What ownership is like, what breaks at what mileage, what the repairs cost, and what to check before you buy one.
← All GMC Sierra 1500 generations
NHTSA complaints per catalog listing in this generation run from 0.84 for 2012 (152 complaints across 180 listings) to 3.46 for 2008 (471 across 136). The generation median is 2.52. No year reaches twice the median: the highest, 2008, is 1.4 times it. The top complaint areas are air bags, brakes and electrical in the early years, and air bags and structure later; air bags line up with the inflator recalls below. NHTSA files some of these years under 'Sierra 1500 Hybrid' as well as 'Sierra 1500' (2010 appears only under the hybrid name), so we combined the records; without that, 2010 and 2012 would look nearly complaint-free. Several 'years to avoid' lists point at the AFM years generally; we flag by rule, and none trips it.
| Miles | Item | Cost | Notes |
|---|---|---|---|
| often cited before 100K; some owners report 180K-220K with no issue (Marin Mazda, Silverado page) | 5.3L/6.2L AFM (cylinder deactivation) lifter failure | $2,600-$4,800 (avturo, independent shop; Silverado figure, shared GM platform); $3,000-$4,500 for lifters on both banks (Capital Motorcars); $3,200 for a lifter repair against $7,000+ for an engine overhaul if a ticking lifter is ignored (Autos of Chicago). Go-Parts has a Sierra-specific 1999-2015 lifter guide that confirms the pattern on 2007-2015 trucks. | Typical sign is a ticking or misfire (a lifter that has collapsed). Go-Parts says lifters on 2007-2015 Sierras with AFM are designed to collapse on command, which is where the failures come from. Marin Mazda reports 2011-2013 trucks do better than earlier AFM years but are not immune. Ask whether the lifters or the engine were ever replaced, listen at a cold start, and check for a misfire code. Our ad-mention counts are not failure counts. |
| often noted by about 120K (Eskimo Auto Repair) | Oil consumption on 2007-2013 5.3L (piston rings with AFM) | Not verified: no repair price found for a ring job; owners report adding about a quart per 1,000 miles (Rohnert Park Transmission, a Silverado page; shared GM platform) | Apex Tech Nation says the 2007-2013 ring design controls oil poorly on the AFM cylinders; Rohnert Park Transmission says class actions have been filed. Check the dipstick, ask how often the owner adds oil, and look at the tailpipe for blue-grey soot. |
| 100K-150K for the wave plate (Transmission Repair Cost only) | 6L80 six-speed automatic: wave plate and torque converter wear | Wave plate job $1,400-$2,200 independent / $2,000-$3,000 dealer; full rebuild $2,500-$4,000 (Transmission Repair Cost) or $3,800-$4,900 (Creech Import, citing RepairPal, Raleigh). Silverado figures; same transmission, shared GM platform. | Coretransmissionparts calls the wave plate the most common 6L80 failure and describes a harsh 1-2 shift, then loss of 4th gear; Transmission Repair Cost names the 3-5-reverse plate. The two shops disagree on which plate, so we say only 'wave plate'. au7o adds a separate control-module (TEHCM) fault that sends the truck into limp mode. Ask for fluid-service records. |
| any | Passenger air bag inflator recalls (21V050000, 21V051000, 21V052000, 21V053000, 21V054000) | Free at a GMC dealer when open | These cover passenger-side inflator modules on 2007-2014 Silverado 1500, Sierra 1500 and related trucks; which VINs are included varies by campaign. Check the exact VIN. |
| any | 2011 rear axle cross pin recalls (10V643000, 11V007000) | Free at a GMC dealer when open | 10V643000 names 2011 Silverado LD and Sierra LD trucks. The cross pins were not properly heat treated and could fracture and displace, locking the rear axle. Covers certain 2011 trucks only. |
No year in this generation was flagged. A year is flagged by our rule only when all three hold: (1) its NHTSA complaints per catalog listing is at least 2.0x the median for its generation, (2) the share of ads that mention a problem is above the generation median, and (3) we track at least 30 listings for that year. The cutoff was fixed before we looked. Ad mentions are not failures, and a flag is a reason to inspect harder, not a verdict on any one car.
| Year | Complaints | Top components | |
|---|---|---|---|
| 2007 | 344 | Air Bags, Service Brakes, Electrical System | |
| 2008 | 471 | Air Bags, Unknown Or Other, Structure | |
| 2009 | 280 | Air Bags, Unknown Or Other, Structure | |
| 2010 | 217 | Air Bags, Unknown Or Other, Structure | |
| 2011 | 366 | Air Bags, Unknown Or Other, Structure | |
| 2012 | 152 | Air Bags, Unknown Or Other, Structure | |
| 2013 | 168 | Unknown Or Other, Air Bags, Structure |
source: NHTSA complaints database (api.nhtsa.gov). Complaints are owner reports, not confirmed failures.
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We don't tell you to skip a year; we flag by a fixed rule (see 'Years flagged' in each generation), and no Sierra 1500 year trips it. The closest calls: 1999 has 30.32 NHTSA complaints per catalog listing (758 complaints across 25 listings) against a Gen 1 median of 5.46, but 25 listings is below the 30 our rule needs. 2000 is 2.6 times the median but 8 of 35 enriched ads (22.9%) mention a problem against a 25.3% median, so it fails the second test. 2014 sits at 2.74 per listing against a Gen 3 median of 1.42, 1.9 times, just under the 2.0 cutoff. Ad mentions are not confirmed failures.
It depends on the engine and generation. Gen 1 (1999-2006): rusted brake lines and 4L60E wear. Gen 2 (2007-2013): AFM lifter failure and oil consumption on the 5.3L, and the 6L80 automatic. Gen 3 (2014-2018): the 8-speed shudder, lifters, and recalls for power steering assist and brake vacuum. Gen 4 (2019 on): lifter reports, 10-speed shift complaints, and recalls. Each is priced, with sources, in the generation sections.
Avturo puts a 5.3L/6.2L lifter job at $2,600-$4,800 at an independent shop. Capital Motorcars gives $3,000-$4,500 for lifters on both banks, and Autos of Chicago gives $3,200 for a lifter repair against $7,000+ for an engine overhaul if a ticking lifter is ignored. Those prices come from Silverado-focused pages; the engine is shared, but they are shop figures, not a quote for your truck.
Owners and shops report a shudder under light throttle on 8L90 trucks (2015-2019). Transmission Repair Cost, writing about the Silverado, says GM handled it with bulletins and a class action settlement; the usual fix is the updated fluid and a reflash ($400-$700 dealer, $300-$500 independent), then a torque converter ($1,200-$2,200 independent, $1,800-$2,800 dealer) if it persists. We don't have a failure rate, only these reports. Ask for the VIN's service history.
We don't have a mileage figure we could verify from two sources, so we won't give one. What we can show: lifter failure is reported before 100K miles on some trucks and not on others (Marin Mazda reports owners at 180K-220K with no major issues), and the 6L80 wave plate is reported at 100K-150K miles (one source). Service records tell you more than the odometer.
Mechanically close. CarBuzz and Wikipedia describe the Sierra as the Silverado's twin from 1999, sharing platforms (GMT800, GMT900, K2XX, T1XX) and engines. GMC numbers its generations differently, because the Sierra name began in 1988, so the 1999 truck is its second generation. That is why many of the repair prices here come from Silverado sources.