2021-2024 Tahoe recalled for L87 engine failure, brake warning defect & wheel lock-up. Find out if your Tahoe qualifies for a California lemon law buyback.
You bought a Chevrolet Tahoe because it is one of the most capable full-size SUVs on the road — room for the family, a tow rating, and a 6.2L V8 that felt like it would run forever. Then one day, at highway speed, the engine quits. No warning. Just silence, a dying speedometer, and traffic closing in behind you. Or maybe your Tahoe sits dead in the driveway — again — because the battery went flat overnight for the third time. Or the brake warning light you were counting on to tell you something was wrong never came on, even as the fluid was quietly leaking away.
The 2021–2024 Chevrolet Tahoe T1XX generation carries a serious and documented defect record. NHTSA formally recalled 44,802 Tahoe units (model years 2021–2024) under campaign 25V274 for L87 6.2L engine bearing and crankshaft manufacturing defects that can cause sudden, complete engine failure at speed. A separate recall (24V674) covers 134,854 Tahoe units — the largest single recall for this generation — because the electronic brake control module software cannot detect a brake fluid leak and warn the driver as required by federal safety standards. A third recall (26V085) covers 2022 model year Tahoes for rear wheel lock-up caused by a worn transmission control valve. These are not minor software glitches; these are safety failures that GM was forced by federal regulators to recall.
If your Tahoe has been back to the dealer more than once for engine problems, brake issues, transmission faults, steering complaints, or persistent infotainment failures, California's lemon law may entitle you to a replacement vehicle or a buyback. This page explains what the defects are, what symptoms to watch for, and what to do if your dealer keeps telling you they can't find the problem.
The issues owners report most, ranked by severity — each one verified against a cited NHTSA source.
Engine knocking or sudden power loss; check engine light; vehicle stalls or loses all propulsion at speed; oil consumption; metal debris in oil; engine seizure requiring full replacement
Brake fluid warning light fails to illuminate even when brake fluid is leaking; reduced braking performance discovered without warning; vehicle may be driven with critically low brake fluid
Transmission harsh shifting or sudden downshift; rear wheels lock up momentarily while driving; loss of vehicle control; may be accompanied by transmission warning light or limp mode
Steering suddenly becomes very heavy, especially at low speeds; power steering assist cuts out with no warning at startup or while driving; difficulty turning the wheel
Infotainment touchscreen goes black or blank; audio drops out or goes to maximum volume at startup; system repeatedly reboots or freezes; CarPlay/Android Auto, Bluetooth, navigation, and touch input stop working
Power liftgate opens on its own when standing near vehicle with key fob; battery repeatedly goes dead (discharged) especially after recall N222386380 software update; liftgate malfunctions / fails to operate
A settled Margarian Law case on this exact model, published with the actual settlement math.
Open any defect for the symptoms and why it matters for a California lemon-law claim. Each is tied to a cited NHTSA source.
Engine knocking or sudden power loss; check engine light; vehicle stalls or loses all propulsion at speed; oil consumption; metal debris in oil; engine seizure requiring full replacement
Engine failure causing sudden loss of propulsion at highway speed is a safety defect directly impairing use. 44,802 Tahoe units affected. With 14,332 complaints alleging loss of propulsion across the platform and an engine-replacement remedy, repeat repair attempts are highly likely, supporting lemon-law nonconformity arguments.
NHTSA-directed: dealer inspects engine; vehicles failing inspection receive engine repair or full replacement (no charge). Passing vehicles receive higher-viscosity oil service, new oil fill cap, and oil filter.
Brake fluid warning light fails to illuminate even when brake fluid is leaking; reduced braking performance discovered without warning; vehicle may be driven with critically low brake fluid
FMVSS 135 noncompliance recall. 134,854 Tahoe units affected – among the highest-volume recalls for this generation. Though GM reports vehicles still meet stopping-distance requirements, the failure to warn of fluid loss is a latent safety defect; owners who experienced brake issues before the OTA update may have a nonconformity claim.
OTA software update to the Electronic Brake Control Module (eBCM) or dealer reprogramming. No charge.
