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2021 Chevrolet Trailblazer Fuel system Problems

Owner-reported complaints naming the fuel system system, filed with NHTSA

Data refreshed

Fuel system reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
17
Latest Nov 11, 2025
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
9%
of 189 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
0
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
0

What this page shows

Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks. Every record below is an owner-reported complaint about the 2021 Chevrolet Trailblazer submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 17 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming fuel system

Shown in the owner’s own words, exactly as filed

Fuel system
Filed Nov 11, 2025

2021 Chevrolet Trailblazer check engine code P1467

NHTSA ID
11698851
Incident
Nov 6, 2025
AirbagsElectricalFuel system
Filed Jul 24, 2025

Vehicle Diagnostic Summary – Trouble Codes Explained 1. P0562 – System Voltage Low The vehicle’s electrical system is running at low voltage. This could be due to a weak battery, a failing alternator, or poor electrical connections. It may cause various electronic issues and unexpected shutdowns if not fixed. 2. P1005 – Fuel Level Sensor Control Module: Too Many Resets The fuel level sensor module has been reset too many times, likely due to electrical glitches. This may cause the fuel gauge to be inaccurate or unstable. 3. P14C0 / P14CD – Fuel Pump Driver Control Module Signal Error There is a configuration signal error from the fuel pump control module. This could lead to fuel delivery problems, starting issues, or engine stalling if it worsens. 4. U0151 – Lost Communication with Airbag Control Module (SRS) The system lost contact with the airbag diagnostic module. This may affect airbag deployment during a crash, making it a serious safety concern.

NHTSA ID
11676063
Incident
Jul 24, 2025
EngineFuel system
Filed Jun 12, 2025

Month of June of 2024 I purchased 2021 Chevrolet Trailblazer LT with 31k miles on the odometer I had to service my vehicle and had to replace the fuel pump, took weeks to get in due to the strike that took place, Chevrolet will not back behind their employees nor their consumers. They only honored me 15pts on my vehicle, a few months pass and more issues arise one being the manifold sensor (a) and then another two days on the road the wiring harness thankfully my car was under a secondary warranty and I paid $200 per repair, although this became a very costly month being $600 car payment and $400 in repairs in a matter of a few months owning the vehicle, I am having similar issues again with the wiring harness a year later.

NHTSA ID
11666643
Incident
Apr 19, 2024
EngineFuel system
Filed Mar 23, 2025

On [XXX] while driving on the highway my check engine light came on. The car turned off while going 60MPH on the 18 mile stretch towards Miami from Key west and luckily there were no cars around me. I checked for the code and it was P1467 for the Evap Purge Pump. I took it to a dealership in Miami and they told me it would be fine to drive that the part needed to be replaced. I drove back to key west and bought the replacement part. That same part did not work. I checked to see if the part was receiving voltage and it was. So i will continue with going to the dealership. My wife and son have developed a cough from having to constantly smell the fumes due to their existing asthma. I will never buy another chevy again.

NHTSA ID
11649945
Incident
Mar 19, 2025
Fuel system
Filed Feb 24, 2025

On 2/21/25 when I turn on vehicle the engine light came on. I checked for the code and it was P1467 for the Evap Purge Pump. I checked for the gas pump cover and didn't see anything damaged and closed it tight but engine light still on. I feel the gas or engine smell is also coming through the inside of car when fan is turned on and not safe health wise.

NHTSA ID
11644597
Incident
Feb 21, 2025
EngineFuel system
Filed Jan 22, 2025

IN January my fuel gage stopped working , unable to know how much gas I had. The fuel pump and floater needed to be replaced If fuel was not getting to the engine the vehicle would stop working causing a possible accident with other drivers . I did not use this vehicle for many days until a mechanic cleared for useage . It cost me $320.00 of my own money to fix this for safety concerns. As of today 1/22/25 I has been fixed by A-Plus in North Fort Myers.

NHTSA ID
11637782
Incident
Jan 3, 2025
BrakesFuel system
Filed Dec 31, 2024

I have brought my car into the dealership over the last few years at least 6 times for the same issues. Currently there are two codes coming up as permanent on my car which is for the Evaporative Emission System Flow and Brake Booster Hydraulics performance. I drive my child of three every day and the number of times my check engine light comes on and goes into reduced engine power is not okay nor safe.

NHTSA ID
11633315
Incident
Dec 27, 2024
BrakesElectricalFuel system
Filed Sep 11, 2024

05/29/24 I took this vehicle to Cronic Chevrolet in Griffin, Ga due to check engine light being on. Code detected purge pump it was still under warranty at that time only had 43,906 miles on had to get the purge pump replaced. Several weeks after getting it back I kept getting a shift to park message come up when trying to put it in park then started having trouble getting it to go into drive. I have had so many close calls from people almost bashing into me because my car will not go into drive and you constantly have to switch in and out of gears for it to finally go in. Its sucking the had right out due to it not shifting gears properly. The code reader detected transmission control module which I find to be faulty and understand there are serval recalls on this specific vehicle , when it started this issue it didn’t even have 50,000 miles on it!

