2020 Jeep Gladiator electrical problems

The digital instrument panel cluster (IPC) experiences an internal short circuit and goes completely black or blank, rendering the display inoperable. Owners report loss of critical vehicle information including speedometer, fuel gauge, temperature gauge, odometer, tire pressure, battery voltage, and warning indicators. Some owners report the display flickers before failing permanently; others describe sudden failure with no warning signs. A few complaints note the center display area specifically going blank while analog gauges remain functional. The failure appears unrelated to fuse issues or simple electrical disconnects—fuse checks and battery resets do not resolve it. Owners express serious safety concerns about inability to monitor fuel level (leading to running out of gas on highway), see speed, track mileage, or receive critical warnings while driving.

When: Failures reported across a wide mileage range: 20,500 miles to 105,000 miles. Some occur within first months of ownership; others appear after 2+ years of use. Timing does not correlate to specific driving conditions or environmental factors.

Symptoms owners cite: Instrument panel display goes completely black or blank; Digital speedometer inoperable; Fuel gauge not visible; Temperature gauge not visible; Odometer not visible; Warning lights and messages not visible; Tire pressure indicator not visible; Battery voltage indicator not visible; Center LCD screen shows no information; Display flickers before going black; Analog gauges (if equipped) remain functional when digital cluster fails; No warning lights or error messages prior to failure; Failure sometimes intermittent before becoming permanent

Codes mentioned: NHTSA Campaign 24V652000, Manufacturer Recall 30B, TSB 08-002-21A (relates to BCM and IPC software communication faults)

Repairs/costs cited: Dealership diagnosis confirms internal short circuit in instrument cluster. Replacement cluster quoted at $500–$1,300 depending on whether remanufactured or new part used. Parts are on back order with extended lead times (dealers report ETAs moved from 45 days to 3+ months, with multiple cancellations). Some owners report waiting 6+ months or longer with no confirmed delivery date. Labor costs not always specified but repair typically keeps vehicle at dealership for extended period. Full cluster replacement is the stated remedy with no reflash or repair alternative available.

Recalls/TSBs owners mention: Stellantis (FCA) issued Recall 30B (NHTSA 24V652000) for 2020–2024 Jeep Gladiator and 2018–2024 Jeep Wrangler instrument cluster failures. However, many affected owners report their VINs were not included in the recall despite experiencing identical symptoms. TSB 08-015-21 referenced by some owners for radio-related issues; one owner reported TSB 08-002-21A relates to instrument cluster communication faults. Jeep corporate has escalated cases but provided no resolution timeline or alternative assistance. Some owners say dealerships deny recall applicability even when symptoms match recall description exactly. Manufacturers referred several owners to NHTSA Hotline rather than providing direct remedy. One owner mentions extended warranty may cover the repair but parts remain unavailable.

The base radio system experiences intermittent electrical shorts that produce loud popping sounds through the speakers during startup or while driving. The radio may lock up with a black screen, lose all settings (time, station presets, phone pairing), and shut down entirely. After shorts, the radio eventually comes back on but with all user settings erased. Owners report this problem has existed in Jeep Wrangler models since 2018 and continues in 2020 Gladiator models. One owner reports visiting dealership 13 times for this issue. A TSB (08-015-21) was issued as a firmware update but did not resolve the problem; one owner reported the radio locked up for nearly a week after the update and the popping issue resumed afterward.

When: Occurs during startup or while driving at various speeds. One owner reports first occurrence within weeks of purchase. Problem recurs randomly and repeatedly despite repair attempts.

Symptoms owners cite: Very loud popping sound from radio speakers during startup or driving; Radio shorts out and goes to black screen; Radio locks up and becomes unresponsive; Loss of all radio settings (time, preset stations, phone pairing); Radio eventually powers back on but with settings reset; Startling loud noise comparable to rifle shot fired from speakers; Radio does not retain time; clock resets frequently; Distraction and safety hazard due to unexpected loud noise while driving; Problem is intermittent and difficult for dealer to reproduce on demand

Codes mentioned: TSB 08-015-21 (firmware update, reportedly ineffective)

Repairs/costs cited: Dealership performed radio replacement in at least one case, but replacement unit exhibited identical symptoms. Owners cite suspected firmware defect as cause. No confirmed successful repair reported in narratives. One owner states dealer suggested only taking vehicle in when problem occurs, which is impractical due to short duration of shorts (approximately 1 minute).

