2021 Chevrolet Traverse Problems: 4 Known Issues
2021 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated November 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Chevrolet Traverse has 4 documented known issues. None of the listed issues is rated critical; this is not a complete reliability assessment. Across all issues with published estimates, repair costs range from $75 to $1,700. DIY maintenance guides at au7o.io.
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All 4 Known Issues
NHTSA Recalls13 recalls
POWER TRAIN:DRIVELINE:DRIVESHAFT
General Motors, LLC (GM) is recalling certain 2023 Chevrolet Blazer and Traverse vehicles. The left-side half-shaft assemblies may be missing a retaining ring.
POWER TRAIN:AUTOMATIC TRANSMISSION
General Motors, LLC (GM) is recalling certain 2023 Cadillac XT6, GMC Acadia, Chevrolet Blazer, Traverse, and 2022-2023 Cadillac XT5 vehicles. The transmission may have been built with an incorrect sun gear, which can result in the driver-side half-shaft disengaging from the transmission.
AIR BAGS:SIDE/WINDOW:CURTAIN
General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Traverse and 2021-2022 Buick Enclave vehicles. The harness connector to the left or right side roof rail air bag may have incompatible electrical terminals, which could prevent the air bags from deploying in a crash.
POWER TRAIN:AUTOMATIC TRANSMISSION
Braun Corporation (Braun) is recalling certain 2020-2021 Chevrolet Traverse wheelchair accessible vehicles with Power In-floor Ramp conversion. The screw and clip that hold the inner wheel-well plastic shroud in place may chafe against the transmission case, possibly resulting in a transmission fluid leak.
AIR BAGS:SENSOR:FRONTAL IMPACT
General Motors, LLC (GM) is recalling certain 2021 Chevrolet Traverse and Buick Enclave vehicles. During service by dealers, certain vehicles may have received incorrect air bag calibration software that may affect frontal airbag deployment.
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Frequently Asked Questions
What are the most common Chevrolet Traverse problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Chevrolet Traverse has 4 documented issues. Documented issues include: Sunroof/Moonroof Drain Clog Causing Interior Water Leak from Headliner, A/C Condenser / Refrigerant Line Leak Causing Loss of Cooling, Front Exhaust Pipe Mounting Bracket Weld Fracture — Rattle, Exhaust Leak and Lean Codes. None are rated critical, but regular maintenance is recommended.
Is the Chevrolet Traverse reliable?
The 2021 Chevrolet Traverse has 4 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. None of the matching records is rated critical; this is not a complete reliability assessment. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Chevrolet Traverse problems?
Repair costs for known Chevrolet Traverse issues range from $75 to $1,700, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2018-2023 Chevrolet Traverse Sunroof/Moonroof Drain Clog Causing Interior Water Leak from Headliner?
The moonroof feeds rainwater into a rain tray above the headliner that drains through tubes routed down the pillars. Debris clogs the tubes (and tray outlets), so the tray overflows and water runs down the inside of the headliner, dripping from the overhead console, dome/map ligh… Repairs typically run $150-$1,700. Severity: medium.
What is the 2018-2022 Chevrolet Traverse A/C Condenser / Refrigerant Line Leak Causing Loss of Cooling?
Traverse owners widely report the air conditioning blowing warm air after only a year or two of use, caused by refrigerant escaping the system. GM bulletin PIT5710 instructs dealers to leak-check the condenser and, if no external leak is found, inspect the rear auxiliary A/C evap… Repairs typically run $500-$1,400. Severity: medium.
What is the 2018-2022 Chevrolet Traverse Front Exhaust Pipe Mounting Bracket Weld Fracture — Rattle, Exhaust Leak and Lean Codes?
GM PIP5681C documents a possible exhaust bracket/weld failure on specified 2018-2022 LFY Traverse applications. Noise and mixture or catalyst codes can accompany the leak, but do not establish it without inspection. The adjacent Bank 1 pipe can also be damaged. Severity: medium.
What is the 2018-2023 Chevrolet Traverse Loose Front Cradle Brace Causing Front-End Clunk and Rattle Over Bumps?
A very large share of second-generation Traverse front-end noise complaints that get misdiagnosed as struts, control arm bushings or sway bar links are actually the cradle brace — a flat bar bolted across the front subframe with a single bolt at each end. When the brace is loose,… Repairs typically run $75-$300. Severity: low.
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.