Of the 16 engine complaints filed for the 2024 Chevrolet Suburban,
here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
1 (100%)
25-50k
0 (0%)
50-75k
0 (0%)
75-100k
0 (0%)
100-125k
0 (0%)
125-150k
0 (0%)
150k+
0 (0%)
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted.
Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits
and driving conditions shift the curve as much as mileage alone.
What stands out
Engine accounts for 46% of every owner complaint on file for this vehicle — the dominant problem area across 4 categories tracked.
General Motors LLC (GM) is recalling certain 2021-2024 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles equipped with a 6
Engine failure increases the risk of a crash.
Fix: Dealers will inspect the engine, and as necessary, repair or replace the engine. For vehicles that pass inspection, dealers will add higher viscosity oil, install 6 oil fill cap, replace the oil filter, and update the owner's manual. Repairs will be performed free of charge. Owner notification letters were mailed June 18, 2025. Owners may contact Cadillac customer service at 1-800-333-4223, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is N252494000.
The failure pattern owners describe
Buyer takeaway: The 2024 Suburban L87 engine is experiencing multiple critical failures—sudden shutdown at highway speeds, internal bearing failure, and at least one engine fire—often at very low mileage. GM has issued recalls and higher-viscosity oil changes, but parts for the latest campaign (25V274000) aren't in stock, and some engines still fail even after the recall fix."
The L87 V8 engine in 2024 Suburbans is failing suddenly at highway speeds, sometimes under 13,000 miles. Drivers report total loss of power without warning—dash lights illuminate, the engine shuts down, and the vehicle goes into neutral or limp mode. These incidents happen on interstates at 65–80 mph, leaving owners coasting to the shoulder in dangerous traffic conditions. Some engines restart after multiple attempts but refuse to accelerate beyond 3000 rpm. Dealers confirm internal bearing failure; tow trucks haul vehicles 100–200 miles to dealerships, where replacement engines are backorder with no ETA.
GM issued Recall L87 (N252494000) for failing connecting rods and crankshafts. Vehicles that "pass" inspection receive higher viscosity 0W-40 oil, a new fill cap, and manual inserts—free—but this increases future oil change costs from $160 to $230. One owner calculated a $2,800 cost increase over 10 years. More concerning: one vehicle failed despite having had that higher-weight oil installed less than 10,000 miles prior, per manufacturer guidance.
The newer NHTSA Campaign 25V274000 addresses engine and engine cooling issues, but dealers report parts unavailable. Multiple owners say GM and dealers have refused to schedule work orders, stating parts are on backorder with no timeframe for repair. One vehicle also caught fire while parked at home, flames shooting onto the windshield; cause unknown. Another owner's post-recall vehicle still exhibits hesitation and hard shifting at 27,300 miles despite repair attempts.
Same Chevrolet Suburban engine reports on nearby years: 2021 · 2022 · 2023
Failure modes owners describe
Complete Engine Shutdown / Loss of Propulsion
Engine shuts down without warning while driving, often at highway speeds. Vehicle loses all power and throttle response. Incidents occur on interstates and highways where traffic is moving at 65–80 mph, creating immediate safety hazards.
When: Under 13,000 miles in some cases; incidents occurred on 12-24-24 and during highway driving at cruising speeds
Symptoms owners cite: Sudden loss of engine power at highway speed; No throttle response; Instrument cluster displays 'Press button to start engine' or 'conditions not correct for shift'; Vehicle goes into neutral or limp mode; Engine will not restart or restarts only after multiple attempts; Engine refuses to exceed 3000 rpm when it does restart
Repairs/costs cited: Long block engine replacement required; parts on backorder with no ETA. One owner waited 4 hours on highway for tow truck; vehicle towed 200 miles to dealership. Replacement engine withheld extended warranty if vehicle not recalled before build date.
Recalls/TSBs owners mention: GM Recall L87 (N252494000) and NHTSA Campaign 25V274000 (Engine and Engine Cooling). GM's initial remedy for 'passing' vehicles is higher viscosity 0W-40 oil, new oil fill cap, oil filter replacement, and manual insert. Recall parts not yet available at dealer; manufacturer confirmed parts unavailable.
Internal Engine Bearing Failure
Engine develops catastrophic internal bearing failure, confirmed by dealers. Failures occur very early in vehicle life and appear unrelated to oil viscosity changes mandated by recall.
When: Under 13,000 miles; one occurrence at approximately 4,000 miles
Symptoms owners cite: Complete engine seizure; No restart capability; Sudden loss of power at highway speeds
Codes mentioned:6.2L engine bearing failure
Repairs/costs cited: Long block engine replacement required. One tow truck driver reported his own 2023 Suburban in shop for identical issue. Another owner noted vehicle was previously inspected under L87 recall less than 10,000 miles prior, had been using higher-weight oil per manufacturer recommendation, but engine failed anyway.
