GMC Maintenance Schedule & Costs

By CarWhere Research · Updated

GMC maintenance costs about $1,704 a year across the 1 model we price (AAA's 2025 per-mile benchmarks for each model's vehicle category, 15,000 miles a year), against a $1,656 all-vehicle average. GMC First Service Visit covers first scheduled service visit for new GMC owners. GMC's published oil-change interval: condition-based: GM Engine Oil Life System.

Est. per year

$1,704

vs $1,656 average

Brand rank

#5 of 25

cost, then complaints

Free maintenance

Yes

First scheduled service visit for new GM

Models covered

1

1 priced

GMC maintenance schedule

Intervals and items from GMC's own maintenance guides and owner's manuals, linked row by row. Your engine and driving conditions can change them; the manual for your car wins.

GMC factory maintenance schedule (manufacturer documents; items paraphrased)
IntervalService itemsSource
Every 7,500 miles
  • Rotate tires
  • Multi-Point Vehicle Inspection
  • Lubricate body components
  • Check oil and oil-life %; change if needed
  • Replace engine air filter when the air filter life system says so
2026 GMC Sierra/Sierra Denali 1500 Owner's Manual — Maintenance Schedule (GM-hosted PDF)
Every 22,500 miles or 24 months
  • Replace cabin air filter
2026 GMC Sierra/Sierra Denali 1500 Owner's Manual — Maintenance Schedule (GM-hosted PDF)
Every 5 years
  • Replace brake fluid
2026 GMC Sierra/Sierra Denali 1500 Owner's Manual — Maintenance Schedule (GM-hosted PDF)
Every 7 years
  • Replace A/C desiccant
2026 GMC Sierra/Sierra Denali 1500 Owner's Manual — Maintenance Schedule (GM-hosted PDF)
Every 60,000 miles
  • Replace spark plugs (2.7L Turbo only)
2026 GMC Sierra/Sierra Denali 1500 Owner's Manual — Maintenance Schedule (GM-hosted PDF)
Every 97,500 miles
  • Replace spark plugs (5.3L/6.2L V8)
2026 GMC Sierra/Sierra Denali 1500 Owner's Manual — Maintenance Schedule (GM-hosted PDF)
Every 100,000 miles
  • Replace lift-support gas struts (or 10 years)
  • Change transfer case fluid (4WD)
2026 GMC Sierra/Sierra Denali 1500 Owner's Manual — Maintenance Schedule (GM-hosted PDF)
Every 150,000 miles or 6 years
  • Drain and fill engine cooling system
2026 GMC Sierra/Sierra Denali 1500 Owner's Manual — Maintenance Schedule (GM-hosted PDF)
Severe service
  • Automatic transmission fluid and filter every 45,000 mi
  • Transfer case fluid (4WD) every 50,000 mi
2026 GMC Sierra/Sierra Denali 1500 Owner's Manual — Maintenance Schedule (GM-hosted PDF)

Oil-change interval

Normal service: Condition-based: GM Engine Oil Life System. Check oil and oil-life % every 7,500 mi; change oil/filter when CHANGE ENGINE OIL SOON appears (within 600 mi). Change at least once a year regardless. If reset accidentally, service within 3,000 mi of last service.

Severe or special conditions: Same system; under severe use the indicator may call for a change before 7,500 mi.

Oil: dexos1-spec oil; SAE 0W-20 for 5.3L and 6.2L V8; SAE 5W-30 for 2.7L Turbo L4

Source: 2026 GMC Sierra/Sierra Denali 1500 Owner's Manual — Maintenance Schedule (GM-hosted PDF)

Free / included maintenance

GMC First Service Visit

Term: First scheduled service visit for new GMC owners (at a participating dealer); no time window stated on this page

Covers: Oil and oil filter change, four-tire rotation, Multi-Point Vehicle Inspection

Source: GMC Certified Service — Maintenance (first service visit)

GMC maintenance cost by model

Per-year figures use AAA's 2025 benchmark for each model's vehicle category at 15,000 miles a year; they include repairs and tires. Models in the same category share a benchmark, so compare complaint rates too.

GMC models: estimated maintenance and NHTSA complaints
ModelEst. per year5 yearsComplaints / 1,000 soldVerdict
Sierra 1500$1,704$8,5200.922 AverageSomewhat — above average

Which GMC has the least problems?

NHTSA owner complaints per 1,000 vehicles sold (2015–2022 U.S. sales), graded against every model in the same segment. Lower is better.

GMC models in CarWhere's sales-adjusted NHTSA study
ModelSegmentComplaints / 1,000GradeYears flagged
Acadiasuvs0.811Below average2008, 2009, 2010, 2014, 2017, 2018, 2019, 2021
Sierrapickups0.922Average2015, 2019, 2020, 2021, 2022, 2023, 2024

GMC vs other brands

GMC ranks #5 of 25. Priced brands are ordered by the average of their models' estimates; brands that don't publish service prices follow, ordered by complaint rate.

