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Fuel systemPart report

2018 Chevrolet Suburban Fuel system Problems

Complaints
4about this part
Share
5%of 84 total for the year
Median mileage
52,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the fuel system of the 2018 Chevrolet Suburban, 5% of the 84 complaints for this model year. Where a mileage was given, the median is 52,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I purchased this vehicle in dec of 2019 used. 35,000 miles. Now has 88,000 and the transmission went out. Regular oil changes. No warning lights. No issues. Stopped running. After having someone look at it to see what the issue was, the mechanic said the entire transmission has to either be rebuilt or replaced.”

NHTSA complaint #11395943, filed 2021-02, 88,000 miles

“The filler neck on my 3 month old 2018 Chevrolet Suburban 1500, had to be replaced because of an o ring that was missing, causing the fuel tank not to pressurize properly causing the fuel management system to send an obd ii fault.”

NHTSA complaint #11129703, filed 2018-09, 3,200 miles

“On August 7, 2026, while driving a rental vehicle in the Denver, Colorado area with my family, including two young children, the vehicle unexpectedly lost engine power while traveling downhill. The engine shut off, resulting in a significant reduction in brake assistance and creating an extremely dangerous situation. We were able to bring the vehicle to a stop without a collision or injury. After restarting the vehicle, the check-engine light illuminated. The vehicle was no longer considered safe to operate and ultimately required towing by the rental operator. …”

NHTSA complaint #11771060, filed 2026-10

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
202424%
202365%
20221310%
20213216%
202037%
201845%
201764%
201652%
2015276%
201423%
201354%
201222%
201164%
201033%
200966%
200863%
2007114%
200586%
2004147%
2003114%
2002279%
20016014%
20004014%
1999376%
1998115%
19974611%
1996236%
199572%
1994152%
199310%
199112%
198923%
1988310%
1987317%
1986114%

Other parts of the 2018 Chevrolet Suburban

Engine
19 complaints
Transmission and drivetrain
19 complaints
Electrical system
17 complaints
Brakes
15 complaints
Other or unknown
11 complaints
Steering
8 complaints
Seat belts
5 complaints
Air bags
4 complaints
Wheels
4 complaints
Vehicle speed control
3 complaints
Electronic stability control
2 complaints
Suspension
2 complaints

← All problems reported for the 2018 Chevrolet Suburban

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology