2020 Chevrolet Suburban problems, complaints & recalls
Most-reported problem areas: Engine (9) · Power Train (8) · Steering (4)
🧭 Reliability snapshot
Compared against other Chevrolet Suburban model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (4)
Power Train:transfer Case (4-Wheel Drive) 2026-05-07 · campaign 26V289000 · 66 vehicles ⚠ DO NOT DRIVE
Defect: General Motors, LLC (GM) is recalling certain 2026 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, and GMC Sierra 1500, Yukon, and Yukon XL vehicles with four-wheel (4WD) or all-wheel drive (AWD), and certain 2015-2020 Suburban, Escalade, Escalade ESV, Yukon, Yukon XL, and Tahoe vehicles. A component missing from the drivetrain transfer case may cause the front and/or rear wheels to lock up without warning to the driver.
Risk: Front or rear wheel lockup increases the risk of a crash.
Fix: Owners are advised not to drive their vehicle until the remedy is completed. Dealers will inspect and, if necessary, replace the transfer case assembly, free of charge. Owner notification letters were mailed May 18, 2026. Owners may contact GMC customer service at 1-800-462-8782, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-333-4223. GM's number for this recall is N262557620. Vehicle Identification Numbers (VINs) involved in this recall became searchable on
Tires 2021-02-25 · campaign 21V115000 · 33,838 vehicles
Defect: 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.
Risk: 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.
Fix: 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.
Fuel System, Gasoline:delivery:fuel Pump 2019-11-21 · campaign 19V837000 · 502 vehicles
Defect: General Motors LLC (GM) is recalling certain 2020 Cadillac Escalade, Escalade ESV, Chevrolet Camaro, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles. The fuel pump may be missing a pressure regulator, allowing for over-pressurization of the fuel system.
Risk: Over-pressurization can crack the fuel pump and cause leaks, increasing the risk of a fire in the presence of an ignition source.
Fix: GM will notify owners, and dealers will replace the fuel pump, free of charge. The recall began December 18, 2019. Owners may contact Cadillac customer service at 1-800-333-4223, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-888-988-7267. GM's number for this recall is N192283991.
Service Brakes 2019-10-24 · campaign 19V761000 · 652,967 vehicles
Defect: General Motors LLC (GM) is recalling certain 2015-2020 Chevrolet Suburban, Tahoe, and GMC Yukon, and 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles equipped with a 5.3-liter engine, a 3.08-ratio rear axle and four-wheel drive. If a wheel-speed sensor fails, while the vehicle is traveling between 41 and 60 mph in four-wheel or automatic mode, the Electronic-Brake Control Module (EBCM) software may activate the driveline-protection system.
Risk: Unintended activation of the driveline-protection system will cause unintended braking on the wheel on the opposite side of the failed sensor, causing the vehicle to pull to one side unexpectedly, increasing the risk of a crash.
Fix: GM will notify owners, and dealers will reprogram the EBCM, free of charge. The recall began December 11, 2019. Owners may contact Chevrolet customer service at 1-800-630-2438 or GMC customer service at 1-800-462-8782. GM's number for this recall is N192261050.
Service bulletins (843)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2026-09-26 · PIT5698F · Service Bulletin/Repair Instructions
this pi provides diagnostics tips on how the lin bus works and how to diagnosis it.
Unknown Or Other 2026-09-04 · PIP4902W · Service Bulletin/Repair Instructions
this preliminary information advises a dealer on how to email gds2 session logs into technical assistance.
Unknown Or Other 2026-07-21 · PIT5099J · Service Bulletin/Repair Instructions
pi to help diagnose a/c concern
Unknown Or Other 2026-07-21 · PIT5509N · Service Bulletin/Repair Instructions
this pi provides diagnostic tips for diagnosing electric trailer brakes issues.
Unknown Or Other 2026-05-14 · PIT5509M · Service Bulletin/Repair Instructions
this pi provides diagnostic tips for diagnosing electric trailer brakes issues.
Unknown Or Other 2026-04-01 · PIT3271Q · Service Bulletin/Repair Instructions
this preliminary information communicates information about how to determine if a wheel and tires size change is available.
Showing the 6 most recent of 843 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-08-27 · Engine“in 2025, one if the pistons misfired. it was repaired and the same issue occurred a year later causing the cam shaft to break as well. not to mention we had an electrical failure where the dashboard didn’t work and the water pump failed right after it was in for the first piston misfiring. it was repaired at ciocca chevrolet in [xxx]. information …”
2026-08-25 · Engine“engine had a catastrophic failure and completely shut off while driving down the highway. the engine has completely seized and requires replacement. the vehicle was towed to an independent service shop and the technician diagnosed that the engine needed to be replaced. …”
2026-08-04 · Engine“there is a safety recall on gm’s 6.2l v8 l87 engine model years 2021-2024. my vehicle is a 2020 suburban with a 6.2l v8 l87 engine. my engine recently experienced the same failure as cited in the recall, but because it is outside the 2021-2024 window it is not covered by this recall. i ask that the recall be expanded to additional years where these…”
2026-08-03 · Unknown Or Other“transmission fail drives fine then stops accelerating …”
2026-05-13 · Unknown Or Other“i just received an email with this the following: nhtsa recall id number :26v289, warning about front or rear wheel lockup. per the nthsa website, there is no recall. the email came from: nhtsa-odi-consumer-communication@service.govdelivery.com …”
2026-03-09 · Engine · 90,000 mi“the contact owns a 2020 chevrolet suburban. the contact stated that while driving at an undisclosed speed, the vehicle failed to accelerate as intended while depressing the accelerator pedal, and the vehicle stalled. a passerby helped the contact to push the vehicle into a parking lot. there was no warning light illuminated. the contact left the ve…”
2026-01-12 · Vehicle Speed Control“driving on interstate and gradual onset of clicking/knocking. within 5 minutes complete loss of propulsion and throttle. rpm went to zero. oil pressure/temperature/engine lights all fine. dealership states "catastrophic engine failure." my family was in the vehicle. fortunately still had power steering and brakes and able to guide vehicle to should…”
2026-01-07 · Electrical System · 85,000 mi“the contact owns a 2020 chevrolet suburban. the contact stated that the vehicle experienced electrical failures that caused several safety and powered components to turn off and on. the contact stated that the vehicle occasionally lost power steering or windshield wiper functionality and would start functioning without having been engaged manually.…”
2026-01-06 · Unknown Or Other“i hadn’t had my car a year and my solenoid in my transmission is in need of replacement. the suv will not pick up speed above 40…”
2025-12-10 · Power Train“transmission is not functioning properly at 74,300 miles. engine kept slipping while driving uphill and the rpms were not matching vehicle speed. could not go above 50mph while merging onto freeway which was very dangerous. whirring noise occurred every time i accelerated which was also noted by dealer and transmission shop. no check engine lights …”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.