2024 GMC Sierra 1500

Volume SLT/Elevation trim ships with the 5.3L EcoTec3 V8 rated 355 hp; range extends from 310 hp (2.7L TurboMax standard on Pro/SLE) through 420 hp (6.2L V8 on AT4X/Denali Ultimate), plus the 305-hp 3.0L Duramax I6 diesel (LZ0) available across most trims.

5.3L V8 peaks at 383 lb-ft @ 4,100 rpm. Duramax leads the range at 495 lb-ft and 2.7L TurboMax at 430 lb-ft — strong torque options across the lineup for a half-ton.

Instrumented tests of the mechanically identical 2024 Silverado 1500 with 5.3L V8/10-speed put 0–60 mph at 6.5–7.0 s; the 6.2L V8 Denali Ultimate/AT4X runs low-5-second times, and the 3.0L Duramax lands near 8 s but with strong midrange.

5.3L V8 and 6.2L V8 deliver the smooth, low-effort torque expected of a modern GM small-block — no turbo lag, minimal harshness under load; upgraded 305-hp Duramax I6 is uncommonly refined for a diesel. The 2.7L TurboMax has some coarse notes at higher revs but strong low-end. Competitive with F-150 non-hybrid V8.

GM's 10L80 10-speed automatic paired with the V8s and Duramax shifts crisply and holds gears intelligently under tow/haul mode; occasional hunting between closely-spaced gears at part-throttle cruise is the primary complaint. The 8-speed on 2.7L TurboMax is competent but a step behind the 10-speed.

Best-in-class-adjacent 13,000 lb conventional tow when properly equipped with the 5.3L V8 and Max Trailering Package, matched by the 3.0L Duramax and 6.2L V8. AT4X and Denali Ultimate rate lower due to off-road gearing and equipment mass.

Best-case payload of ~2,240 lbs on lighter Pro/SLE 2WD configurations; most retail Elevation/SLT/Denali trims land 1,700–2,000 lbs, and off-road AT4X is lowest at ~1,510 lbs. Competitive but trails F-150 (up to ~2,455) at the peak.

GM's ProGrade Trailering suite is among the most comprehensive on any half-ton: integrated trailer brake controller, tow/haul mode, up to 14 camera views including Transparent Trailer, hitch guidance with hitch-view zoom, jackknife alert, trailer light test, tire pressure/temperature monitoring for trailer tires, and Sierra-exclusive MultiPro tailgate with kick-out step for hitch access. myGMC trailering app tracks maintenance and mileage per trailer profile.

4WD is optional across every trim and standard on AT4, AT4X, AT4X AEV Edition, Denali Ultimate and select Denali configurations; two-speed transfer case with 4-Auto (Autotrac) available on higher trims, terrain-response modes on AT4/AT4X, and front/rear electronic locking differentials on AT4X. Only a small step below 'standard everywhere' scoring bands because base Pro/SLE remain 2WD by default.

AT4X AEV Edition — new for 2024 — pushes off-road credibility with beadlock-capable 18-inch wheels, hot-stamped boron-steel skid plates, and unique fascia for improved approach angle. Base AT4X delivers Multimatic DSSV spool-valve dampers, front/rear electronic locking differentials, 33-inch Goodyear Wrangler Territory MT tires, and ~11.2 in. ground clearance. Competitive with Ram 1500 Rebel and F-150 Tremor tier; not quite Raptor/TRX-class (no wide-body / long-travel suspension).

Four distinct powertrains — 2.7L TurboMax I4, 5.3L V8, 6.2L V8, and 3.0L Duramax I6 diesel — cover economy, mainstream torque, top-power, and long-haul-efficiency needs. No hybrid, PHEV, or EV in the Sierra 1500 lineup (Sierra EV launches as a separate model), which caps the score below F-150 (PowerBoost hybrid).

EPA combined figure for volume Elevation/SLT Crew Cab 5.3L V8 4WD with Dynamic Fuel Management. Duramax diesel is the standout at 24 MPG combined 4WD / 27 MPG RWD; 2.7L TurboMax and 6.2L V8 land in the mid-teens to low-20s.

EPA city rating for volume 5.3L V8 4WD Crew Cab. Duramax diesel leads at 22–23 city; 6.2L V8 trails at 15.

EPA highway figure for volume 5.3L V8 4WD Crew Cab; the 3.0L Duramax I6 RWD posts a class-leading 33 MPG hwy, the highest of any half-ton pickup on sale.

Volume 5.3L V8 4WD Crew Cab pairs a 24-gallon tank with 17 MPG combined for roughly 408 mi. Optional 28-gal tank on select trims extends to ~476 mi; the 3.0L Duramax with the same tank reaches ~576–648 mi depending on driveline.

EPA sticker estimate for volume 5.3L V8 4WD Crew Cab at 15,000 mi/yr and reference regular-gas prices. Duramax is cheapest to run despite diesel's price premium; 6.2L V8 is costliest due to premium-fuel requirement.

Volume 5.3L V8 and 2.7L TurboMax both run on regular 87-octane — no premium penalty for mainstream buyers. Duramax uses ultra-low-sulfur diesel (higher per-gallon cost but excellent MPG offsets it) with no DEF hassle for typical retail owners. Only the top-tier 6.2L V8 on AT4X / Denali Ultimate requires premium unleaded, capping the score below Ford F-150 (85), whose Raptor is the sole premium-required engine.

The 2024 GMC Sierra 1500 Crew Cab 4WD (structurally shared with the Silverado 1500 and unchanged for the 2024 refresh) is rated 4 stars overall by NHTSA — 4-star frontal, 5-star side crash, 3-star rollover. Other cab/drive configurations return 4 stars overall as well.

The 2024 Sierra 1500 Crew Cab earns Good in the original moderate overlap front test and Good driver-side small overlap, but only Acceptable in the updated side test and Marginal in passenger-side small overlap. GM earned zero IIHS 2024 Top Safety Pick / TSP+ awards; the Sierra 1500 is not a TSP.

The 2024 refresh made GMC Pro Safety standard on every Sierra 1500 trim (Pro, SLE, Elevation, SLT, AT4, AT4X, Denali, Denali Ultimate): automatic emergency braking, forward collision alert, front pedestrian braking, lane keep assist with lane departure warning, IntelliBeam auto high beams, and following distance indicator. Adaptive cruise, blind-zone alert with lane change alert, and rear cross-traffic alert remain optional on Pro/SLE/Elevation (Driver Alert Package) and standard from SLT/AT4 up.

IIHS front crash prevention on the shared 2024 Silverado/Sierra 1500 platform earns Advanced daytime vehicle-to-vehicle results with functional pedestrian detection; nighttime pedestrian and lower-speed pedestrian scenarios still trail best-in-class Ford and Toyota systems. Behavior in real-world reviews is competent rather than class-leading.

Blind Zone Alert with Lane Change Alert and Rear Cross Traffic Braking are available but optional on Pro/SLE/Elevation (Driver Alert Package) for 2024, becoming standard from SLT and above. Advanced Trailering extends blind-spot coverage along an attached trailer's length on properly equipped trucks — a genuine strength for tow use — but base trims miss out entirely.

Lane Keep Assist with Lane Departure Warning is standard fleet-wide via GMC Pro Safety on the 2024 Sierra, but true hands-on lane centering is only available bundled with Super Cruise on Denali and Denali Ultimate (option). Base LKA is reactive in Car and Driver / Edmunds reviews — nudges the truck back into lane rather than centering smoothly.

Full-speed-range adaptive cruise with stop-and-go is standard on SLT and above for 2024 and available on Pro/SLE/Elevation via the Driver Alert Package; it integrates cleanly with Super Cruise when equipped on Denali/Denali Ultimate. Highway behavior is smooth, but gap tuning and resume are less polished than BlueCruise-equipped F-150s.

Super Cruise — hands-free highway driving with automatic lane changes and trailering support — is available as a ~$2,200 option on 2024 Sierra 1500 Denali and Denali Ultimate (not standard on any 2024 trim, and not offered on AT4X). GM's system covers 750,000+ miles of mapped divided highway in North America and is one of only two mature hands-free systems in a full-size truck (alongside Ford BlueCruise on F-150).

LED headlights with IntelliBeam auto high beams are standard on all 2024 Sierra 1500 trims; Denali/Denali Ultimate add adaptive-matrix elements. IIHS headlight testing on the 2024 Sierra Crew Cab shows the high- and low-beam patterns avoid collisions in the 12 and 25 mph scenarios — Acceptable-tier performance, competent but not class-leading and no Good-across-the-lineup rating.

Sightlines are typical for a modern full-size truck — tall belt line, deep hood, thick A/B/C pillars, and rear headrests obstruct the interior mirror. HD Surround Vision with up to 14 camera views (available on higher trims for 2024) plus the transparent-trailer view meaningfully compensate at low speeds; base Pro/SLE/Elevation rely on a standard rearview camera only.

Crew Cab (dominant body style for retail) offers ~65 in rear shoulder room with wide-opening rear doors, exposed outboard lower LATCH anchors, and three top tethers. Center position is belt-only; the flat rear floor and generous legroom make rear-facing installs and three-across attempts easier than most rivals, though IIHS ease-of-use for this generation lands at Acceptable rather than Good.

2024 Sierra 1500 Crew Cab in the volume SLT/AT4/Denali configuration seats 5 with front buckets; SLE/Elevation can be optioned with a front bench for 6-passenger capacity. Regular Cab dropped from retail for 2024 (fleet only).

T1XX platform figure carried forward through the 2022 mid-cycle refresh and unchanged for 2024. Sunroof-equipped Denali/Denali Ultimate trims lose about 0.6 in.

Best-in-class front legroom on the GM full-size platform; unchanged for 2024 and identical to Chevrolet Silverado 1500 Crew Cab.

Crew Cab rear headroom is generous and above the truck-segment midpoint; carryover figure for 2024.

Crew Cab rear legroom is limousine-like for a truck — competitive with Silverado and F-150 SuperCrew, well ahead of Tundra CrewMax (41.6 in). Double Cab drops sharply to 35.2 in.

Volume Crew Cab configuration ships with the 5-foot-8 Short Box (69.9 in); Standard Box (79.4 in) and Long Box (98.2 in) available depending on cab. Multiple bed lengths give configuration flexibility but the volume short box scores modestly on absolute length.

Segment-competitive short-box volume; the deep, wide GM cargo box exceeds Ram 1500 short-bed (53.9 cu ft) and matches Silverado 1500 short-bed (identical box). Standard and Long Box options expand capacity.

MultiPro tailgate (standard on SLE and up; six functions including inner gate load stop, primary/inner gate, easy-access step and full step) remains a category-leading innovation, upgraded to power MultiPro on Denali Ultimate for 2024. Cabin adds a huge center console with removable tray, dual glove boxes on Denali, deep door bins, under-rear-seat lockable storage, and available CarbonPro composite bed on AT4X/Denali Ultimate. Falls short of F-150's Pro Power Onboard generator and Rivian gear tunnel innovation.

Denali Ultimate's 16-way massaging front seats in semi-aniline full-grain leather earn strong long-haul praise; SLT and AT4 offer heated/ventilated 10-way power seats with good support. Crew Cab rear bench is spacious (43.4 in legroom) and well-cushioned, though the flat bottom cushion is typical of the segment. Base Pro cloth seats are basic.

Adaptive Ride Control (standard on Denali Ultimate, available on Denali/AT4X) delivers a composed, well-damped ride; base leaf-sprung Sierras on 20"+ wheels ride firmer than the coil-sprung Ram 1500. AT4X's Multimatic DSSV spool-valve dampers excel on and off pavement. Unladen bed hop over expansion joints remains a segment trait.

2022 refresh added active noise cancellation and acoustic laminated windshield/front-door glass on Denali and Denali Ultimate; highway cruising with the 5.3L/6.2L V8 or 3.0L Duramax diesel is notably hushed. 2.7L Turbomax I4 is coarser under load. Wind noise well suppressed even at 75 mph.

Class-leading comfort equipment breadth: heated front seats from Pro up, heated steering wheel standard on Elevation+, ventilated front seats and heated rear seats on SLT/AT4/Denali, dual-zone auto climate on SLE+, tri-zone on Denali Ultimate, 16-way power massaging front seats on Denali Ultimate, remote start standard. Head-up display and power-sliding rear window available.

2024 marked the mid-cycle refresh of the 5th-gen Sierra 1500: reworked front fascia, new 13.4" infotainment touchscreen, 12.3" digital cluster on higher trims, and revised interior architecture. GMC dropped the Regular Cab for 2024, so the Pro Double Cab 2WD became the entry point. Sierra carries a modest premium over the mechanically-identical Silverado 1500 WT (~$40,595 comparable).

