2023 GMC Sierra 1500 Maintenance Schedule
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Quick Reference: 2023 GMC Sierra 1500 Maintenance Schedule
| Mileage | Service | Notes |
|---|---|---|
| 5,000 | Oil & Filter Change, Tire Rotation | First service is crucial for a new engine. |
| 10,000 | Oil & Filter Change, Tire Rotation | Inspect brake pads. |
| 15,000 | Oil & Filter Change, Tire Rotation | Continue regular inspections. |
| 22,500 | Replace Cabin Air Filter | Improves in-cab air quality. |
| 30,000 | Oil & Filter Change, Tire Rotation | Replace engine air filter. |
| 45,000 | Replace Cabin Air Filter, Replace Engine Air Filter, Change Transfer Case Fluid (4WD) | Essential for 4WD models. |
| 60,000 | Oil & Filter Change, Tire Rotation | Major service interval. |
| 75,000 | Oil & Filter Change, Tire Rotation | Replace cabin air filter. |
| 90,000 | Oil & Filter Change, Tire Rotation, Replace Engine Air Filter, Change Transfer Case Fluid (4WD) | |
| 97,500 | Replace Spark Plugs | Improves fuel economy and performance. |
| 100,000 | Oil & Filter Change, Tire Rotation, Inspect Accessory Belts | Visual inspection for belt wear. |
| 120,000 | Oil & Filter Change, Tire Rotation, Replace Cabin Air Filter, Replace Engine Air Filter | |
| 150,000 | Oil & Filter Change, Tire Rotation, Replace Accessory Belts, Drain and Fill Engine Coolant | First major coolant service. |
Severe-duty Schedule
The schedule above is for "normal" driving. If you frequently tow, haul heavy loads, drive in dusty or off-road conditions, make short trips in freezing weather, or spend a lot of time idling, you're in the "severe-duty" category. GMC recommends more frequent service in these cases:
- Oil & Filter: Don't wait for the oil life monitor. Change every 5,000 miles.
- Transmission Fluid: Service every 45,000 miles.
- Transfer Case & Differentials: Change fluid every 45,000 miles.
- Air Filters: Inspect and replace more frequently, especially in dusty areas.
Known Issues by Mileage
This generation of Sierra is still relatively new, but some early patterns are emerging:
- 15,000-30,000 miles: Some reports of infotainment system glitches, often resolved with a software update. Isolated reports of issues with the Dynamic Fuel Management (DFM) lifters, sometimes requiring replacement. Listen for a persistent ticking noise.
- 60,000-80,000 miles: Transmission "shudder" issues have been reported in some 8-speed and 10-speed models. A fluid flush with an updated fluid type often resolves this. Some minor oil leaks may start to appear around the oil pan or valve covers.
- 100,000+ miles: This is the point where neglect of the severe-duty schedule can become apparent. Issues with the DFM system can become more pronounced if oil changes were not frequent enough. Water pump and thermostat issues may also arise.
Estimated Cost per Service
- 5,000-15,000 miles (Oil Change & Tire Rotation): $80 - $150
- 30,000-45,000 miles (Includes Air Filters/Transfer Case): $250 - $500
- 60,000-97,500 miles (Includes Spark Plugs): $400 - $800
- 150,000 miles (Major Service): $800 - $1,500+
What You Can DIY vs. Shop
- DIY: Oil and filter changes, tire rotation (with a good jack and stands), engine and cabin air filter replacement.
- Shop: Transmission, differential, and transfer case fluid changes, spark plug replacement (can be tricky on modern engines), brake and coolant flushes, and any diagnostic work.
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More specs for the 2023 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.
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
2023 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 2026-08-21.