2020 Chevrolet Silverado 1500 Engine cooling Problems
- Complaints
- 26about this part
- Share
- 3%of 750 total for the year
- Median mileage
- 79,400miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 26 complaints about the engine cooling of the 2020 Chevrolet Silverado 1500, 3% of the 750 complaints for this model year. Where a mileage was given, the median is 79,400 miles.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving approximately 40 MPH, there was a banging sound coming from the engine compartment. The vehicle was taken to a dealer, where it was diagnosed, and determined that the lifters and the camshaft needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 120,000.”
NHTSA complaint #11722905, filed 2026-03, 120,000 miles“The contact owns a 2020 Chevrolet Silverado 1500. While operating in negative (-41°F) degree winter conditions, the Service Emission System entered an EPA-mandated speed limitation in LIMP Mode messages were displayed. Dealer diagnostics confirmed DTC: P20B9 (Heater Control Circuit Open) and P20C1. The failure was identified as the melting of the Diesel Exhaust Fluid (DEF) tank electrical connector due to undersized terminal pins overheating (Joule heating). …”
NHTSA complaint #11710279, filed 2026-01, 29,354 miles“The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while his son-in-law was driving 61 MPH, the vehicle made an abnormal clanking sound and stalled. The driver pulled over safely. The OnStar Mobile App alerted the driver of an issue with the vehicle. The contact stated that the vehicle was making an abnormal ticking sound prior to the failure. Upon arriving to the location of the vehicle, the contact noticed an oil leak underneath the vehicle. …”
NHTSA complaint #11698227, filed 2025-11, 80,000 miles“The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the vehicle was running rough and the vehicle lost automotive power. The check engine warning light was illuminated. Additionally, the transmission made an abnormal sound while starting the vehicle and while driving, and the torque converter was shuddering. The contact and his father diagnosed the vehicle as having a cylinder misfire and performed a compression test on the engine. …”
NHTSA complaint #11756458, filed 2026-08, 76,000 miles“The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving 75 MPH, the vehicle lost motive power with a tapping sound coming from the front passenger’s side of the vehicle. The message Monitor Brake Service System was displayed. The vehicle was pulled over to the side of the road and inspected, but no failure was found. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the lifters and camshaft needed to be replaced. The vehicle was not repaired. …”
NHTSA complaint #11712929, filed 2026-01, 160,000 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 2020 Chevrolet Silverado 1500
251 complaintsTransmission and drivetrain
235 complaintsElectrical system
117 complaintsBrakes
116 complaintsOther or unknown
80 complaintsSteering
74 complaintsFuel system
41 complaintsVehicle speed control
28 complaintsBody and structure
26 complaintsSuspension
20 complaintsWheels
14 complaintsElectronic stability control
13 complaints
← All problems reported for the 2020 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