Sierra 1500's volume trims skew richer than F-150 XLT or Ram Big Horn because GMC's mix leans heavily on Denali (~25%+ of Sierra sales) alongside SLT/Elevation. A typical 2024 Elevation or SLT Crew Cab 4WD with 5.3L V8, package uptake, and popular options lands in the high-$50Ks — appreciably higher than F-150 XLT SuperCrew (~$51K) and reflective of Sierra's Premium positioning. AT4X and Denali Ultimate stretch the ladder past $80K.

Sierra 1500 5-year maintenance and repair sits mid-pack for full-size gas trucks — parts are commodity and dealer service is widely available, but the Denali/AT4-heavy mix drives more premium wear items (larger wheels/tires, adaptive dampers on Denali Ultimate, off-road brakes on AT4). Duramax 3.0L diesel variants add scheduled DEF service. Slightly above F-150 due to trim mix; below luxury/HD trucks. The refreshed 2024 infotainment stack is early in its production life, adding modest software/electronics risk.

Sierra 1500 holds value slightly better than Silverado 1500 due to Denali halo demand, and roughly on par with F-150. Well behind Toyota Tundra and Tacoma on residuals but above Ram 1500 and typical mainstream trucks. Duramax diesel variants and Denali/AT4X trims retain best; the 2024 refresh (new interior, updated tech stack) supports slightly stronger residuals than the pre-refresh 2022–2023 trucks that now look dated.

GM standard bumper-to-bumper coverage — the industry floor for full-size trucks, matching Ford, Ram, and Toyota but well behind Hyundai/Kia's 5/60 coverage. GMC's Premium positioning does not translate into any warranty advantage over the mechanically-identical Silverado 1500.

GM standard powertrain coverage — segment floor for full-size trucks, matched by Ford/Ram/Toyota but far behind Nissan Titan's 5/100k and Hyundai's 10/100k. Duramax 3.0L diesel emissions components carry federally-required 8-year/80,000-mile coverage.

GMC includes 1 complimentary first-visit maintenance (oil change/tire rotation/multi-point inspection), plus 5-year/60,000-mile OnStar Guardian Safety Suite (crash response, roadside), 3-year/36,000-mile courtesy transportation, and 3-month OnStar Premium + Connected Services trials. Denali trims add elevated concierge perks. Meaningfully behind Toyota's 2-year ToyotaCare on Tundra, but slightly ahead of Ford's zero-maintenance F-150 package.

$58,500 volume-trim price minus its estimated resale value after 5 years (60% retained, or about $35,100) leaves about $23,400 in depreciation. Add the projected $7,200 in 5-year maintenance and repairs, and owning this vehicle for 5 years costs about $30,600 in total.

2024 was the launch year of the T1XX mid-cycle refresh (new 13.4" screen, 12.3" cluster, revised dashboard/software), so it carried the usual first-year software/HVAC/interior teething problems on top of the platform's already sub-average reliability trend. Consumer Reports rated the 2024 Sierra 1500 at 2/5 predicted reliability, and J.D. Power VDS scores for the current generation land near the segment average, well behind the F-150 and far behind Toyota Tundra.

GMC sits mid-pack in J.D. Power VDS and Consumer Reports brand rankings — better than a few domestic rivals but well behind Toyota/Lexus and Honda. Multi-year brand scores hover near the industry average.

The 2024 Sierra 1500 is directly caught in NHTSA campaign 24V-599 for 6.2L L87 V8 crankshaft/connecting-rod manufacturing defects (2021–2024 build) requiring engine inspection or replacement — a major powertrain recall that hits this exact model year. Additional 2024-relevant recalls include tailgate latch, seat-belt anchor, and brake-booster campaigns, plus ongoing TSBs for 10-speed shift shudder and infotainment software. This is a notably worse year-specific recall exposure than 2025 (which incorporates the L87 fix).

Sierra's 2024 engine lineup is a mixed bag: the 3.0L Duramax I6 diesel has earned a solid durability reputation, but the 5.3L L84 and 6.2L L87 V8s with Dynamic Fuel Management have well-documented lifter/camshaft failures, and the L87 in 2024 is the subject of the 24V-599 crankshaft/connecting-rod recall. The 10-speed Hydra-Matic has ongoing shudder TSBs, and the 2.7L Turbo HO improved post-2022 but still lacks long-term high-mile data. Direct exposure to the L87 recall pushes 2024 below same-generation years that carry the manufacturing fix.

The 2024 refresh brought a genuinely upmarket cabin to the volume Denali/AT4 trims that dominate the sales mix — real open-pore wood, brushed aluminum, quilted leather, and higher-grade switchgear on the new 13.4" screen / 12.3" cluster dashboard. Denali Ultimate is legitimately luxury-tier. Base Pro/Elevation trims retain hard plastics but are a small share of the mix.

2024 was the first year of the refreshed interior, so early builds shipped with the usual launch-year issues — scattered rattles, trim-fit complaints, and infotainment glitches — on top of the platform's baseline of tailgate alignment and cabin-rattle grumbles. Fort Wayne and Silao assembly remains generally consistent on panel gaps, but initial-quality signal for 2024 lags the more mature 2025 build year.

Buick-GMC dealers combined with shared Chevrolet service infrastructure yield near-nationwide coverage, with roughly 1,500 GMC franchises in the US. Service satisfaction is average — not class-leading like Lexus but comfortably above sparse networks like Rivian.

Massive parts commonality with Silverado 1500, Tahoe, Yukon, and Escalade means abundant OEM and aftermarket support, competitive DIY pricing, and quick nationwide fulfillment. Repair costs run mid-tier — cheaper than Ram's higher-labor cabin and cheaper than European rivals but higher than a base F-150 due to Denali-tier trim parts.

Volume SLE/Elevation trims carry the 13.4-inch diagonal color touchscreen introduced with the 2022 interior refresh; the fleet-oriented Pro retains a 7-inch unit. No larger option is offered.

GMC Infotainment System with Google Built-in on the 13.4-inch display is logical, tile-based, and generally quick, but reviewers flag heavy reliance on the touchscreen for HVAC/drive-mode controls and note some carry-over software quirks from the 2022 launch that OTAs have gradually addressed.

Wireless Apple CarPlay and wireless Android Auto are standard across every 2024 Sierra 1500 trim, including the Pro; wireless phone charging is standard from SLT upward.

Google Built-in delivers Google Assistant natural-language voice and Google Maps as the native nav on all SLE-and-up trims — one of the best OEM implementations in the segment. Included via an 8-year Google trial; cellular data via connected-services subscription.

Base six-speaker system is adequate; Bose seven-speaker premium audio is standard on SLT, AT4, AT4X, and Denali, and a Bose Performance 12-speaker system is standard on Denali Ultimate — one of the stronger factory audio ladders in a full-size truck.

12.3-inch full-digital reconfigurable driver display is standard on SLT, AT4, AT4X, Denali, and Denali Ultimate; SLE and Elevation get a hybrid analog-plus-color-display cluster. Graphics are crisp with tow, off-road, and performance layouts.

Sierra 1500 rides on GM's Ultifi software platform and receives whole-vehicle OTA updates covering infotainment, ADAS calibrations, Super Cruise map/feature expansions, and periodic feature additions — well ahead of Ram and Tundra, behind Rivian and Tesla.

myGMC app with OnStar Connected Services offers remote start, lock/unlock, vehicle locate, tire pressure, fuel status, and service scheduling. Interface is polished, but core remote functions revert to a paid Remote Access subscription after the 3-year trial expires. No digital key.

Multiple USB-C data/charge ports front and rear on crew-cab trims, wireless phone charging standard from SLT up, available 400-watt 120-volt cabin outlet plus bed-mounted 120V outlet, and available onboard ProGrade Trailering camera power. No 240V outlet like the F-150 PowerBoost's Pro Power Onboard flagship.

Keyless Open and Start with push-button and remote start are standard from SLE upward; the Pro fleet trim uses a traditional key. No phone-as-key / digital key offered, matching most full-size truck rivals.

HD Rear Vision Camera is standard on all trims; HD Surround Vision (multi-view 360-degree cameras) is standard on Denali/Denali Ultimate/AT4X and available on AT4/SLT. Front and Rear Park Assist are standard on SLT and up. Up to 14 available camera views with the ProGrade Trailering system, including transparent-trailer view.

Color multi-info Head-Up Display is standard on Denali Ultimate and available on Denali, but not offered on SLT or below — a step behind Ram 1500 Limited/Longhorn (available lower in the range) and matched roughly to F-150 (HUD is Limited-only).

