Manufacturer-recommended service intervals for the Oil Change Indicator System and open recall alerts for your 2018 Chrysler 300.
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Chrysler's Oil Change Indicator tracks engine load and duty cycle, then messages when oil life is used up — capped at 10,000 miles or 12 months, whichever comes first. The 3.6L Pentastar V6 (300, Pacifica, Town & Country, Voyager) is long-interval by design: spark plugs at 100,000 miles and no timing belt. Minivans in family duty count as 'severe service' more often than owners think — frequent short trips shorten the oil indicator's countdown, and that's the system working correctly.
POWER TRAIN:AUTOMATIC TRANSMISSION
Campaign #18V280000 · Jan 5, 2018
Issue: Chrysler (FCA US LLC) is recalling certain 2018 Dodge Charger, Durango and Challenger, Jeep Grand Cherokee and Wrangler, Chrysler 300, and RAM 1500 vehicles. An incorrect transmission park lock rod may have been installed in the transmission.
Risk: If the incorrect park lock rod is installed, the transmission may not shift into 'PARK' and keep the vehicle from moving, increasing the risk of unintended vehicle movement and the risk of a crash.
Fix: Chrysler will notify owners, and dealers will install the correct park lock rod, free of charge. The recall began June 28, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U43.
ELECTRICAL SYSTEM:WIRING
Campaign #18V332000 · May 17, 2018
Issue: Chrysler (FCA US LLC) is recalling certain 2014-2018 Dodge Journey, Charger and Durango, RAM 2500, 3500, 3500 Cab Chassis (more than 10,000lb), 4500 Cab Chassis and 5500 Cab Chassis, Jeep Cherokee and Grand Cherokee and Chrysler 300, 2014-2019 RAM 1500, 2015-2018 Dodge Challenger, 2015-2017 Chrysler 200, 2016-2018 RAM 3500 Cab Chassis (less than 10,000 lb), 2017-2018 Chrysler Pacifica and 2018 Jeep Wrangler vehicles. These vehicles are being recalled to address a defect that could prevent the cruise control system from disengaging. If, when using cruise control, there is a short circuit within the vehicle's wiring, the driver may not be able to shut off the cruise control either by depressing the brake pedal or manually turning the system off once it has been engaged, resulting in either the vehicle maintaining its current speed or possibly accelerating.
Risk: If the vehicle maintains its speed or accelerates despite attempts to deactivate the cruise control, there would be an increased risk of a crash.
Fix: Chrysler will notify owners, and dealers will inspect the software, and perform a software flash on the engine or powertrain control module, free of charge. The recall began June 4, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Note: Owners are advised to stop using cruise control until the software update has been performed. In the event that cruise control cannot be disengaged while driving, owners should firmly and steadily apply the brakes and shift the transmission to neutral, placing the vehicle in park once it has stopped.
ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD
Campaign #18V524000 · Sep 8, 2018
Issue: Chrysler (FCA US LLC) is recalling certain 2018 Jeep Renegade, Compass and Grand Cherokee, RAM 1500 and Promaster, Fiat 500x, Dodge Journey, Challenger, Charger and Durango and Chrysler 300x vehicles, 2017-2018 Jeep Wrangler, Dodge Grand Caravan and Chrysler Town and Country vehicles and 2018-2019 Jeep Cherokee and 2018 Chrysler Pacifica and Pacifica Hybrid vehicles. The powertrain control module may be equipped with a voltage regulator chip in the circuit board that may fail, causing a stall or a no start condition.
Risk: A vehicle stall can increase the risk of a crash.
Fix: Chrysler will notify owners, and dealers will replace the powertrain control module, free of charge. The recall began October 2, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U87.
AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR
Campaign #24V198000 · Mar 14, 2024
Issue: Chrysler (FCA US, LLC) (Stellantis) is recalling certain 2018-2021 Dodge Charger and Chrysler 300 vehicles. The right and left side curtain air bag inflators may rupture due to a manufacturing defect.
Risk: An inflator rupture may result in sharp metal fragments striking occupants, resulting in injury or death.
Fix: Dealers will replace both side curtain air bags, free of charge. Owner notification letters were mailed beginning February 20, 2025. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA US, LLC's number for this recall is 19B.
Critical for safety and preventing major damage
Change oil when the indicator message appears — never beyond 10,000 miles or 12 months. Pentastar 3.6L uses 0W-20; PT Cruiser's 2.4L uses 5W-30. Short-trip city driving will trigger the indicator well before 10,000 miles.
Estimated cost — typical U.S. ranges
Dealer
~$120–$160
Shop
~$85–$115
DIY
~$25–$55
Full synthetic costs more than conventional. 5-quart 0W-20 + filter is the typical bill.
