2018 Chevrolet Silverado 2500 Electrical system Problems
- Complaints
- 13about this part
- Share
- 25%of 53 total for the year
- Median mileage
- 6,700miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 13 complaints about the electrical system of the 2018 Chevrolet Silverado 2500, 25% of the 53 complaints for this model year. Where a mileage was given, the median is 6,700 miles. 1 a fire, according to the filers. 1 recall campaign on record is filed under a similar system.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Diesel l5p 2017-current. When having the engine block heater plugged in, I have seen multiple trucks burn down from having a short somewhere. I have also seen the cord for the engine block heater rub against the wiring harness and rub the insulation off exposing the bare wire. I believe when this happens, an electrical arch jumps from the wire to ground a starting a fire. Please investigate engine block heater cord and it rubbing against sharp edges exposing bare wire.”
NHTSA complaint #11065989, filed 2018-01, 6,700 miles“Odometer Fraud. The contact purchased a 2018 Chevrolet Silverado 2500. The contact discovered a mileage discrepancy after the purchase. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 92,985. While attempting to register the vehicle, it was discovered that the title mileage was approximately 215,000.”
NHTSA complaint #11702712, filed 2025-12, 215,000 miles“Odometer Fraud. The contact purchased a 2018 Chevrolet Silverado 2500. The contact stated that while having a State Emissions Test performed on the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the mileage was 75,200; however, it was discovered that on January 17,2024, the mileage was 265,005.”
NHTSA complaint #11693812, filed 2025-10, 265,005 miles“Received notice if recall for engine block heater issue. Contacted dealer and advised parts not available until late spring. He further stated parts were released to north midwest only because these are cold states. I currently reside in northern nevada which is also a cold climate. Issue is not resolved!”
NHTSA complaint #11282519, filed 2019-11, 3,500 miles“Vehicle intermittently will not start. Dic displays service messages for power steering, stabilitrak, and trailering. Will not start using the key or remotely using GM app or with key fob. Dealer has attempted to fix multiple times and can't locate the problem. Gm refuses to acknowledge that a problem exists even though I have provided multiple videos documenting the non-start condition. This has occurred >6 times in 2 months. Each time under different conditions - hot vs cold, after a short drive and after a long drive. …”
NHTSA complaint #11082211, filed 2018-03, 374 milesRelated recalls
- 21V496000Jul 1, 2021General Motors, LLC (GM) is recalling certain 2017-2019 Chevrolet Silverado 2500, 3500 and 2017-2019 GMC Sierra 2500 and 3500 vehicles equipped with a Duramax…Covers: Chevrolet Silverado 2500 2017–2019, GMC Sierra 2500 2017–2019, Sierra 3500 2017–2019 +1 more
Related service bulletins
- 11017595Apr 3, 2025This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
- 11017244Mar 31, 2025The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other…
- 11017207Mar 21, 2025This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414…
- 11017031Mar 12, 2025This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
- 11014230Jan 31, 2025This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11013149Jan 17, 2025This service bulletin provides information to the customer about the rear camera guidelines not being present at times due to the VBM taking over the rear camera option.
- 11013069Jan 9, 2025This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
- 11012929Jan 7, 2025This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
- 11012027Dec 18, 2024This Preliminary Information communication provides information to the technician about vehicles that are found to have a back-up alarm inoperative during the Pre-Delivery…
- 11011805Dec 6, 2024This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 3 | 23% |
| 2025 | 8 | 27% |
| 2024 | 55 | 38% |
| 2023 | 16 | 34% |
| 2022 | 29 | 30% |
| 2021 | 17 | 19% |
| 2020 | 18 | 17% |
| 2019 | 19 | 26% |
| 2018 | 13 | 25% |
| 2017 | 15 | 28% |
| 2016 | 18 | 15% |
| 2015 | 58 | 32% |
| 2014 | 6 | 15% |
| 2013 | 10 | 20% |
| 2012 | 11 | 21% |
| 2011 | 9 | 9% |
| 2010 | 2 | 10% |
| 2009 | 9 | 15% |
| 2008 | 23 | 12% |
| 2007 | 11 | 5% |
| 2006 | 14 | 8% |
| 2005 | 98 | 36% |
| 2004 | 105 | 29% |
| 2003 | 86 | 19% |
| 2002 | 10 | 3% |
| 2001 | 26 | 7% |
| 2000 | 5 | 4% |
| 1999 | 4 | 5% |
| 1998 | 5 | 7% |
| 1997 | 2 | 3% |
Other parts of the 2018 Chevrolet Silverado 2500
12 complaintsFuel system
9 complaintsAir bags
6 complaintsOther or unknown
6 complaintsTransmission and drivetrain
6 complaintsExterior lighting
4 complaintsEquipment
3 complaintsSeat belts
2 complaintsSteering
2 complaintsSuspension
2 complaintsTires
2 complaintsBrakes
1 complaints
← All problems reported for the 2018 Chevrolet Silverado 2500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology