Front and Rear Axle Sensor Kit **Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) has been set: ? C1451-11 - Service Axle Locker System** Customers may also comment on a Service Axle Locker message displayed in the Electronic Vehicle Information Center (EVIC) for this condition.
full bulletin at NHTSA ↗2020 Jeep Gladiator lighting problems
severe Owners of the 2020 Jeep Gladiator have filed 4 NHTSA complaints about the lighting at roughly $250 to repair (U.S. federal records, as of August 2026). Source: NHTSA Office of Defects Investigation. See lighting across all vehicles →
Complaints
4
Recalls
0
Avg fix
$250
| Model year | lighting complaints |
|---|---|
| 2020 Gladiator (this page) | 4 |
| 2021 Gladiator | 11 |
| 2022 Gladiator | 5 |
1crash
2injuries
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering lighting on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Headlamp Condensation Clearing Procedure This bulletin is to communicate the procedure for headlamp condensation clearing.
full bulletin at NHTSA ↗Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following DTCs: P0300 - Multiple Cylinder Misfire.If DTC P0300 is present either alone or along with other DTCs listed within thisbulletin the right intake camshaft MUST be replaced along with this software update (only if DTC P0300 is present). Refer to the detailedservice procedures available in DealerConnect>Service Library under: Service Info>09 - Engine, 3.6L / Cylinder Head / Camshaft, Engine / Removal and Installation>
full bulletin at NHTSA ↗Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following DTCs: P0300 - Multiple Cylinder Misfire.If DTC P0300 is present either alone or along with other DTCs listed within thisbulletin the right intake camshaft MUST be replaced along with this software update (only if DTC P0300 is present). Refer to the detailedservice procedures available in DealerConnect>Service Library under: Service Info>09 - Engine, 3.6L / Cylinder Head / Camshaft, Engine / Removal and Installation>
full bulletin at NHTSA ↗Fuel Tank Replacement - P0461: Level Sensor Performance This bulletin involves diagnosis and if necessary replacing the fuel tank and O-ringdue to a P0461 Diagnostic Trouble Code (DTC). Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the followingDiagnostic Trouble Code (DTC) has been set:P0461 - Fuel Level Sensor 1 Performance. In addition, the customer may notice one or more of the following:The fuel gauge is not accurate. The fuel gauge is stuck.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 0 most recent
Had lighting trouble with your 2020 Jeep Gladiator?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the lighting problem on the 2020 Jeep Gladiator?
It's a meaningful issue. 4 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $250.
At what mileage does the lighting typically fail?
Based on the 4 complaints filed, lighting issues most often appear around 1,200 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $250 for lighting repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to lighting?
No active recalls currently cover lighting issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2020/Jeep/Gladiator.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.