2024 GMC Sierra 1500 Transmission Fluid & Service
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Quick answer
- Transmission Make/Model: General Motors 10L80 (most gasoline engines), or Allison 10L1000 (Duramax diesel)
- OEM Fluid Spec: Dexron ULV (for 10L80), Dexron HP (for Allison 10L1000)
- Drain & Fill Capacity (10L80): Approximately 7.5-8.5 quarts (7.1-8.0 liters)
- Full Overhaul Capacity (10L80): Approximately 13 quarts (12.3 liters)
- Drain & Fill Capacity (Allison 10L1000): Approximately 10-12 quarts (9.5-11.4 liters) – verify with dealer or service manual
- Full Overhaul Capacity (Allison 10L1000): Approximately 18-20 quarts (17.0-18.9 liters) – verify with dealer or service manual
- Filter OEM Part Number (10L80): Verify with dealer or service manual as part numbers can vary.
- Filter OEM Part Number (Allison 10L1000): Verify with dealer or service manual as part numbers can vary.
- Recommended Service Interval: Normal Duty: 97,500 miles (150,000 km) for 10L80. Severe Duty/Towing: 45,000 miles (72,000 km) for 10L80 and Allison 10L1000.
Fluid type explained
The 2024 GMC Sierra 1500 typically comes equipped with one of two advanced 10-speed automatic transmissions, depending on the engine configuration. Most gasoline models will feature the General Motors 10L80 transmission, while models equipped with the Duramax 3.0L Turbo-Diesel engine utilize the Allison 10L1000 transmission. It is crucial to use the correct fluid specified for your particular transmission.
For the GM 10L80, the specified fluid is Dexron ULV (Ultra Low Viscosity). This is a synthetic blend fluid designed to meet the extremely precise lubrication and thermal management requirements of modern 10-speed transmissions. Using any other fluid can lead to premature wear, poor shift quality, and potential transmission failure. The
More specs for the 2024 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.
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.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
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
2024 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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Values can vary by engine, trim and build date; check your VIN-specific service information. Updated 2026-06-22.