Brands ranked by estimated maintenance cost per year (priced brands), then median NHTSA complaints per 1,000 sold
#BrandEst. per yearMedian complaints / 1,000Included maintenance
1Tesla$1,511—None confirmed
2Toyota$1,463–$1,7690.182 (5 models)ToyotaCare: 2 years or 25,000 miles, whichever comes first, for model years 2026 and earlier
3Mazda$1,535–$1,7460.317 (4 models)None confirmed
4Volkswagen$1,535–$1,7690.337 (2 models)Carefree Maintenance (part of Carefree Coverage): 2 years — covers the 10,000- and 20,000-mile scheduled services, or scheduled services for two years, whichever occurs first
5GMC$1,7040.867 (2 models)GMC First Service Visit: First scheduled service visit for new GMC owners
6Ram$1,7040.968 (1 model)None confirmed
7Hyundai$1,535–$1,7690.759 (4 models)Hyundai Complimentary Maintenance (HCM): 3 years or 36,000 miles, whichever comes first
8Subaru$1,619–$1,7690.405 (2 models)None confirmed
9Honda$1,535–$1,7870.497 (5 models)Honda Maintenance Program: 1 year / 12,000 miles on 2026 models
10Chevrolet$1,704–$1,7690.517 (3 models)Chevrolet Complete Care — covered first maintenance visit: One visit within the first 12 months of ownership
11Ford$1,704–$1,7690.672 (2 models)None confirmed
12Kia$1,746–$1,7690.756 (4 models)None confirmed
13Jeep$1,746–$1,7691.19 (4 models)None confirmed
14Nissan$1,746–$1,7870.355 (6 models)Nissan Maintenance Care: Up to 3 oil changes within 2 years or 24,000 miles, whichever comes first
15Porsche$1,824–$2,168—Included First Service: First scheduled service at 1 year/10,000 miles on new internal-combustion Porsches
16LexusNot priced0.202 (1 model)LexusCare complimentary maintenance: First two scheduled services: 6 months/5,000 miles and 12 months/10,000 miles, whichever comes first
17AcuraNot priced0.874 (2 models)Acura Maintenance Program: 1 year / 12,000 miles
18AudiNot priced—Audi Signature Care Scheduled Maintenance: Included with every new model-year 2026 Audi: scheduled services in the first 3 years/30,000 miles, whichever occurs first
19BMWNot priced—BMW Ultimate Care Scheduled Maintenance: 36 months or 36,000 miles, whichever first, from original in-service date
20CadillacNot priced—Cadillac First Maintenance Visit: First service visit at a participating dealer within the first year of vehicle delivery
21GenesisNot priced—Genesis Complimentary Scheduled Maintenance (with Service Valet): 3 years / 36,000 miles, whichever comes first
22Land RoverNot priced—None confirmed
23LincolnNot priced—Lincoln complimentary scheduled maintenance: 4 years / 50,000 miles
24Mercedes-BenzNot priced—None confirmed
25VolvoNot priced—Volvo Complimentary Factory Scheduled Maintenance: MY2026 gas mild-hybrid/plug-in hybrid: first two scheduled services

Frequently asked questions

Is GMC expensive to maintain?

GMC maintenance costs about $1,704 a year across the 1 model we price (AAA's 2025 per-mile benchmarks for each model's vehicle category, 15,000 miles a year), against a $1,656 all-vehicle average. GMC First Service Visit covers first scheduled service visit for new GMC owners. GMC's published oil-change interval: condition-based: GM Engine Oil Life System.

What is the cheapest GMC to maintain?

Of the 1 GMC models we cover, the Sierra 1500 has the lowest estimated maintenance cost: about $1,704 a year (AAA 2025 half-ton crew-cab pickup benchmark).

Which GMC has the least problems?

The GMC Acadia has the fewest problems of the 2 GMC models in our NHTSA study: 0.811 owner complaints per 1,000 sold (2015–2022 sales), against Sierra 0.922. Lower is better.

Is GMC a reliable brand?

On owner complaints, GMC is weaker than most: of the 2 GMC models in our sales-adjusted NHTSA study, 0 grade above average for its segment and 1 below. Fewest complaints: the Acadia (0.811 per 1,000 sold).

How often does a GMC need an oil change?

GMC's published oil-change interval: condition-based: GM Engine Oil Life System.

Does GMC include free maintenance?

Yes: GMC First Service Visit, first scheduled service visit for new GMC owners. Oil and oil filter change, four-tire rotation, Multi-Point Vehicle Inspection.

Related

Sources and method

Schedules, oil intervals and included maintenance come from GMC's own documents. Dollar estimates are AAA category benchmarks (or, for Porsche, Porsche's plan prices), never invented per-model prices. Complaint rates: NHTSA complaints ÷ published U.S. sales (CarWhere analysis).

  1. Your Driving Costs 2025 (brochure: cost per mile by vehicle category) — AAA (maintenance cents per mile by category)
  2. Your Driving Costs 2025 fact sheet (methodology) — AAA (what the maintenance line includes)
  3. NHTSA vehicle owner complaints database — National Highway Traffic Safety Administration (complaints per 1,000 sold is a CarWhere calculation)
  4. 2026 GMC Sierra/Sierra Denali 1500 Owner's Manual — Maintenance Schedule (GM-hosted PDF) — GMC (opened 2026-11-06)
  5. GMC Certified Service — Maintenance (first service visit) — GMC (opened 2026-11-06)