2018 Chevrolet Suburban Transmission & Powertrain Problems
NHTSA lists 17 transmission & powertrain complaints for the 2018 Chevrolet Suburban, 21% of all 81 complaints filed for the year. Median mileage at failure was 98,000, with one crash and no fires reported. The related recall (26V289000) applies to 2026 model-year GM SUVs, not the 2018 Suburban.
- Transmission & Powertrain complaints
- 17
- 21% of 81
- Crashes reported
- 1
- Fires reported
- 0
- Injuries reported
- 0
- Median mileage
- 98,000 mi
- Related recalls
- 1
Typical transmission symptoms owners report
- Vehicle suddenly stalls or loses power while merging or accelerating on the highway, sometimes dropping from highway speed to a crawl without warning.
- Transmission shudders, shakes, or jolts to a near-stop at low speeds, such as accelerating from a green light.
- Owners report full transmission failure or replacement, with some vehicles requiring a rebuild after the transmission stopped functioning without warning lights.
- Torque converter issues are diagnosed after reports of shaking during acceleration, with mechanics warning the vehicle is unsafe to drive until repaired.
- Dashboard shows an overheated transmission warning while the vehicle suddenly drops speed sharply on the interstate.
- Transmission slips and shifts late under heat or after prolonged highway driving, sometimes followed by hard shifting, hard braking, and steering wheel shake.
When 2018 Chevrolet Suburban transmission complaints were filed
First complaint Dec 5, 2019, latest Jun 1, 2026.
Transmission & Powertrain recalls for the 2018 Chevrolet Suburban
- NHTSA 26V289000May 7, 2026Transmission & Powertrain66 vehiclesDo Not Drive
Power train:transfer case (4-wheel drive)
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.
Remedy: 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 NHTSA.gov on May 7, 2026.
Transmission & Powertrain complaints by Suburban model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- How common are transmission problems on the 2018 Chevrolet Suburban?
- NHTSA lists 17 transmission & powertrain complaints for the 2018 Suburban, which is 21% of the 81 total complaints filed for that model year.
- At what mileage do 2018 Suburban transmission problems typically show up?
- The median mileage at failure reported to NHTSA is 98,000 miles, though individual owners reported failures at other mileages as well.
- Is there a transmission recall for the 2018 Chevrolet Suburban?
- The transmission & powertrain recall on file (campaign 26V289000) covers 2026 model-year GM SUVs including the Suburban, not the 2018 model year.
- Did any 2018 Suburban transmission complaints involve crashes or fires?
- NHTSA data shows 1 crash and 0 fires among the 17 transmission & powertrain complaints for the 2018 Suburban.