Crew Cab (the volume body) offers 43.6 in of rear legroom and 40.1 in of rear headroom with wide-opening rear doors and a flat rear floor that eases three-across attempts and rear-facing installs. Three top tethers and outboard lower LATCH anchors are exposed but the center position is belt-only. Tall step-in on 4WD trims still means kids need help climbing in, and top tethers route behind flip-up rear cushions.

GM ProGrade Safety (AEB, forward collision alert, front pedestrian braking, lane keep assist, IntelliBeam) is standard on every 2024 trim, but the safety credentials trail rivals: NHTSA 4-star overall (frontal 4, rollover 3) and IIHS Marginal on the updated moderate-overlap front test with no Top Safety Pick award. Adaptive cruise and blind-zone alert are optional on the family-priced Pro/Elevation trims (Driver Alert Package) — standard only from SLT and up.

Crew Cab offers stretch-out second-row space (43.6 in legroom), active noise cancellation and acoustic front side glass (SLT+) for a hushed highway cabin, dual-zone climate on SLT, and heated rear outboard seats plus tri-zone climate on Denali. The 2024 refresh brings a standard 13.4 in touchscreen fleet-wide, which improves in-cabin trip navigation for families. Leaf-sprung rear axle keeps ride composed but not plush versus Ram 1500's coil-sprung setup, and no PowerBoost-style onboard inverter for road-trip gear.

GM's 10L80 10-speed automatic and torque-rich 5.3L V8 make in-town progress smooth and low-effort, and Super Cruise removes stop-and-go highway strain on Denali/Denali Ultimate/AT4X trims. But the ~231.7-in Crew Short Bed length, tall step-in, and truck-scale forward blind zones make grocery-run and parking-lot duty meaningfully harder than any SUV or midsize truck — that's the ceiling for a full-size half-ton daily driver. The 2024 refresh's larger, more responsive 13.4 in touchscreen with Google Built-in eases in-cabin task load.

17 MPG combined on the volume 5.3L V8 4WD (EPA 15/20) yields ~$3,050/yr in fuel at 15,000 mi/yr on regular unleaded — expensive per commuting mile and behind Ford F-150 EcoBoost (20 combined) and PowerBoost hybrid (25 combined). Consumables (oil, tires) are mainstream, and the 3.0L Duramax at 24 MPG combined dramatically improves the equation for buyers who upgrade (when available — production was constrained early in the 2024 model year), but the volume V8 is not commuter-cheap.

Crew Short Bed measures ~231.7 in with a ~47-ft turning circle — full-size truck proportions that struggle in tight urban lots. HD Surround Vision with up to 14 camera views and rear parking sensors (standard SLT+, available lower) is one of the segment's best low-speed aids and covers the tall belt line and thick A-pillars; base Pro/Elevation buyers get only a rearview camera.

13,300-lb max conventional tow (5.3L V8 or 3.0L Duramax w/ Max Trailering Package) and up to ~2,240-lb max payload land near the top of the half-ton class — a small step behind F-150's 13,500/2,440 peaks but well above Ram 1500 (~11,550) and Tundra (~12,000). Bed choices span 5'8"/6'7"/8'2" across cab options, and four powertrains (2.7L TurboMax, 5.3L V8, 6.2L V8, Duramax I6 diesel) match load to job.

Silverado/Sierra 1500 platform is a fleet mainstay with a proven 5.3L V8 / 10-speed drivetrain and an established 3.0L Duramax I6. Consumer Reports 2024 predicted reliability is average for the class, but the 2024 refresh year carried multiple recall campaigns (transmission control module, brake booster, tailgate) and the Duramax production pause added early-year friction. Sierra tilts more retail-luxury than Silverado but shares its work bones — still a fleet-credible platform.

MultiPro six-function tailgate (standard SLT+) is a genuine work advantage — inner gate step, workstation, easy-access surface — and available CarbonPro composite bed on AT4X/Denali Ultimate resists dents and rust. ProGrade Trailering includes an integrated brake controller (standard on most trims), 14 camera views, trailer profiles and TPMS. 120V bed and cab outlets available but capped around 400 W — no PowerBoost-scale onboard inverter for jobsite power. GM's upfit ecosystem is broad but narrower than Ford Pro.

