2018 Chevrolet Silverado 1500 Engine cooling Problems
- Complaints
- 10about this part
- Share
- 2%of 523 total for the year
- Median mileage
- 84,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 10 complaints about the engine cooling of the 2018 Chevrolet Silverado 1500, 2% of the 523 complaints for this model year. Where a mileage was given, the median is 84,000 miles.
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.
“Truck was brought in for routine maintenance they noticed At the dealership a radiator leak. I was told this is not covered under warranty And I have no lights on”
NHTSA complaint #11466795, filed 2022-05“The contact owns a 2018 Chevrolet Silverado 1500. After starting the vehicle, there was a clicking sound coming from under the hood, and then the sound stopped. While driving approximately 55 - 60 MPH, a fuel odor was detected inside the cabin of the vehicle. The vehicle was diagnosed by an independent mechanic, who determined that the exhaust manifold bolts had fractured. The bolts and gaskets were replaced. The manufacturer was notified of the failure by phone, and a case was filed. The failure mileage was approximately 125,000.”
NHTSA complaint #11773152, filed 2026-10, 125,000 miles“The contact owns a 2018 Chevrolet Silverado 1500. The contact stated while driving 35 MPH, the vehicle went into LIMP Mode and was slow to respond as needed. The contact stated that there was smoke coming from the exhaust. While driving, the rear end locked up. The contact stated that the vehicle was slipping, and the vehicle shut off while driving. The contact stated that several unknown warning lights were illuminated. The contact replaced the spark plugs, coil pack, and spark plug wires with a misfire in cylinder #6. …”
NHTSA complaint #11655153, filed 2025-04, 170,000 miles“The contact owns a 2018 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, there was an abnormal sound coming from the engine. In addition, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic who diagnosed the vehicle with coolant intrusion into cylinder #7, causing engine failure. The contact stated that metal shavings were found mixed in with the engine oil. …”
NHTSA complaint #11670542, filed 2025-07, 110,000 miles“The contact owns a 2018 Chevrolet Silverado 1500. The contact stated that while driving approximately 40 MPH, the low oil warning light illuminated. The vehicle was taken to Pepboys, and the contact was informed that the engine was a quart and a half low on engine oil. The mechanic determined that a gasket was deteriorating, and the seal had fractured, causing the oil leak. The vehicle was taken to the dealer, and the contact was informed that the engine and transmission needed to be removed to replace the gasket. The vehicle was not repaired. …”
NHTSA complaint #11716981, filed 2026-02, 84,000 milesEngine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 1 | 1% |
| 2024 | 20 | 6% |
| 2023 | 26 | 7% |
| 2022 | 25 | 4% |
| 2021 | 60 | 7% |
| 2020 | 26 | 3% |
| 2019 | 50 | 5% |
| 2018 | 10 | 2% |
| 2017 | 4 | 1% |
| 2016 | 1 | 0% |
| 2015 | 12 | 1% |
| 2014 | 9 | 1% |
| 2013 | 2 | 1% |
| 2011 | 3 | 1% |
| 2010 | 5 | 1% |
| 2009 | 5 | 1% |
| 2008 | 7 | 1% |
| 2007 | 27 | 3% |
| 2006 | 13 | 4% |
| 2005 | 18 | 3% |
| 2004 | 25 | 3% |
| 2003 | 20 | 2% |
| 2002 | 13 | 3% |
| 2001 | 17 | 4% |
| 2000 | 11 | 2% |
| 1999 | 10 | 2% |
| 1998 | 17 | 5% |
| 1997 | 35 | 6% |
| 1996 | 1 | 14% |
| 1994 | 2 | 20% |
Other parts of the 2018 Chevrolet Silverado 1500
171 complaintsElectrical system
104 complaintsEngine
103 complaintsBrakes
99 complaintsOther or unknown
60 complaintsSteering
42 complaintsSuspension
32 complaintsFuel system
19 complaintsVehicle speed control
19 complaintsElectronic stability control
16 complaintsAir bags
15 complaintsForward collision avoidance
11 complaints
← All problems reported for the 2018 Chevrolet Silverado 1500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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