Transmission harsh shifting or sudden downshift; rear wheels lock up momentarily while driving; loss of vehicle control; may be accompanied by transmission warning light or limp mode
Momentary rear wheel lockup at speed is a serious safety defect. 26V085 covers gasoline Tahoes; companion 24V797 covers diesel Tahoes (3,858 units). Combined scope signals systemic transmission control valve vulnerability. Transmission limiting to fifth gear as interim remedy may constitute a drivability impairment if not corrected with a full valve replacement.
Dealer installs new TCM (Transmission Control Module) software that monitors valve wear and limits transmission to fifth gear if excess wear is detected approximately 10,000 miles before lockup could occur. No charge.
Steering suddenly becomes very heavy, especially at low speeds; power steering assist cuts out with no warning at startup or while driving; difficulty turning the wheel
Sudden loss of power steering assist without warning is a classic safety-impairment nonconformity. 26,847 total vehicles across the 2021 T1XX family. Owners who brought vehicle in for steering complaints before OTA delivery may have documented repair attempts.
Power steering module software update via OTA (for eligible vehicles that accepted terms) or dealer reprogramming. No charge.
Infotainment touchscreen goes black or blank; audio drops out or goes to maximum volume at startup; system repeatedly reboots or freezes; CarPlay/Android Auto, Bluetooth, navigation, and touch input stop working
Infotainment failures affect safety systems (backup camera, forward-collision alerts routed through screen) and substantially impair use/value. Warranty extension to 8yr/150k miles under TSB 15-322-25 signals GM acknowledgment of widespread defect. Multiple dealer visits for the same condition strongly supports lemon-law nonconformity. NHTSA complaint data shows electrical/infotainment as a leading complaint category for this generation.
Reprogramming with latest software as first option; replacement of head unit if reprogramming fails. GM extended warranty to 8 years / 150,000 miles for qualifying failures under bulletin 15-322-25.
Power liftgate opens on its own when standing near vehicle with key fob; battery repeatedly goes dead (discharged) especially after recall N222386380 software update; liftgate malfunctions / fails to operate
Recurring dead battery and spontaneous liftgate opening substantially impair use. Issue was introduced or worsened by a prior GM recall remedy (N222386380), which strengthens argument that GM has been unable to remedy the vehicle within a reasonable number of attempts. Module replacement and OTA BCM update are two distinct repair events.
Replace K171 Hands Free Liftgate module. BCM calibration updated via OTA quarterly release to reduce battery draw.
Engine stalls unexpectedly while driving; check engine light illuminates; OnStar notification of DTC; vehicle appears to run out of fuel despite adequate fuel level; rough engine operation
Unexpected engine stall while driving is a safety-relevant drivability defect. 14,939 total vehicles across the 2021 T1XX family. Repeat stalling events before recall remedy could constitute nonconformity. Owners who experienced stalling before dealer performed module replacement have documented repair history.
Dealer replaces the fuel pump power control module at no charge.
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Unique internal hardware in transmissions produced in a specific build window (approx. spring–summer 2022) accelerates wear in the transmission control valve, which can cause loss of pressure and rear wheel lockup during a downshift from eighth gear.
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The connecting rod and/or crankshaft engine components in certain vehicles equipped with the 6.2L V8 L87 engine may have manufacturing defects (sediment in oil galleries; out-of-spec crankshaft dimensions) that lead to engine damage and engine failure.
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Mismatch in eBCM software and calibrations causes the system to fail to detect and notify of a brake fluid leak as required by FMVSS No. 135.
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Rear suspension outer control arm bolts may not have been properly heat-treated, which can cause the bolts to fracture.
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BCM software under certain pre-conditions fails to deactivate daytime running lights (DRLs) when headlamps are activated, violating FMVSS lighting requirements.
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Supplier manufacturing defect in the fuel pump power control module may cause the fuel pump to fail or operate intermittently, interrupting fuel flow to the engine.
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Software issue in the power steering module may cause loss of power steering assist at startup or while driving, requiring significantly increased steering effort particularly at low speeds.
Every item below comes from this vehicle's documented defects. The more you recognize, the more a free case review is worth your time.