Quiet highway cabin (active noise cancellation standard, acoustic side glass SLT+), supportive seats (16-way with massage on Denali/Denali Ultimate), and Adaptive Ride Control on AT4X/Denali Ultimate deliver strong all-day comfort. Range spans ~408 mi (5.3L V8 4WD, 24-gal tank) to ~476 mi with the optional 28-gal tank and ~672 mi with the 3.0L Duramax + 28-gal tank. Super Cruise (Denali, Denali Ultimate, AT4X) is one of only two mature hands-free highway systems available in a half-ton and materially reduces fatigue on mapped divided highways.

AT4X delivers legitimate full-size off-road credibility: Multimatic DSSV spool-valve dampers, front and rear electronic locking differentials, 33-in Goodyear Wrangler Territory MT tires, ~11.2-in ground clearance, skid plates, and hill-descent control — Rebel/Tremor-class territory. AT4 provides a lighter package (2-in factory lift, terrain modes) and 4WD is optional across the lineup. 120V outlets and available roof rails support basecamp use; lack of a PowerBoost-scale inverter caps the score short of Ford's adventure setup.

Three bed lengths (5'8"/6'7"/8'2") ranging from 62.9 to 89.1 cu ft, fold-flat rear seats over a deep under-seat bin (with lockable option on Denali), MultiPro tailgate that eases loading long/awkward items, extensive OE and aftermarket rack/hitch/tonneau ecosystem, and available CarbonPro composite bed for wear resistance. Doesn't quite match F-150's Mobile Office worksurface as a gear-focused innovation, but the utility ceiling is very high.

The 2024 Sierra 1500 rides on GM's T1 full-size truck platform (in production since 2019) with leaf-sprung solid rear axle; body control is secure but never sporty for its ~5,000 lb mass and long wheelbase, trailing the coil-sprung Ram 1500 in ride/handling polish. Denali's optional Adaptive Ride Control (MRC) and AT4X's Multimatic DSSV dampers tighten body motions noticeably and lift the model average modestly above the Silverado 1500 twin thanks to broader luxury-trim availability.

Electric power steering is light-effort, accurate on-center, and stable at highway speeds, but feedback is essentially absent — a common trait among full-size trucks and unchanged from the Silverado 1500 setup. No trim-specific calibration meaningfully improves communication for 2024.

Four-wheel discs deliver linear, predictable pedal feel; instrumented 60–0 mph stops for 2024 Sierra/Silverado 1500 Crew Cab typically land in the ~131–138 ft range depending on tire package and mass. Fade resistance is solid for the class and pedal modulation is easy for towing.

The volume 5.3L V8 (355 hp) with GM's 10-speed automatic delivers refined, well-calibrated response with imperceptible Dynamic Fuel Management transitions; the optional 6.2L V8 (420 hp) adds real urgency and the updated 3.0L Duramax I6 turbo-diesel (305 hp / 495 lb-ft) is exceptionally smooth. The 2.7L TurboMax I4 (310 hp / 430 lb-ft), paired with an 8-speed for 2024, offers strong low-end torque but occasional low-rpm lag from standstill.

V8s produce a pleasant muted rumble under load and are quiet at cruise; the updated 3.0L Duramax is among the smoothest diesels in the class with minimal cabin intrusion. Denali and Denali Ultimate add acoustic laminated glass and extra insulation for a distinctly hushed cabin; the 2.7L TurboMax I4 is the roughest choice but takes a small volume share.

GM spec sheet lists the 2024 Sierra 1500 Crew Cab Short Box curb-to-curb turning diameter at 46.4 ft, matching the Silverado 1500 twin. Mid-pack for the full-size truck segment — tighter than F-150 SuperCrew but no rear-steer trickery to shrink it like the Hummer EV or Silverado EV.

2024 broadens the refreshed cockpit (13.4-in touchscreen, 12.3-in digital cluster, optional 15-in color head-up display) beyond Denali/AT4 down to SLE/Elevation/SLT — with retained physical HVAC knobs and Multi-Pro tailgate for easier cargo access; Denali and Denali Ultimate offer 16-way massaging front seats. Tall H-point delivers commanding forward sightlines and easy ingress with side steps. Pro trim carries over the older 8-in screen and pre-refresh cockpit, dragging the model average slightly.

