2020 GMC Sierra 1500 Wiper Blade Sizes
AI-generated reference. Always verify torque values, fluid capacities, intervals, and procedures against the manufacturer's service manual or OEM repair information before performing work. Repairius is not liable for damage from acting on this content without verification.
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Quick Reference
| Position | Length (in) | Length (mm) | Attachment | OEM PN |
|---|---|---|---|---|
| Driver | 22" | 550mm | Push Button | 84534509 |
| Passenger | 22" | 550mm | Push Button | 84534509 |
| Rear | N/A | N/A | N/A | N/A |
Best Aftermarket Replacements
The 2020 GMC Sierra 1500 uses the same 22-inch blade on both the driver and passenger sides. This truck does not have a rear wiper. Here are some of the best aftermarket replacement options available, ranging from premium to budget-friendly:
- Bosch ICON: (Premium) A popular high-end choice, the ICON is a beam-style blade known for its durability and all-weather performance. Its asymmetrical spoiler provides even pressure on the glass for a clean, consistent wipe.
- Rain-X Latitude: (Mid-Range) This beam blade is a great all-around performer, offering excellent water repellency. The Latitude applies a Rain-X water-repelling coating directly to the windshield as it wipes.
- Trico Force: (Mid-Range) A rugged beam blade designed for high performance in all weather conditions. It features a swept-wing spoiler to combat wind lift at highway speeds, ensuring firm contact with the glass.
- Michelin Stealth: (Mid-Range) This hybrid blade combines the flexibility of a beam blade with the sturdy frame of a conventional one. It’s a great option for drivers who want a modern design with robust construction.
- PIAA Si-Tech: (Premium) PIAA's silicone-based blades are known for their long life and superior performance. Like the Rain-X blades, they coat the windshield with a water-repellent layer, causing rain to bead up and roll off.
Attachment Style
The 2020 GMC Sierra 1500 uses a Push Button style attachment. This is a common modern attachment that offers a secure, direct connection between the wiper arm and the blade. It is sometimes referred to as a "Narrow Push Button" to distinguish it from wider variants, but most aftermarket blades sold for this truck will come with the correct adapter.
How to Install
Replacing wiper blades on a 2020 Sierra is straightforward thanks to the push-button design. You will not need any tools.
- Lift the Arm: Gently lift the wiper arm away from the windshield until it locks in the service position.
- Find the Button: Locate the small square button on the wiper blade connector where it meets the arm.
- Press and Push: Press down firmly on the button. While holding it, push the entire wiper blade downward, away from the hooked end of the arm. It should slide off.
- Install the New Blade: Slide the new wiper blade into the hook on the wiper arm until you hear a distinct "click."
- Secure and Lower: Give the blade a gentle tug to ensure it is locked in place. Carefully lower the wiper arm back onto the windshield.
Note: Always read the instructions included with your new blades, as some may have slightly different adapter systems.
When to Replace
You should replace your wiper blades every 6 to 12 months for optimal visibility and safety. You'll know it's time for a new set when you notice:
- Streaking: The blades leave lines or streaks of water behind.
- Chattering: The blades skip or vibrate across the windshield instead of gliding smoothly.
- Squeaking: You hear audible noise with every wipe.
- Visible Wear: The rubber edge appears cracked, torn, or hardened.
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More specs for the 2020 GMC Sierra 1500
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Fuse Box Diagram & Amperage
Fuse box locations, layout, amps, and what each fuse controls.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2020 GMC Sierra 1500 Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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