Rotate every 8,000 miles or at every oil change. Front-heavy minivans (Pacifica, Voyager) chew front tires quickly without rotation.
Estimated cost — typical U.S. ranges
Dealer
~$85
Shop
~$60
DIY
Free
Often free at the shop where you bought the tires — worth asking before paying.
Inspect pads, rotors, and parking brake at every oil change. Loaded minivans and the heavy 300 wear rear pads faster than expected — check both axles.
Estimated cost — typical U.S. ranges
Dealer
~$85
Shop
~$60
DIY
Free
Most shops do this free as a courtesy with any service. Don't pay separately if you can avoid it.
PT Cruiser's 2.4L is a timing-belt engine: replace around 100,000 miles (check your manual's exact interval for the year). Do the water pump and tensioner in the same job — the labor overlaps almost entirely.
Estimated cost — typical U.S. ranges
Dealer
~$935–$1175
Shop
~$655–$825
DIY
Pro only
On interference engines, a snapped belt destroys valves. Worth doing on schedule. Bundle water pump + tensioner — labor is already there.
Keeps your vehicle running smoothly and efficiently
Minivans (62TE six-speed): ATF+4 service every 60,000 miles under family duty. 300 with the ZF/TorqueFlite 8-speed: Chrysler lists no normal-service interval, but specialists recommend fluid service around 60,000-100,000 miles. ATF+4 or the specified 8-speed fluid only.
Estimated cost — typical U.S. ranges
Dealer
~$330–$500
Shop
~$235–$355
DIY
~$60–$180
Some sealed transmissions have no dipstick — fill is precise and best left to a shop. Many drivers can still DIY drain-and-fill.
Pentastar 3.6L: iridium plugs at 100,000 miles. PT Cruiser 2.4L: roughly every 30,000 miles with conventional plugs — check the manual for your year.
Estimated cost — typical U.S. ranges
Dealer
~$285–$390
Shop
~$200–$275
DIY
~$25–$100
Iridium plugs cost more but last 100k+ miles. V6/V8 access varies wildly — some are tough.
Replace every 30,000 miles. On the Pentastar it's a quick top-of-engine job; inspect sooner in dusty climates.
Estimated cost — typical U.S. ranges
Dealer
~$60–$95
Shop
~$45–$70
DIY
~$15–$40
5-minute job on most cars; the airbox lid usually has clips, no tools needed.
Inspect from 60,000 miles and replace on evidence of cracking or glazing. A failed belt on the Pentastar takes the water pump drive with it — don't run it to destruction.
Estimated cost — typical U.S. ranges
Dealer
~$195–$235
Shop
~$135–$165
DIY
~$20–$50
DIY-friendly if you can reach the tensioner. Inspect for cracks rather than swap on a strict mileage interval.
Extends the life of your vehicle and improves comfort
Replace every 20,000 miles — behind the glovebox on Pacifica, Voyager, and 300. Family-hauler duty (pets, gravel school lots) argues for yearly.
Estimated cost — typical U.S. ranges
Dealer
~$60–$95
Shop
~$45–$70
DIY
~$15–$40
Usually behind the glovebox. Shops charge labor for a 10-minute job — easy DIY win.
Stellantis OAT coolant: first replacement at 10 years or 150,000 miles per the schedule; many shops suggest refreshing by 100,000 miles. Use OAT-compatible coolant only — mixing types gels the system.
Estimated cost — typical U.S. ranges
Dealer
~$285–$330
Shop
~$200–$235
DIY
~$25–$60
Use the manufacturer-specified coolant — wrong color/chemistry can damage the cooling system.
Test annually once the battery passes 3 years old. Pacifica's stop-start system uses a pricier AGM or dual-battery setup — weak batteries throw confusing electrical faults first.
Estimated cost — typical U.S. ranges
Dealer
~$225–$390
Shop
~$160–$280
DIY
~$130–$250
Most auto-parts stores test and install batteries free with purchase. Skip the dealer markup.
What drivers and federal regulators have officially reported about the 2018 Chrysler 300.
NHTSA has 152 complaints on file for the 2018 Chrysler 300 (2018-08 → 2026-05). We haven't reviewed and grouped them yet for this specific vehicle — for now, the full list lives on NHTSA.
Top reported components: ELECTRICAL SYSTEM (68) · UNKNOWN OR OTHER (52) · POWER TRAIN (17)
Issues on other model years
Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Jul 27, 2026. Investigation data refreshed Jul 27, 2026.
We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.
Typical U.S. ranges. Actual quotes vary by shop, parts choice, and vehicle condition.
How we estimate: Dealer = OEM parts × 1.4 + labor × $165/hr. Shop = parts + labor × $115/hr. DIY = parts only.
This maintenance schedule for the 2018 Chrysler 300 reflects Chrysler's published service intervals and the Oil Change Indicator System system. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.