WenmarOpen by Wenmar Pro

Service bulletins for the 2020 Jeep Gladiator

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

684 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
S20080001132020-09-28. Service bulletin. ENGINE; ELECTRICAL SYSTEM. No Start Intermittently, Vehicle Requires Multiple Keyless Push To Start Attempts To Start Vehicle
S20080001062020-08-24. Service bulletin. ENGINE AND ENGINE COOLING. No Crank, No Start Intermittently
S19090000022020-06-22. Service bulletin. EQUIPMENT; ENGINE. Customer complaint may include an overfilled engine crankcase after an oil change.
S19250000082020-06-22. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING:ENGINE:DIESEL; EQUIPMENT. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance Set.
90042572020-06-22. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. FILTER KIT, Engine Oil When refilling oil on a JT, JL, DT, or RU equipped with a 3.6L Pentastar UPGRADE engine, please be advised that the engine oil capacity is 5 quarts of oil.
S20080000362020-05-26. Service bulletin. ENGINE. No Start, HVAC Control Panel Illumination Flickers
90042232020-04-06. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ENGINE AND ENGINE COOLING. BATTERY, Auxiliary (180 AMP) Mopar Engineering has reviewed the BBAUA180AA battery due to concerns over fitment in Chrysler, Jeep®, Dodge & Ram vehicles and has provided direction on usage. BBAUA180AA CAN BE USED in the following vehicles equipped with stop/start technology: ?MP ? Jeep Compass ?JL ? Jeep Wrangler ?JT ? Jeep Gladiator ?RU ? Chrysler Pacifica RU NOTE: Modify the BBAUA180AA battery positive mold cover by trimming 3mm of rubber on left side & bottom. ?WK ? Jeep Grand Cherokee ?WD ? Dodge Durango WK/WD NOTE:A vent kit is being created now and will replace the existing tube with a longer one and add an elbow to it for routing (availability is TBD).
18-089-192019-12-16. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
04-001-192019-10-28. Service bulletin. ENGINE. Pentastar Upgrade Oil Fill Level after an Oil Change This bulletin involves rechecking the oil fill level after filling the engine to the correct specifications. The customer may describe that after an oil change they check their oil fill level and it is showing overfilled on the oil dipstick.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.