2018 GMC Acadia 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 |
|---|---|---|---|
| Driver | 24 | 600 | Push-button |
| Passenger | 21 | 525 | Push-button |
| Rear | 12 | 300 | Roc Loc 3 |
Best aftermarket replacements
For the 2018 GMC Acadia, several excellent aftermarket wiper blade options are available across different price points:
- Good: Rain-X Latitude, Trico Force
- Better: Michelin Stealth, PIAA Si-Tech
- Best: Bosch ICON
Attachment style
The front wiper arms on the 2018 GMC Acadia use a push-button style attachment, which is common on many newer vehicles. The rear wiper arm uses a Roc Loc 3 attachment, which can be less familiar to some DIYers but is straightforward to work with.
How to install
Front Wipers (Push-Button):
- Lift the wiper arm away from the windshield.
- Locate the small square button on the top of the wiper blade where it meets the arm.
- Press the button and slide the old blade down and off the arm.
- Slide the new blade onto the arm until it clicks into place.
Rear Wiper (Roc Loc 3):
- Lift the wiper arm cover to expose the connection point.
- Pivot the blade so it is perpendicular to the arm.
- Pull the blade firmly away from the arm to release it.
- Align the new blade and push it onto the arm until it snaps securely in place.
When to replace
Wiper blades are a wear item and should be replaced every 6 to 12 months, or as soon as you notice a decline in visibility. Telltale signs that it's time for a new set include:
- Streaking: Leaving lines of water on the glass.
- Chattering: The blade skipping across the windshield.
- Squeaking: Audible noise with each wipe.
- Cracked or torn rubber: Visible damage to the blade edge.
Regularly cleaning your wiper blades with a damp cloth can help extend their life.
Need wipers swapped fast? Find a shop on Repairius.
More specs for the 2018 GMC Acadia
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
2018 GMC Acadia 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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