Volume SLE/SLT/Elevation trims are capable, comfortable workhorses without much enthusiast appeal; the 6.2L V8 and AT4X off-road package inject genuine character (Multimatic DSSV dampers, front/rear e-lockers, 33-in Goodyear Wrangler Territory MT tires), and the new-for-2024 AT4X AEV Edition adds even more off-road hardware. Character is 'capable and refined' more than 'grin-inducing' — the enthusiast lineup is narrower than F-150 Raptor.

2024 is the mid-cycle refresh year — SLE and up now get the 13.4-inch Google built-in touchscreen and 12.3-inch digital cluster as standard (replacing the smaller 2023 screens), plus wireless CarPlay/Android Auto, GMC Pro Safety Plus (AEB, lane keep, blind-spot, adaptive cruise), LED lighting and heated cloth/leatherette seats. Notably richer tech content than a 2024 Ram Big Horn or F-150 XLT at similar money, though the base Pro remains a fleet-focused stripper without the big screens.

Buyers pay a real GMC premium in 2024: SLT opens near $52K and Denali Ultimate reaches ~$88K as-equipped, running roughly 5–10% above equivalent Silverados that share platform, engines and hardware. Denali Ultimate's open-pore wood/full-leather interior genuinely earns its price against Ram Limited, but mid-range Elevation/SLT trims offer weaker bang-for-buck than a comparably equipped F-150 XLT or Silverado LT.

Very broad 2024 lineup: seven trims (Pro, SLE, Elevation, SLT, AT4, AT4X, Denali, Denali Ultimate — Regular Cab dropped for MY2024), two cab styles (Double, Crew), three bed lengths (5.8, 6.6, 8.0 ft), four powertrains (2.7L TurboMax I4, 5.3L V8, 6.2L V8, 3.0L Duramax I6 diesel) and 2WD/4WD. Only the F-150 matches this configurability in the segment, and the Duramax diesel plus AT4X off-road spec remain meaningful differentiators against Tundra and Titan.

Sierra 1500 was a top-three full-size truck by US volume in 2024 — roughly 292K units, up modestly year-over-year on the strength of the refresh, trailing F-Series (~732K) and Silverado 1500 (~540K) but well ahead of Ram 1500, Tundra and Titan. Denali/Denali Ultimate carried an outsized share of transactions and helped Sierra outperform Ram in overall trajectory during 2024.

GMC's "Professional Grade" positioning and the Denali sub-brand carry genuine cachet in the full-size truck market, with above-average loyalty and consistently stronger resale than the mechanically identical Silverado. Denali Ultimate is the aspirational nameplate that pulls buyers up from Chevy and cross-shops against Ram Limited Longhorn and F-150 Platinum/Limited — the 2022 Denali Ultimate interior refresh continues to define the top of the segment in 2024.

As the mid-cycle refresh year, 2024 incentives moderated versus the late-2023 clearance push — GM ran typical Sierra 1500 cash allowances of $1,500–$4,000 plus subvented GM Financial APR/lease programs and competitive-conquest bonuses, with heavier stacking on holdover pre-refresh vehicles in early 2024 and on late-year 2024 Denali stock. Buyers routinely transacted $2–5K below MSRP on mainstream trims outside of AT4X and Denali Ultimate. Incentives lag Silverado (GMC protects margin) but remain buyer-friendly.

2024 is the mid-cycle refresh of the T1XX Sierra 1500 (current gen launched MY2019, 2022 Denali/Denali Ultimate interior overhaul): revised front fascias per trim, standard 13.4-inch Google built-in infotainment and 12.3-inch digital cluster on SLE+, expanded Super Cruise hands-free driving availability, and updated AT4X off-road hardware. Sheet-metal fundamentals are 5 model years old but tech, interior and driver-assist content are class-current with no imminent replacement (next-gen expected ~2028).

Reviewers welcomed the 2024 refresh, singling out the Denali Ultimate's segment-leading interior (Car and Driver called it the best cabin in a mainstream pickup for 2024), the Duramax diesel's real-world efficiency and torque, and Super Cruise as the class-best hands-free system. Sierra rarely wins all-around full-size shootouts (F-150 typically takes them, Ram wins ride/luxury) but frequently makes podium finishes and Consumer Reports/Edmunds top-picks. No NACTOY or MotorTrend Truck of the Year wins for the 2024 refresh.