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Chevrolet · Known Issues

2023 Chevrolet Suburban Problems: 3 Known Issues

2023 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026

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Issue summary

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2023 Chevrolet Suburban has 3 documented known issues, with 1 rated critical. The most serious is AFM/DFM Lifter Failure (5.3L/6.2L V8) ($1,500-$4,000 repair). Across all issues with published estimates, repair costs range from $50 to $4,000. DIY maintenance guides at au7o.io.

In This Article

  • Suburban Engine1
  • Suburban Steering1
  • Suburban Drivetrain1
  • Recalls15
  • FAQ
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In This Article

  • Engine1
  • Steering1
  • Drivetrain1
  • Recalls15
  • FAQ

All 3 Known Issues

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ALL YEARS20252024202320222021202020192018201720162015201420132012201120102009200820072006200520042003200220012000199919981997199619951994

On the 2007-2025 Chevrolet Suburban, the Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) systems on the 5.3L and 6.2L V8 engines deactivate cylinders to save fuel by collapsing hydraulic valve lifters. These lifters have a complex locking pin mechanism that fails, causing the lifter to collapse and the affected cylinder to misfire. A collapsed lifter can also damage the camshaft lobe it rides on, turning a $300 lifter into a $3,000 camshaft and lifter replacement. The issue affects 2007+ Suburbans and is one of the most complained-about GM V8 problems. GM switched from 4-cylinder AFM to 17-pattern DFM in 2019, but lifter failures continue.

This issue also affects: Buick LeSabre, Buick Park Avenue, Buick Cascada

Common Symptoms

  • Engine misfire on one or more cylinders
  • Ticking or tapping noise from engine
  • Check engine light with misfire codes
  • Rough idle
  • Reduced engine power
  • P0300 random misfire or specific cylinder misfire code

How to Fix

Replace the failed lifter(s) and inspect the camshaft for damage. A single-side lifter replacement (one bank of 8 lifters) costs $1,500-$2,500 including labor. If the camshaft is damaged, add $500-$1,000 for a new cam and installation. Many owners opt to replace all 16 lifters and delete the AFM/DFM system with an AFM delete kit ($200-$400) and a custom tune that disables cylinder deactivation. This eliminates the root cause but requires a tuner ($400-$600). GM range device ($300) is a plug-in alternative that keeps all cylinders active without a tune.

Typical repair cost:$1,500 - $4,000

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Community Reported
High Confidence

On the 2015-2025 Chevrolet Suburban, the 2015+ Suburban uses an electronic steering column lock that can malfunction, causing a clicking noise from the steering column, failure to recognize the key fob, or preventing the vehicle from starting. The electronic lock module replaces the traditional key-cylinder lock and communicates with the body control module (BCM) to verify the key fob is present before allowing the engine to start. When the lock module fails, it may click repeatedly without unlocking, or it may not engage at all, leaving the steering unlocked even when the vehicle is off.

This issue also affects: GMC Yukon XL, Chevrolet Bolt EV, Chevrolet Malibu

Common Symptoms

  • Rapid clicking noise from steering column
  • Vehicle will not start — "Steering Column Lock" message
  • Key fob not detected despite fresh battery
  • Steering wheel does not lock when vehicle is off
  • Intermittent no-start condition
  • Multiple clicks before engine starts

How to Fix

The steering column lock actuator module needs replacement ($150-$400 for parts, $200-$400 labor). The module is located inside the steering column and requires partial disassembly to access. A scan tool is needed to program the new module to the BCM after installation. In some cases, a BCM software update at the dealer resolves the clicking without hardware replacement. If the vehicle will not start due to a failed lock module, a tow to the dealer is required — there is no manual override.

Typical repair cost:$150 - $800

Research This Issue

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Community Reported
Medium Confidence

On the 2000-2025 Chevrolet Suburban, the transfer case on the 4WD Suburban develops fluid leaks from the front and rear output shaft seals, the input shaft seal, or the case halves where the case splits. The NP246 (half-ton) and NP261/NP263 (heavy-duty) transfer cases all share this tendency. Low transfer case fluid causes the internal clutch pack to overheat and burn, leading to expensive internal damage. The rear output seal is the most common leak source, and the leak often drips onto the exhaust, creating a burning fluid smell. Many owners do not realize the transfer case has its own fluid that needs periodic changing.