Recalls/TSBs owners mention: Jeep issued TSB 08-015-21 as a firmware update with promise to fix all radio issues. However, owner reported the update did not resolve the popping sound or lock-up problem; vehicle returned to dealership after update and problem recurred. Jeep Cares advised owner to apply TSB but offered no alternative when TSB failed. One owner reports Jeep has not resolved these base radio issues since 2018 in Wrangler and continues into 2021 Gladiator models, suggesting known but unresolved defect.

The Electronic Start/Stop (ESS) system becomes unavailable or malfunctions, rendering the auto start/stop function inoperable and disabling remote start capability. Owners report the system re-engages unintentionally when parked. The condition is associated with premature failure of the start/stop auxiliary battery or TPM/distribution box failures. Problem is documented as widespread in 2018+ Jeep Wrangler and 2020+ Jeep Gladiator models. Some owners note the failure creates reliability concerns for the vehicle's electrical system as a whole, potentially leading to unexpected engine stoppages and stranding. One owner expressed concern about EPA compliance since ESS is required equipment to meet EPA fuel economy standards.

When: One owner reports first occurrence shortly after purchase. Another reports the issue occurred twice. Problems documented as ongoing across multiple model years. One owner notes issue appears tied to battery system failures that can strand vehicle if they occur at end of warranty period.

Symptoms owners cite: Auto start/stop system unavailable or inoperable; Remote start function unavailable for cold weather starts; Start/stop system re-engages unintentionally at complete stop; Intermittent warning messages for start/stop system; Owner manually disabled start/stop but system re-engaged unintended; Potential loss of shifting capability linked to system failure; Potential unexpected engine stoppage while driving; Battery and electrical system reliability concerns

Repairs/costs cited: Dealers report causes ranging from premature auxiliary battery failure to TPM/distribution box failures. No specific repair procedures or parts noted in narratives. One owner notes concern about vehicles reaching end of warranty and then circulating on highways with unresolved failures.

Recalls/TSBs owners mention: No manufacturer recalls or TSBs mentioned. Issue is documented as widespread and well-known among 2018+ Wrangler and 2020+ Gladiator owners per forum discussions, but no factory remedy cited in complaints.

Multiple control modules lose communication with each other, resulting in repeated fault codes and warning messages (particularly 'Service Shifter'). The condition is intermittent and unpredictable; faults temporarily clear then return after driving. Some owners describe the vehicle's electrical system behaving inconsistently. Both main battery and auxiliary battery replacement did not resolve the issue, suggesting a deeper electrical architecture problem such as wiring harness faults or battery management system failure. One owner suspects the issue involves the auxiliary battery system, battery management system, or wiring.

When: First occurred approximately three weeks after a normal drive in one case. Problem then recurs randomly and repeatedly. Ongoing and intermittent but reproducible.

Symptoms owners cite: Intermittent loss of communication between control modules; Repeated 'Service Shifter' warning messages; Fault codes indicating loss of module communication; Unpredictable and inconsistent vehicle system behavior; Temporary improvement followed by return of faults and warnings; Potential loss of shifting capability; Starting issues or failure of electronically controlled systems while driving; Safety risk due to unreliable operation

Codes mentioned: Fault codes for loss of communication between modules (specific codes not detailed)

Repairs/costs cited: Main battery and auxiliary battery were both replaced with no improvement. No successful repair reported.

The vehicle experiences sudden loss of power and ability to accelerate, accompanied by 'Electronic Throttle Control Maintenance Required' alerts and smoke from under the hood. In one case, the vehicle lost acceleration capability while driving uphill on a rural road in cold weather (approximately 35°F). The driver pulled over after smoke appeared. Dealership diagnosed moisture in the engine oil and claimed it is common in the model year. They performed system flush and oil change. Another complaint describes entire electrical system failure: engine won't start, warning flashers inoperable, vehicle won't shift into neutral. Dealership unable to reproduce the problem but suspects blown fuse block as end result of unknown short circuit.

