2018 Chevrolet Tahoe: Recalls, Problems & MPG
Here are the deets on the 2018 Chevrolet Tahoe: 3 recalls, 105 owner complaints and up to 19 mpg combined.
Recalls
3 vehicle recalls from the manufacturer. Repairs are free. Check your VIN to see if one is still open on your car.
Brakes (hydraulic) Vehicle recall #19V645000 · 2019 · 3,456,719 vehicles
What's wrong: The amount of vacuum created by the vacuum pump May decrease over time.
Why it matters: As the vacuum level drops, the brake assist decreases, increasing braking effort, extending the distance required to stop the vehicle, thereby increasing the risk of a crash.
The fix: Gm will notify owners, and dealers will reprogram the electronic brake control module, free of charge. The recall began October 8, 2019.
Brakes, Brakes (hydraulic) Vehicle recall #19V761000 · 2019 · 652,967 vehicles
What's wrong: 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.
Why it matters: 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.
The fix: Gm will notify owners, and dealers will reprogram the ebcm, free of charge. The recall began December 11, 2019.
Brakes (hydraulic) Vehicle recall #20V603000 · 2020 · 14,620 vehicles
What's wrong: 3l or 6.2l v8 engine. The output of the mechanical vacuum pump can decrease over time, decreasing the amount of vacuum/power brake assist.
Why it matters: A decrease in brake assist can increase the brake pedal effort and distance required to stop the vehicle, increasing the risk of a crash.
The fix: Gm will notify owners, and dealers will reprogram the electronic brake control module, free of charge. The recall began November 11, 2020.
Most-reported problems
Owner complaints filed with NHTSA, by component. One complaint can list several components. 0 mention a fire, 5 injuries and 1 deaths were reported.
What owners describe
- Other / unknown (27): the most common themes are stalls / loses power (5), leaks (5).
- Engine (20): the most common themes are warning light on (6), noise or vibration (4).
- Transmission & drivetrain (20): the most common themes are hard / delayed shifting (6), warning light on (5), noise or vibration (4).
- Brakes (16): the most common themes are brake failure / soft pedal (3), warning light on (3).
The 2018 Chevrolet Tahoe has 105 owner complaints, ranking #27 of 36 Tahoe model years for complaints (well below the 279 average). Complaints peaked in 2026 (20 filed that year). The typical problem showed up when the car was about 5 years old, at a median of 42,000 miles. Neighboring years: 2017 (174 complaints, 4 recalls), 2019 (106 complaints, 2 recalls).
Engines & fuel economy (EPA)
| Engine | Transmission | Drive | City | Hwy | Comb. | Fuel |
|---|---|---|---|---|---|---|
| 5.3 L 8-cyl | Automatic 6-spd | Rear-Wheel Drive | 16 | 23 | 19 | Regular |
| 5.3 L 8-cyl | Automatic 6-spd | Rear-Wheel Drive | 16 | 23 | 19 | Gasoline or E85 |
| 5.3 L 8-cyl | Automatic 6-spd | 4-Wheel Drive | 16 | 22 | 18 | Regular |
| 5.3 L 8-cyl | Automatic 6-spd | 4-Wheel Drive | 16 | 22 | 18 | Gasoline or E85 |
| 6.2 L 8-cyl | Automatic 10-spd | 4-Wheel Drive | 14 | 22 | 17 | Premium |
| 6.2 L 8-cyl | Automatic 10-spd | Rear-Wheel Drive | 14 | 23 | 17 | Premium |
Want the full repair deets? Get the factory manual.
Recall and complaint data tells you what goes wrong. A service manual tells you how to fix it: torque specs, wiring diagrams, fluid capacities and step-by-step procedures for the 2018 Chevrolet Tahoe.
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Most $25–$78, one-timePro-shop repair procedures, wiring diagrams and TSBs for your exact car.
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FAQ
Does the 2018 Chevrolet Tahoe have any recalls?
Yes. NHTSA lists 3 vehicle recalls for the 2018 Chevrolet Tahoe. Recall repairs are free at any dealer, no matter how old the car is. Check your VIN at nhtsa.gov/recalls.
What are the most common 2018 Chevrolet Tahoe problems?
Owners have filed 105 complaints with NHTSA. The most-reported areas are other / unknown (27), engine (20), transmission & drivetrain (20).
What gas mileage does the 2018 Chevrolet Tahoe get?
EPA ratings run up to 19 mpg combined (5.3 L, Automatic 6-spd), across 6 engine and transmission combos.
Where can I get a 2018 Chevrolet Tahoe repair manual?
eManualOnline sells downloadable manuals, Mitchell 1 DIY and ALLDATAdiy sell online access to factory repair data, and Haynes sells printed guides and online access. Pick a download if you want to keep it, or a subscription for wiring diagrams and TSBs.