The 2020 Traverse (particularly 3.6L V6 models) suffers from catastrophic timing chain/VLIM issues causing engine failure and transmission oil cooler leaks that can grenade the 9-speed automatic. The 2.0T is relatively trouble-free but rare in this generation.
3.6L V6 Timing Chain Stretch and VLIM Failure Leading to Engine Destruction
Occasional · high severity
Typical onset: 60,000-110,000 mi
Symptoms: Check engine light with P0008/P0011/P0014 camshaft correlation codes, Rough cold start with rattling noise for 2-3 seconds, Loss of power, especially under load, Catastrophic failure: bent valves, broken timing components, complete loss of compression
Fix: Timing chains alone run 12-16 labor hours, but many engines have already sustained valve/piston damage by diagnosis time. VLIM (Variable Length Intake Manifold) actuator shaft breaks inside, sending metal through oil system. Most cost-effective fix is used/reman long block. Timing chain job: $2,800-4,200. Engine replacement: 18-24 hours labor.
Symptoms: Transmission slipping, harsh shifts, or delayed engagement, Chocolate milk appearance in coolant reservoir (coolant in trans fluid), Pink fluid in coolant (trans fluid in coolant), Transmission overheating warning, Complete transmission failure if driven after coolant mixing
Fix: Oil cooler fails internally, allowing coolant and trans fluid to mix. Requires new cooler, complete transmission flush (often multiple flushes), coolant system flush. If driven after contamination starts, transmission internals are destroyed—needs rebuild or replacement. Cooler replacement caught early: 4-6 hours. Full transmission rebuild: 12-16 hours.
Transmission Torque Converter Shudder and 9-Speed Shift Quality Issues
Common · medium severity
Typical onset: 40,000-80,000 mi
Symptoms: Vibration/shudder during light acceleration at 25-45 mph, Harsh downshifts or hunting between gears, Delayed or clunky 1-2 upshift from stop, Temporary improvement after fluid change, then returns
Fix: GM issued multiple TSBs for 9-speed reprogramming and fluid changes using special friction modifier. Many require torque converter replacement (8-11 hours labor). Some cases need full valve body or complete transmission replacement if clutch packs are damaged. Start with fluid service using updated Mobil 1 LV ATF HP and TCM update ($250-400), but 40% need converter or transmission work within 12 months.
Estimated cost: $2,800-5,200
AC Condenser Puncture from Road Debris
Occasional · medium severity
Symptoms: AC blows warm air after highway driving, Refrigerant leak detected at condenser (front of radiator), Visible damage to condenser fins, System won't hold charge
Fix: Condenser sits vulnerable behind lower grille with minimal protection. Small rocks puncture thin aluminum fins. Requires condenser replacement, full AC evacuation/recharge, often receiver-drier replacement. 3-4 hours labor. Common enough that aftermarket now offers upgraded condensers with protective coating.
Estimated cost: $800-1,400
Fuel Pump Failure (Part of NHTSA Recall)
Occasional · high severity
Typical onset: 30,000-70,000 mi
Symptoms: Engine stalls while driving, no restart, Long crank/hard start when hot, Loss of power, bucking under acceleration, No start condition, fuel pump doesn't prime
Fix: Low-pressure fuel pump impeller fails (GM recall N202312780 for some VINs). Even non-recalled units fail at similar rates. Tank must be dropped for replacement. 4-5 hours labor. Check if your VIN is covered under recall before paying—GM will replace free if eligible.
Estimated cost: $900-1,500 (if not covered by recall)
Power Liftgate Strut and Motor Failure
Occasional · low severity
Typical onset: 60,000-100,000 mi
Symptoms: Liftgate won't open or close automatically, Grinding or clicking noise from liftgate motor, Liftgate drops quickly or won't stay up, Intermittent operation in cold weather
Fix: Liftgate struts wear internally, motor assemblies fail. Struts alone: 1.5 hours. Motor assembly: 2.5 hours. Many owners disable auto function and use manual operation to avoid $1,200 repair. Struts are $300-400/pair, motor assembly $600-900.
Estimated cost: $500-1,400
Owner tips
If buying a 3.6L V6, get pre-purchase inspection specifically checking for timing chain noise on cold start—walk away if present
Check transmission fluid color immediately on any used purchase; pink/milky = cooler leak, negotiate heavily or walk
Change transmission fluid every 45,000 miles with AC Delco or Mobil 1 LV ATF HP to extend 9-speed life
Verify fuel pump recall status by VIN at NHTSA.gov before purchase—free fix if covered
Budget $3,000-5,000 in years 5-7 for likely transmission or engine work on 3.6L models
Hard pass on 3.6L V6 models unless under powertrain warranty or priced $4,000+ below market to cover imminent engine/trans work; the 2.0T is safer but rare and gutless for a 3-row SUV.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
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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.