California's Song-Beverly Consumer Warranty Act — commonly called the lemon law — protects buyers and lessees of new vehicles that have a defect covered by the manufacturer's warranty which the dealer has been unable to fix in a reasonable number of attempts.
You may qualify for a replacement vehicle or a full buyback (purchase price, taxes, and fees, minus a mileage offset for use before the problem first appeared) if:
These are general thresholds. The specific facts of your situation — what the defect is, how many times you went back, how GM responded — determine whether you have a claim. This is not legal advice. Consulting with a California lemon law attorney is the only way to know whether your specific Tahoe qualifies. Initial consultations are typically free, and attorneys who handle Song-Beverly cases are generally paid by the manufacturer if you win — not out of your pocket.
“Could not duplicate” doesn't mean the defect isn't real. Here's exactly what to do to protect a potential California lemon-law claim.
Document the moment it happens. Photos, video, and screenshots of any warning lights — with the date and the mileage.
Get a repair order every visit — even “found nothing.” That paperwork is the foundation of a claim.
Check your VIN at nhtsa.gov/recalls. Note any recall that has no available remedy yet.
Track your out-of-service days. California law counts the cumulative days your vehicle spends in the shop.
Keep loaner & rental records. Alternate-transport paperwork during long repairs matters.
Save everything in one place. Symptoms, dates, repair orders, and every repeat visit — the intermittent ones especially.
Intermittent problems are the most common reason dealers mark a repair order 'unable to duplicate' or 'no trouble found.' That notation does NOT reset the clock on your lemon-law rights — it counts as a repair attempt. Here is how to protect yourself:
1. Write it down before you go. Before every dealer visit, write out exactly what you experienced: date, time, road conditions, speed, what warning lights appeared (or did not appear), and how long the symptom lasted. Hand the dealer a written description and ask them to attach it to the repair order verbatim.
2. Demand the repair order reflect your complaint. The repair order must record your complaint in your words, not just 'customer states no start.' If the RO does not match what you reported, correct it before you sign.
3. Ask specifically about open recalls. For a 2021–2024 Tahoe with a 6.2L engine, ask whether NHTSA recall 25V274 has been performed and documented. For brake concerns, ask about 24V674. For transmission concerns on a 2022 model, ask about 26V085. Get the recall completion documented on the repair order.
4. Keep every repair order and every loaner record. California's Song-Beverly Act looks at the number of repair attempts for the same or substantially similar defect, and at the total number of days the vehicle has been out of service. Days in a loaner count.
5. Do not let the dealer test-drive only. For an L87 engine knock complaint, the recall protocol requires an active engine inspection — not just a road test. If the dealer tells you 'we drove it and it ran fine,' ask for the inspection results in writing.
6. If the problem returns after a software-only fix, go back. Engine knock that returns after an oil-change remedy, brake warning issues that persist after an OTA update, or infotainment reboots after reprogramming are all additional repair attempts. Each visit to the dealer strengthens your record.
The 2021–2024 Chevrolet Tahoe has a defect profile that is unusually serious for a flagship family SUV. The L87 engine recall (25V274) is not a software glitch — it is a manufacturing defect that can destroy an engine at highway speed. NHTSA logged over 14,000 loss-of-propulsion complaints before the recall was even issued, and its investigation into failures outside the recall's build window is still open. The brake warning recall (24V674) affected 134,854 Tahoe units — more than any other single recall for this generation — and involves a FMVSS noncompliance: the federal brake-fluid warning standard was not met.
What makes this generation particularly difficult for owners is the combination: engine, brakes, transmission, steering, and infotainment failures can all appear on the same vehicle, making it genuinely hard to use and trust. If your Tahoe has been to the dealer repeatedly for any of these issues without a lasting fix, California law gives you options.
— The Margarian Law team
If your 2021–2024 Chevrolet Tahoe has been to the dealer more than once for an engine problem, brake concern, transmission fault, steering issue, or infotainment failure — and the problem keeps coming back — you may have a lemon law claim under California law. The manufacturer, not you, is responsible for making this right. Contact Margarian Law for a free case evaluation to find out whether your Tahoe qualifies for a buyback or replacement.
