The Lemon Index$6,800 middle bill · most between $6,000 and $7,800
Higher than the $4,500 middle bill owners of all 175 models reported.
2014–2022 GMC Sierra
GMC Sierra owners reported paying a median of $6,800 for a transmission replacement, with the middle half of bills between $6,000 and $7,800. That's from 22 owner reports (22 complaints to NHTSA). Costs vary by shop and region.
What owners paid
- Under $5000%
- $500–$1,0000%
- $1,000–$2,5009%
- $2,500–$5,00014%
- $5,000 and up77%
Share of the 22 owner reports in each price band.
By model year
- 2014 GMC Sierra1too few for a middle
- 2015 GMC Sierra2too few for a middle
- 2016 GMC Sierra2too few for a middle
- 2017 GMC Sierra5$7,000 middle bill
- 2018 GMC Sierra3$8,000 middle bill
- 2019 GMC Sierra3$8,700 middle bill
- 2020 GMC Sierra2too few for a middle
- 2021 GMC Sierra2too few for a middle
- 2022 GMC Sierra2too few for a middle
Reports per model year, with the middle bill where there are 3 or more. YouTube amounts count for the generation the video covers.
How often owners report the failure
- 2015 GMC Sierra26 complaints name it3% of that year's complaints
- 2020 GMC Sierra22 complaints name it4% of that year's complaints
- 2017 GMC Sierra20 complaints name it4% of that year's complaints
- 2018 GMC Sierra19 complaints name it5% of that year's complaints
- 2023 GMC Sierra17 complaints name it3% of that year's complaints
- 2022 GMC Sierra16 complaints name it2% of that year's complaints
Owner complaints to NHTSA whose own words name a transmission failure. Raw counts: popular years get more complaints. A complaint is a report, not proof of a defect.
Engines in these years
2.7 Turbo (L3B) · 5.3 V8 (L83 / L84) · 6.2 V8 (L86 / L87)
Engines with a page of their own that this model was sold with in the years above. Owners don't always say which engine they had.
Engine codes that can lead here: P0700 P0730 P0715 P0720 P0731 P0732 P0733 P0734. A code is where a shop starts, not proof the part failed.
Keep going
- GMC Sierra reliability by year
- Transmission replacement cost on every car
- Car symptoms and what they can mean
Other repairs GMC Sierra owners reported
Brake repair (94) · Engine replacement (33) · Lifter replacement (21) · Wheel bearing replacement (13) · Fuel injector replacement (11) · AC condenser replacement (7) · Fuel pump replacement (7) · Brake booster replacement (6)
The details
How we count
Every number here is a repair bill an owner reported, never a shop's price list. Two sources: the bills owners wrote in their own complaints to the U.S. government (NHTSA), and the dollar amounts owners said out loud in YouTube repair and ownership videos. A figure counts for a repair when that repair is the part named nearest to it. Left out: purchase prices, payments, rentals, towing, warranties and deductibles, amounts under $50 or over $15,000, parts-only prices ("the part was $80 on Amazon"), bills for two different repairs named together, and money someone else paid. One number per complaint (or video) and repair: the biggest, so it's the bill, not the diagnosis fee.
The range is the middle half of the bills (the 25th to the 75th percentile), so one wild number can't swing it. Owners who complain to the government often had expensive repairs, so a typical bill can be lower. Costs vary by shop and region, by dealer vs independent shop, by parts and by miles. This is what owners reported, not a quote for your car.
Check the bills yourself
NHTSA complaint numbers (search them at nhtsa.gov): 11753775, 11740118, 11726779, 11715495, 11698051, 11685316, 11681851, 11669560, 11655896, 11648985, 11638894, 11637055 and more.
Quick answers
How much does transmission replacement cost on a GMC Sierra?
GMC Sierra owners reported a median of $6,800, and the middle half paid $6,000 to $7,800, from 22 owner reports. Costs vary by shop and region.
Is a GMC Sierra transmission replacement more expensive than on other cars?
The GMC Sierra middle bill of $6,800 is higher than the $4,500 owners of all 175 models we have reports for paid.
Where do these GMC Sierra repair costs come from?
From 22 complaints to NHTSA: what owners themselves said they paid. They aren't verified bills or a shop's quote.
Which GMC Sierra years report this failure most?
In complaints to NHTSA, owners of the 2015 (26), 2020 (22), 2017 (20) GMC Sierra named it most. Raw counts, not a failure rate.
Sources: NHTSA owner complaints and YouTube videos (amounts said out loud), sorted by The Lemon Index. Owner reports, not a price quote. Costs vary by shop and region.