Consequence: Roof rail air bags that do not deploy as intended increase the risk of injury in a crash.
Remedy: Dealers will replace the harness connector to the roof rail air bags, free of charge. Owner notification letters were mailed on April 29, 2022. Owners may contact Buick customer service at 1-800-521-7300 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N212352140.
POWER TRAIN:AUTOMATIC TRANSMISSION · 21V817000
2021-10-18
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.
Consequence: A transmission fluid leak can cause a loss of drive power, increasing the risk of a crash. In addition, a leak in the presence of an ignition source increases the risk of a fire.
Remedy: Dealers will replace the screw and clip, and inspect for signs of contact with the transmission, free of charge. Owner notification letters were mailed November 29, 2021. Owners may contact Braun customer service at 1-800-488-0359.
TIRES · 21V115000
2021-02-25
General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT4, XT5, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, Traverse, GMC Yukon, Yukon XL, 2018-2021 Chevrolet Express, GMC Savana, 2019-2020 Chevrolet Blazer, Silverado 1500, GMC Acadia, Sierra 1500, and certain Continental tires sold to the aftermarket for various model year 2018-2021 vehicles. The affected tires were cured for too long during production.
Consequence: Over cured tires may develop a break in the sidewall resulting in sudden air loss or a belt edge separation which could lead to a tread/belt loss. Either condition can cause a loss of vehicle control, increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will inspect the tires, replacing them as necessary, free of charge. The recall began March 22, 2021. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N212329050.
TIRES · 20V684000
2020-11-05
General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, GMC Acadia and Chevrolet Traverse vehicles and 2020-2021 Chevrolet Silverado 1500, GMC Sierra 1500 vehicles. The vehicles may have been manufactured with Continental tires that were overcured.
Consequence: Overcured tires may experience a carcass break in the sidewall resulting in a sudden air loss or could develop a belt edge separation which could lead to partial or full tread/belt loss. Either condition increases the risk of a crash.
Remedy: GM will notify owners, and dealers will inspect vehicles and replace tires that have DOT number and production mold number combinations identified by Continental, free of charge. The recall began December 17, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202319030.
POWER TRAIN:AUTOMATIC TRANSMISSION · 20V668000
2020-10-29
General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse and GMC Terrain, 2018 Chevrolet Malibu, 2019-2020 Buick Encore, Buick Enclave, Cadillac XT4, Chevrolet Blazer and GMC Acadia, and 2020 Cadillac XT6 vehicles. The start/stop accumulator endcap may have missing bolts.
Consequence: Missing bolts on the start-stop accumulator endcap could result in a transmission oil leak and may progress to a loss of propulsion, increasing the risk of a crash. A transmission fluid leak in the presence of an ignition source may increase the risk of fire.
Remedy: GM will notify owners, and dealers will inspect the start-stop transmission accumulator and replace it if any bolts are missing, free of charge. The recall began December 15, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick Customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202313440.
General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, Cadillac XT6, Chevrolet Traverse, and GMC Acadia vehicles. The fuel pump's jet nozzle may have a plastic burr remaining from the manufacturing process, possibly causing a blocked nozzle and an insufficient fuel supply to the engine.
Consequence: Insufficient fuel supply can result in an engine stall without warning, increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will replace the fuel pump module. The recall began November 16, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick Customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202314760.
AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR · 20V446000
2020-07-30
General Motors, LLC. (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5 and XT6, Chevrolet Blazer, Silverado 1500, 2500 and 3500 and Traverse and GMC Acadia and Sierra 1500, 2500 and 3500 vehicles. The diffuser component of the Roof-Rail Air Bag (RRAB) inflator may not have been properly crimped to the inflator and could separate from the inflator during air bag deployment.
Consequence: If the diffuser separates from the inflator during deployment, RRAB performance may be degraded, increasing the risk of injury in a crash.
Remedy: GM will notify owners, and dealers will replace the suspect RRAB modules, free of charge. The recall began September 3, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is N202305380.
STRUCTURE:FRAME AND MEMBERS · 19V643000
2019-09-06
General Motors LLC (GM) is recalling certain 2020 Buick Enclave and Chevrolet Traverse vehicles. The right-hand frame rail in the
engine compartment may be cracked.
Consequence: A crack in the frame rail may reduce crash performance, increasing the risk of an injury.
Remedy: GM will notify owners, and dealers will inspect and, as necessary, replace the vehicle, free of charge. The recall began October 4, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438 or Buick customer service at 1-800-521-7300. GM's number for this recall is N192268310.
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