2020 GMC Sierra 3500 Visibility (wipers, defrost, mirrors) Problems
- Complaints
- 2about this part
- Share
- 4%of 51 total for the year
- Median mileage
- 50,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the visibility of the 2020 GMC Sierra 3500, 4% of the 51 complaints for this model year. Where a mileage was given, the median is 50,000 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.
“The contact owns a 2020 GMC Sierra 3500. The contact stated that while driving 45 MPH with passengers seated in the rear seats, the passengers became aware that water was entering the vehicle between the window and frame. There were no warning lights illuminated. The vehicle was taken to the local dealer, who informed the contact of Technical Service Bulletin: 18-NA-383. The vehicle was not diagnosed or repaired. The manufacturer was contacted and confirmed that there was no special coverage or warranty coverage on the vehicle. The contact was referred to the NHTSA Hotline for assistance. …”
NHTSA complaint #11670439, filed 2025-07, 50,000 milesRelated service bulletins
- 11015605Mar 4, 2025This technical bulletin provides a procedure to correct the condition of Suction Cup Marks on Window Glass.
- 11015146Feb 22, 2025This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to the outside rearview…
- 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.
- 11011946Nov 22, 2024This informational bulletin provides information on Outside Rear View Mirror Defog or Defrost Times Different for Passenger and Driver Mirrors.
Visibility (wipers, defrost, mirrors): other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2024 | 1 | 2% |
| 2022 | 2 | 6% |
| 2021 | 1 | 5% |
| 2020 | 2 | 4% |
| 2018 | 2 | 14% |
| 2015 | 2 | 6% |
| 2011 | 1 | 5% |
| 2005 | 1 | 4% |
| 2002 | 1 | 5% |
| 2000 | 1 | 4% |
| 1998 | 1 | 8% |
| 1997 | 1 | 10% |
Other parts of the 2020 GMC Sierra 3500
19 complaintsElectrical system
9 complaintsBrakes
7 complaintsEngine
6 complaintsFuel system
6 complaintsOther or unknown
6 complaintsBody and structure
5 complaintsTires
4 complaintsAir bags
1 complaintsEngine cooling
1 complaintsExterior lighting
1 complaintsForward collision avoidance
1 complaints
← All problems reported for the 2020 GMC Sierra 3500
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