This issue also affects: GMC Yukon XL

Common Symptoms

  • Fluid dripping from transfer case area
  • Burning fluid smell from under vehicle
  • Grinding or whining noise from transfer case
  • Difficulty shifting between 2WD and 4WD
  • Transfer case overheating
  • Fluid stain on driveway near center of vehicle

How to Fix

Replace the leaking seal(s) — the rear output shaft seal is $10-$20 for the part and 1-2 hours of labor ($100-$250). The front output seal is similar but harder to access. If the case halves are leaking, resealing requires splitting the case ($400-$800 labor). Check the transfer case fluid level every oil change and change the fluid every 50,000 miles with the GM-specified Auto-Trak II (NP246) or DEXRON VI (NP261/NP263). Low fluid is a transfer case killer — check before it is too late.

Typical repair cost:$50 - $1,000

Research This Issue

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Community Reported
Medium Confidence
NHTSA Recalls15 recalls

ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL

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 6.2L V8 gas engine. The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure.

Campaign #25V27400024/04/2025

EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE

General Motors, LLC (GM) is recalling certain 2020-2023 Cadillac CT4 and CT5; 2021-2023 Buick Envision; and 2022-2023 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles. The daytime running lights (DRLs) may not deactivate when the headlights are on. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."

Campaign #22V90300008/12/2022

SUSPENSION:REAR

General Motors, LLC (GM) is recalling certain 2023 Cadillac Escalade, Escalade ESV, Chevrolet Suburban, Chevrolet Tahoe, GMC Yukon, and Yukon XL vehicles. The rear suspension outer control arm bolts may not have been properly heat-treated, which can cause the bolts to break.

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Other Chevrolet Models

Chevrolet Silverado 150078Chevrolet Corvette59Chevrolet Equinox58Chevrolet Malibu44Chevrolet Camaro40Chevrolet Traverse37

Frequently Asked Questions

What are the most common Chevrolet Suburban problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2023 Chevrolet Suburban has 3 documented issues. The most frequently reported are: AFM/DFM Lifter Failure (5.3L/6.2L V8), Steering Column Lock and Click Noise, Transfer Case Fluid Leak. Of these, 1 is rated critical and should be addressed promptly.

Is the Chevrolet Suburban reliable?

The 2023 Chevrolet Suburban has 3 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: AFM/DFM Lifter Failure (5.3L/6.2L V8). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Chevrolet Suburban problems?

Repair costs for known Chevrolet Suburban issues range from $50 to $4,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, AFM/DFM Lifter Failure (5.3L/6.2L V8), typically costs $1,500-$4,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2007-2025 Chevrolet Suburban AFM/DFM Lifter Failure (5.3L/6.2L V8)?

The Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) systems on the 5.3L and 6.2L V8 engines deactivate cylinders to save fuel by collapsing hydraulic valve lifters. These lifters have a complex locking pin mechanism that fails, causing the lifter to collapse and th… Repairs typically run $1,500-$4,000. Severity: high.

What is the 2015-2025 Chevrolet Suburban Steering Column Lock and Click Noise?

The 2015+ Suburban uses an electronic steering column lock that can malfunction, causing a clicking noise from the steering column, failure to recognize the key fob, or preventing the vehicle from starting. The electronic lock module replaces the traditional key-cylinder lock and… Repairs typically run $150-$800. Severity: medium.

Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

Data compiled from NHTSA recalls, manufacturer TSBs, automotive forums, and AI-assisted research. No aggregated owner-report counts available for this vehicle yet.

Campaign #23V64200020/09/2023

SEAT BELTS:CRITICAL FASTENERS

General Motors, LLC (M) is recalling certain 2021-2022 Cadillac Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, GMC Yukon, and Yukon XL vehicles equipped with third-row seats. The rivet that retains the buckle to the mounting bracket in the left or right side third-row seat belt buckle assembly may have been improperly formed.

Campaign #22V61700011/08/2022

POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE

General Motors, LLC (GM) is recalling certain 2022 Chevrolet Tahoe, Chevrolet Suburban, GMC Yukon, GMC Yukon XL, Cadillac Escalade, and Cadillac Escalade ESV vehicles equipped with 10 Speed Transmission with ETRS (Electronic Transmission Range Select). The transmission control valve may fail and lock up the rear wheels.

Campaign #26V08500013/02/2026

+ 10 more recalls. Check all on NHTSA.gov

Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.

What is the 2000-2025 Chevrolet Suburban Transfer Case Fluid Leak?

The transfer case on the 4WD Suburban develops fluid leaks from the front and rear output shaft seals, the input shaft seal, or the case halves where the case splits. The NP246 (half-ton) and NP261/NP263 (heavy-duty) transfer cases all share this tendency. Low transfer case fluid… Repairs typically run $50-$1,000. Severity: medium.