2023 Gmc SIERRA 3500
Problems, Recalls & Reliability Report
Quick Summary
The 2023 Gmc SIERRA 3500 has 41 owner complaints filed with NHTSA — that's 1.6x the segment average of 25. The most common issue is transmission problems (32% of all complaints), specifically: i received a p0747 and p0700 transmission codes on my gmc sierra 3500. it would not engage above 3rd gear and i almost was rear ended by a semi truck because i was unable to speed up. the vehicle cel turned on and "engine power reduced" notification appeared on my cluster. engine rpms were at 280. There is 1 recall issued for this model year.
41
Total Complaints
1
Recalls Issued
—/5
Safety Stars
1.6x
vs Segment Avg
Known Problems(top 5 of 8)
TRANSMISSION
13 complaints- • I received a p0747 and p0700 transmission codes on my GMC sierra 3500. It would not engage above 3rd gear and I almost was rear ended by a Semi truck because I was unable to speed up. The vehicle CEL turned on and "Engine power reduced" notification appeared on my cluster. Engine RPMS were at 280
- • Transmission had a hard shift which jolted the truck switching gears to a lower one unexpectedly. It caused my body to jerk back. It happened 3 times. 2 were mild but the 3rd time was extreme. Always while accelerating. Average speed was about 50 mph when this occurred. Dealer has confirmed a f
- • We were traveling to our cabin in Southern Utah when the Transmission Control Solenoid Valve stuck in an "on" position. We were unable to accelerate more than 55 miles per hour. We stopped in St. George and went to the Chevy dealer for a fix. We were told that they could not get to our vehicle fo
“I received a p0747 and p0700 transmission codes on my GMC sierra 3500. It would not engage above 3rd gear and I almost was rear ended by a Semi truck because I was unable to speed up. The vehicle CEL turned on and "Engine power reduced" notification appeared on my cluster. Engine RPMS were at 280”
— NHTSA complaint filing
Recalls (1)
General Motors, LLC (GM) is recalling certain 2020-2024 Chevrolet Silverado 2500, 3500, GMC Sierra 2500 and 3500 vehicles equipped with power-unlatching tailgates. The tailgate's electronic gate-release switch may short circuit due to water intrusion, which can result in the tailgate inadvertently unlatching while the vehicle is in park.
Risk: An unlatched tailgate may open while driving and result in a loss of unsecured cargo, creating a road hazard and increasing the risk of a crash.
Fix: Owners are advised to check that the tailgate is closed and latched before driving. Dealers will replace the exterior touchpad switch assemblies, free of charge. Owner notification letters were mailed May 17, 2024. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is N232426400.
Estimated Insurance Cost for 2023 Gmc SIERRA 3500
How this estimate is calculated
Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.
Maintenance & Warranty
Recommended Gmc SIERRA 3500 Service Intervals
Uses GM Oil Life System. Full-size trucks may have shorter differential and transfer case intervals if used for towing.
"Severe service" conditions (heavy towing, extreme temps, city stop-and-go) typically halve these intervals. Always consult your vehicle's owner's manual for the authoritative schedule.
Gmc New-Vehicle Warranty Coverage
Estimated Repair Costs
Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.
🔍 Pre-Purchase Inspection Checklist
Based on 41 owner complaints for this specific year, here's what to check or ask about:
- ☐TRANSMISSION: I received a p0747 and p0700 transmission codes on my GMC sierra 3500. It would not engage above 3rd gear and I almost was rear ended by a Semi truck because I was unable to speed up. The vehicle CEL turned on and "Engine power reduced" notification appeared on my cluster. Engine RPMS were at 280
Typically appears around 50K miles. Repair cost ~$500
- ☐DRIVER ASSIST/CAMERAS: On March 22, 2023, my wife and I purchased a new 2023 GMC Sierra 3500 Denali from Coast Buick GMC. Before purchasing, we asked the salesman if it had adaptive cruise control and lane keep assist, and he said yes and showed us the buttons and explained how they worked. We purchased the truck because
Typically appears around 50K miles. Repair cost ~$500
- ☐ELECTRICAL: We’ve had issues with the electrical system/brake lights when we hook any trailer (horse/boat/utility) to the truck. One issue is that the system shows unconnected and the trailer lights blink or do not work. We’ve brought this in to the dealer 3 times and they have yet to resolve the issue. The oth
Typically appears around 50K miles. Repair cost ~$500
- ☐ENGINE: The contact owns a 2023 GMC Sierra 3500. The contact stated that while driving approximately 60 MPH, the messages "Service Charging System" and "Service Diesel Emissions System" were displayed, and suddenly the power steering and power brakes malfunctioned, causing the contact to almost lose control
Typically appears around 50K miles. Repair cost ~$500
- ☐RECALLS: Verify all 1 recall have been completed — free at any Gmc dealer
- ☐General: Get a pre-purchase inspection from an independent mechanic ($100-$200)
Gmc SIERRA 3500 — Year Comparison
How does 2023 compare to other years? Fewer complaints = more reliable.
NHTSA Safety Rating
No NHTSA safety rating available
At a Glance
- Complaints
- 41
- Recalls
- 1
- Fire reports
- 0
- Crash reports
- 7
- Injury reports
- 0
- Segment avg
- 25
Check a Specific VIN
See recalls for YOUR 2023 Gmc SIERRA 3500