start. Diagnosed as Electronic Control Module by dealer. Part ordered on 12/6/23, GM does not have part available as of 12/27/23, vehicle unable to be driven.
Typically appears around 50K miles. Repair cost ~$500
☐
BRAKES: The in cab brake controller does not work with electric over hydraulic trailer brakes. In my research to diagnose and fix the problem I find out GMC has known about this for years and has done nothing to correct. I pulled code C1114 and GMC issued a bulletin for part number (K58-036-00) which I purc
Typically appears around 50K miles. Repair cost ~$500
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)