Yes. NHTSA safety recall 25V274 covers 2021–2024 Chevrolet Tahoe models equipped with the 6.2L V8 L87 engine. Manufacturing defects in the connecting rods and crankshaft components — including sediment contamination in oil galleries and out-of-specification crankshaft dimensions — can cause engine bearing damage, engine failure, and sudden loss of propulsion while driving. 44,802 Tahoe units are included. The remedy is a dealer engine inspection; vehicles that fail inspection receive engine repair or full replacement at no charge. Owner notification began June 2025. If you own a 2021–2024 Tahoe with the 6.2L engine, check your VIN at nhtsa.gov or contact your dealer to confirm recall status.
An engine that loses all power at highway speed is a safety emergency and, depending on your model year and engine, may be covered by recall 25V274 (L87 6.2L, MY 2021–2024). Have the vehicle towed to a Chevrolet dealer — do not drive it if the engine is knocking or has seized. At the dealer, specifically ask them to perform the 25V274 recall inspection. Request a copy of the repair order that documents your complaint and the inspection results. If the dealer tells you nothing was found, keep that repair order: it is a documented repair attempt. If the problem recurs after the dealer's fix, contact a California lemon law attorney — multiple attempts to fix an engine failure that affects safety may qualify for a buyback or replacement under California's Song-Beverly Act.
Whether any specific 2021 Tahoe qualifies as a lemon depends on its individual repair history. What is documented is that the 2021 Tahoe generation carries multiple active or former safety recalls, including the L87 engine recall (25V274) for loss of propulsion, the eBCM brake warning failure recall (24V674, 134,854 units), a power steering assist loss recall (21V455), and a fuel pump stall recall (21V739). NHTSA received 415 total consumer complaints for the 2021 model year alone, with engine and powertrain failures as the leading category. If your 2021 Tahoe has required two or more repairs for the same safety defect, or has spent 30 or more cumulative days out of service, it may qualify under California's lemon law. A free consultation with a lemon law attorney is the fastest way to know.
A software mismatch in the electronic brake control module (eBCM) on 2021–2024 Chevrolet Tahoe models can prevent the brake fluid warning light from illuminating when brake fluid is leaking. This is a FMVSS No. 135 noncompliance — the federal safety standard requires that warning light to alert the driver before the fluid level becomes critically low. NHTSA issued safety recall 24V674 covering 134,854 Tahoe units for this exact defect. The remedy is an eBCM software update, available over-the-air (OTA) for eligible vehicles or at the dealer at no charge. If your Tahoe later had brake problems that you believe went unwarned, document the incident and the repair history — this may be relevant to a California lemon law evaluation.
Yes. GM issued a warranty extension specifically for this problem. Technical Service Bulletin 15-322-25 extends the limited warranty on the CP1 and Gen 3.1 (RPO IOK) infotainment head unit to 8 years or 150,000 miles from the original in-service date, covering black or blank screens, loss of audio, repeated reboots, and inability to use CarPlay, Android Auto, navigation, Bluetooth, or the touchscreen. The bulletin applies to 2021–2024 Chevrolet Tahoe. The first step is reprogramming with the latest software; if that fails, the head unit is replaced at no charge. If your dealer has tried to fix the screen more than once without lasting success — or told you the warranty does not cover it — California lemon law may apply, because persistent infotainment failures can impair the use and value of the vehicle.
Under California's Song-Beverly Consumer Warranty Act, if GM cannot repair a covered defect in your Tahoe within a reasonable number of attempts, you are entitled to either a replacement vehicle of comparable value or a full refund — your purchase price, taxes, registration, and financed charges, minus a mileage offset calculated from the miles on the vehicle when the defect first appeared (not from when you finally got GM to acknowledge it). The process typically starts with a formal demand to GM; if GM refuses or makes an inadequate offer, your attorney can pursue the claim in court. Importantly, if you win, GM — not you — pays your attorney's fees under Song-Beverly. This means qualified lemon law attorneys represent clients at no upfront cost. Document every repair visit, keep every repair order, and contact a lemon law attorney as soon as you believe your Tahoe may qualify.
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