After recall repair (higher viscosity oil), vehicle exhibits hesitation during acceleration and slams into gear, or persists with hesitation issues at higher mileage despite recall work. One case continues after recall repair attempt.
When: At approximately 4,000 miles (one case); at 27,300 miles after previous recall repair (another case)
Symptoms owners cite: Vehicle hesitates while accelerating; Vehicle slams into gear unexpectedly; Intermittent failure to accelerate as intended; Hesitation persists after recall repair
Repairs/costs cited: One vehicle was previously repaired under NHTSA Campaign 25V274000 but failure persisted; not repaired at second visit.
Recalls/TSBs owners mention: NHTSA Campaign 25V274000 (Engine and Engine Cooling). Recall parts unavailable at time of complaint in these cases.
Recall Parts Unavailability / Delayed Service
Owners notified of NHTSA Campaign 25V274000 engine recall, but parts required for repair not available at dealers. Manufacturer confirms parts unavailable. Multiple owners report manufacturer and dealer refusing to create work orders or schedule repairs pending parts arrival.
When: Multiple cases reported with no repair timeframe provided
Symptoms owners cite: Recall notification received; Dealer informs owner parts not available; Manufacturer confirms parts unavailable; Dealer refuses to create work order; No vehicles experienced failure in these specific cases
Repairs/costs cited: VIN tool confirms parts not available. Manufacturer stated reasonable amount of time for recall repair has been exceeded.
Recalls/TSBs owners mention: NHTSA Campaign 25V274000 (Engine and Engine Cooling). Parts not yet available; repair work orders not being created pending parts availability.
Synthesized from 16 NHTSA owner complaints — unverified consumer
allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting
9 most recent
engine
· filed 10/31/2024
While driving in the left lane of a two lane highway at highway speed of approx 65-70 mph the engine shut down. The instrument cluster said to “Press button to start engine”. I had no power. There was no throttle response. Luckily I was on a slight decline and was able to safely change lanes by coasting into the right lane then the shoulder. I was able to put the vehicle into park. The vehicle…
engine
· filed 10/25/2025
I took my 2024 Chevrolet Suburban to get repairs associated with GM safety recall N252494000 - L87 Engine Loss of Propulsion. My vehicle "passed" the test, so the "correction" employed by GM is that "vehicles that pass inspection will be provided a higher viscosity oil, which will also require a new oil fill cap, an oil filer replacement, and an owner's manual insert." All of this was done free…
engine
· filed 09/22/2025
The contact owns a 2024 Chevrolet Suburban. The contact was notified of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The local dealer was made aware of the issue and confirmed that parts were not yet available. The contact requested a work order on the vehicle for the recall repair and the dealer refused. The…
engine
· filed 09/05/2025
The contact's son owns a 2024 Chevrolet Suburban. The contact stated that his son had received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The contact's son had been calling the local dealer and was informed that parts were not yet available for the recall repair. The contact was informed by his son stated that the manufacturer had exceeded a reasonable amount of…
engine
· filed 07/10/2025
See attached document for complaint.
engine
· filed 06/23/2025
The contact owns a 2024 Chevrolet Suburban. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet…
engine · 4,000 mi
· filed 06/12/2025
The contact owns a 2024 Chevrolet Suburban. The contact received notification of NHTSA Campaign Number: 25V274000(Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The contact stated that while driving at an undisclosed speed and depressing the accelerator pedal, the vehicle intermittently failed to accelerate as intended before slamming into gear. The…
engine
· filed 05/12/2026
On May 2, 2026, while the vehicle was in operation, the engine suddenly shut off without warning. At the time of failure, the instrument panel remained illuminated; however, the vehicle would not restart. In an effort to resolve the issue, the battery was replaced, but this did not correct the problem. The vehicle was then towed to a local Chevrolet dealership for further inspection and…
engine
· filed 04/18/2025
I parked at my home, approximately 5 minutes after arriving home my grandson ran in yelling papa your car is on fire. The engine was on fire, shooting flames onto the windsheild. The cause of fire is unknown at this time.
Had engine trouble with your 2024 Chevrolet Suburban?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2024 Chevrolet Suburban?
It's a meaningful issue. 16 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $3,100.
At what mileage does the engine typically fail?
Based on the 16 complaints filed, engine issues most often appear around 15,650 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
Yes — 1 active recall(s) cover engine issues on this vehicle. Recall fixes are always free regardless of mileage or warranty status. Use the VIN decoder at the top of the page to check if your specific vehicle is affected.
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2024/Chevrolet/Suburban.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.