When: One owner experienced loss of throttle control on a cold January morning (35°F) during normal highway driving. Electrical system shutdown occurred at undisclosed mileage. Another owner's complete electrical failure occurred blocking an intersection, requiring 2-hour tow wait.

Symptoms owners cite: Loss of acceleration ability while driving; Electronic Throttle Control Maintenance Required alert displayed; Smoke billowing from under hood; Engine overheating warning messages (separate complaint); Complete electrical system failure; Engine won't start; Warning flashers inoperable; Vehicle won't shift into neutral; Moisture detected in engine oil; ESC (Electronic Stability Control) Maintenance alert displayed

Codes mentioned: Electronic Throttle Control Maintenance Required (DTC not specified)

Repairs/costs cited: One case treated with oil system flush and oil change. Another case required replacement of 150-amp fuse block (dealer quote $400 for $50 part); owner researched forums and found similar issues in other models with dual battery systems but no definitive cause identified.

Recalls/TSBs owners mention: Dealership claimed moisture in oil is 'common in this model year' and performed flush. No recall or TSB mentioned.

All or most dashboard lights (including radio, start/stop indicator, heat/air controls) go out while driving. A clicking noise in the dash precedes the failure. After the lights go out, the start/stop light stays on permanently and no longer functions. Climate control automatically engages air conditioner on high and rear defogger/heated mirrors simultaneously and continuously for 5 minutes at startup, with no ability to turn them off until they self-deactivate. Problem has recurred multiple times on the same vehicle.

When: Failures have occurred on multiple occasions. Fourth failure resulted in permanent start/stop light on and climate control malfunction.

Symptoms owners cite: Entire dash lights go out while driving; Radio and display lights go out; Start/stop indicator light goes out; Heat/air control lights go out; Clicking noise in dash preceding failure; Start/stop light remains on permanently after fourth failure; Start/stop function does not work; Air conditioner automatically engages on high at startup; Rear defogger automatically engages at startup; Heated mirrors automatically engage at startup; Climate controls unresponsive to user input for approximately 5 minutes; Unpredictable problem recurrence

Repairs/costs cited: Multiple recurrences; no successful repair documented.

Recalls/TSBs owners mention: Dealership informed owner that VIN does not fall under a related recall despite similar symptoms occurring in other 2020 Gladiators.

The 7-inch touchscreen instrument panel cluster (IPC) begins flickering intermittently, then stops turning on altogether. Owners of 7-inch IPCs note their vehicles are excluded from the recall that covers 3.5-inch IPC failures, despite experiencing identical symptoms. One owner reports the flickering began in January 2025 and the display stopped working entirely in May 2025. The issue is particularly concerning for 7-inch IPC owners because these versions lack analog temperature and fuel gauges as backups, unlike the 3.5-inch versions. Owners report it is a widespread problem among 2020 Gladiators with 7-inch IPCs but these vehicles were excluded from the official recall.

When: Flickering may persist for months (January to May 2025 in one case) before display stops working entirely. One owner reports failure at 20,500 miles.

Symptoms owners cite: 7-inch touchscreen display begins flickering constantly; Flickering intensifies over time; Display stops turning on altogether; No analog gauges as backup (unlike 3.5-inch IPC models); Digital speedometer unavailable; Cruise control status not visible; Fluid temperatures not visible; Tire pressure information unavailable; Battery voltage information unavailable; No warning alerts visible

Codes mentioned: NHTSA Campaign 24V652000 (does not officially cover 7-inch IPC models), Manufacturer Recall 30B (does not officially cover 7-inch IPC models)

Repairs/costs cited: Dealership replacement quoted at approximately $2,000. Parts remain on extended back order. One dealership (Bayside King George, VA) first observed flickering when test driving vehicle after performing the 3.5-inch IPC recall.

Recalls/TSBs owners mention: Recall 30B and NHTSA 24V652000 officially cover only 3.5-inch IPC models. Owners of 7-inch IPC models experiencing identical failures report their vehicles were excluded from the recall despite meeting all other vehicle specifications (2020 Gladiator model year). No manufacturer statement addressing why 7-inch models were excluded or whether they will be added to recall.