NHTSA ID
11613947
Incident
Jul 15, 2024
EngineFuel systemPowertrain (other)
Filed Aug 28, 2024

The pick up on the vehicle is losing power it seems not letting the RPM's Go up or drop down before taking off. This cause the vehicle to move slower than normal Code keeps popping up losing power engine while drive and engine light comes on this goes on for about a week or so than stops and engine light disappear and reappears again.

NHTSA ID
11611300
Incident
Jul 15, 2024
Fuel system
Filed Aug 25, 2024

Strong gasoline smell noticed inside and outside vehicle. Took vehicle to dealership 3/1/24 where the smell was confirmed. Fuel rail was found to be leaking. Dealership removed and replaced all components damaged with leak. This problem started again Friday, 8/23/24. Did not resolve and got stronger. Car will be going back to the dealership Monday, 8/26/24 for evaluation.

NHTSA ID
11610750
Incident
Mar 1, 2024
EngineFuel systemPowertrain (other)
Filed Jul 8, 2024

I’m just adding confirmation to my solenoid/waste gate/ turbo system reduced engine power on the 2021 trailblazer around 23,000 miles . [XXX] , Raleigh n.c INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID
11600291
Incident
May 1, 2024
EngineFuel system
Filed Mar 24, 2024

CEL came on at 77,000 miles P1467 Is this covered?

NHTSA ID
11579154
Incident
Mar 24, 2024
Fuel system
Filed Oct 17, 2023

Very strong gas smells coming from under the hood. After driving a few miles, fumes enter the passenger compartment. Had to stop parking it in our garage for fear of a fire before I could get it into the dealer. I've been told it's a fuel leak associated with the fuel rail system. I'm 20 days past my warranty and only at 29,000 miles. It's a nearly $2000 fix. GM was aware of the problem in 2021 as there is a service bulletin for this item. I should have been notified in 2021 that there was a possible problem which could lead to a fire or explosion.

NHTSA ID
11550470
Incident
Oct 10, 2023
Fuel system
Filed Apr 10, 2023

The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving at various speeds, an abnormal fuel odor was coming from the vehicle, without warning. While in traffic, the contact started feeling dizzy and pulled over. The contact’s son who was following her vehicle, also stated that he could smell fuel upon approaching the vehicle. The following day, the vehicle was taken to a dealer where the mechanic discovered a crack in the fuel rail. Upon investigation, the contact discovered Service Bulletin: PIP5765, which she linked to the failure. The manufacturer was notified of the failure, and the contact was provided a case number. The vehicle was not repaired. The failure mileage was approximately 21,000.

NHTSA ID
11516298
Incident
Feb 14, 2023
Mileage
21,000 mi
Fuel system
Filed Mar 16, 2023

Took to mechanic due to strong fuel smell coming from engine area. Mechanic said not safe to drive - fuel rail leaking and must be replaced - vehicle could catch fire or explode! I drive grandchildren in this vehicle and was shook up! Vehicle towed to GM dealer who said I was 3400 miles passed my warranty but they would start work on my $3k repair. I’m outraged that GM cares so little about this known issue from the GM bulletin PIP 5765 which was published 11/18/20. All this time they have known about faulty and dangerous part but only send recalls for minor issues like possible faulty tire jack.

NHTSA ID
11512267
Incident
Feb 13, 2023
Driver assistanceFuel system
Filed Aug 21, 2022

3 times in the last year while we were driving the acceleration wen very high like from 50 to all of a sudden went up to about 80. I had to stand on the brake and try to pull over. Still accelerating I put it in park and shut it off. When you restart it it drive fine again. This has happened three times and the dealership says they can't find a problem. We are stuck driving a death trap. Please help. They wanna charge diagnosis everything I take it in. Then they say they can't find nothing. Now I am finding others that have had same issue and dealership says there is no problem. This has got to be destroying the engine reving at such high speeds.

NHTSA ID
11480422
Incident
May 20, 2022
EngineFuel system
Filed Jan 28, 2022

I had a smell of gasoline inside and under hood of 2021 Trailblazer LT 1.3l. Took to Chevrolet dealer.Confirmed gas odor. Gas was leaking from fuel rail.Sevice manager said it was pouring out. Found out GM has Service bulliten for this PIP5765 that covers both Chevy Trailblazer with 1.3l and Buick Encore GX with 1.3l motors. This has been a scary situation considering gas fumes could have caught fire.

NHTSA ID
11449335
Incident
Dec 21, 2021

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

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Elsewhere on this vehicle

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