The 2020 GMC Sierra HD 2500 uses dual front beam-style wiper blades and generally does not include a rear window wiper on standard configurations.
To understand what this means for maintenance and replacement, this article explains the front wiper type, the status of any rear wiper, and practical tips for keeping the system in good condition.
Front wiper system: type and configuration
The following describes the front-wiper setup common on the 2020 Sierra HD 2500.
- Front wipers: dual beam-style (flat) blades mounted on each side of the windshield, replacing older bracketed frame blades.
- Operation: two independent blades sweep the front window with standard intermittent and variable-speed settings.
In short, the Sierra HD uses two beam-style front blades rather than a single traditional blade on the windshield.
Rear window wiper status
Rear visibility considerations vary by model and trim. For the 2020 Sierra HD 2500, a rear window wiper is not typically included in standard configurations.
If you do encounter a rear wiper on a specific build, refer to the owner’s manual or parts catalog for exact replacement parts and sizes.
Replacement and maintenance tips
When replacing blades, match the front beam-style blades to the correct length for your vehicle’s front arms. Always verify part numbers with GM’s parts catalog or the owner’s manual since blade lengths can vary by cab configuration and trim level.
Maintenance steps include cleaning the blades, inspecting for cracking or splitting, replacing at the recommended intervals, and ensuring the wiper motor and linkage are functioning properly.
Summary
The 2020 GMC Sierra HD 2500 relies on two front beam-style wiper blades and typically does not come with a rear window wiper. For replacements, confirm the exact blade length and fitment through GM’s parts catalog or the owner’s manual to ensure a proper, factory-approved installation.