2021 Ram 1500 maintenance schedule

The 2021 1500 is part of the 5th Gen (DT) (2019-2026). Below: its service intervals with the source behind each one, the fluids it takes, the problems owners report for this year, and the NHTSA recalls issued for it.

Service schedule

What the 2021 1500 needs, and when

All 12 of these items come from Ram's own published schedule. Manufacturer rows link to Ram's own schedule, Independent rows to a service shop or parts retailer's published guide.

ServiceIntervalSource
Engine oil and filter

8,000 miles for EcoDiesel. Do not exceed indicators.

10,000 mi / 1 yearManufacturer
Engine air filter

15,000 miles for EcoDiesel.

30,000 mi / 3 yearsManufacturer
Cabin air filter

Replace more frequently in dusty conditions.

20,000 mi / 2 yearsManufacturer
Tire rotation

Rotate at first sign of irregular wear.

10,000 mi / 1 yearManufacturer
Brake fluid

Mileage intervals do not apply.

2 yearsManufacturer
Engine coolant

Flush and replace at 10 years or 150,000 miles.

150,000 mi / 10 yearsManufacturer
Transmission fluid

60,000 miles for severe duty (police, taxi, towing).

No scheduled replacementManufacturer
Spark plugs (3.6L, 5.7L, 3.0L Gas)

Mileage-based only. 16 plugs required for 5.7L HEMI.

100,000 miManufacturer
Serpentine belt

Replace drive belt with OEM grade Mopar belt if equipped with Stop/Start.

150,000 mi / 15 yearsManufacturer
Differential and transfer case fluid (4x4)

30,000 miles for severe duty.

60,000 mi / 6 yearsManufacturer
PCV valve

Inspect and replace if necessary.

100,000 mi / 10 yearsManufacturer
12V battery

Inspect at every oil change.

Inspect, replace as neededManufacturer

Intervals are for normal driving; towing, short trips, extreme heat or dust shorten them.

Fluids and engines

What goes in it

Engine oil
0W-20 (3.6L, 5.7L, 3.0L SO) / 5W-40 (EcoDiesel) / 0W-40 (3.0L HO)
Coolant
Mopar OAT 10-Year/150k
Transmission fluid
Mopar ZF 8&9 Speed ATF

Powertrains in this generation

  • 3.6L 6-cyl (ERG), 305 hp, 8-Speed Automatic, RWD/4x4
  • 5.7L 8-cyl (EZH), 395 hp, 8-Speed Automatic, RWD/4x4
  • 3.0L 6-cyl diesel (EXF), 260 hp, 8-Speed Automatic, RWD/4x4
  • 3.0L 6-cyl, 420 hp, 8-Speed Automatic, 4x4
  • 3.0L 6-cyl, 540 hp, 8-Speed Automatic, 4x4

Confirm the exact spec against the owner's manual or the label under the hood; capacities vary by engine and drivetrain.

Known problems

What 2021 1500 owners run into

Problems reported for this model year, with the mileage they tend to show up at. Buying past a window is not automatically a pass - it just needs to be priced in.

eTorque System / Alternator failure

high severity

$1,400-$2,000 to fix

Stalling, whining noise, no motive power

Source: m.carcomplaints.com

Third brake light / Rear window leak

medium severity

$88-$111 to fix

Water intruding into headliner and electronics

Source: pickuptrucktalk.com

Uconnect Infotainment failure

low severity

Screen freezing, rebooting every two minutes

Source: military.com

Safety recalls

15 NHTSA recalls for the 2021 Ram 1500

From NHTSA's recall database, matched by model and year. Recall repairs are free at Ram dealers, and a given car may already be fixed or fall outside a campaign, so check the VIN at nhtsa.gov/recalls before you buy.

Seat belts

NHTSA 26V495000

July 2026

Chrysler (FCA US, LLC) is recalling certain 2019-2026 Ram 1500 vehicles. The second-row center and left-side seat belt buckle anchors may have been improperly installed. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 210, "Seat Belt Assembly Anchorages."

Remedy: Dealers will inspect and attach the seat belt buckle anchor to the body structure as necessary, free of charge. Owner notification letters are expected to be mailed August 18, 2026. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is 67D. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov on August 6, 2026.

November 2025

Chrysler (FCA US, LLC) is recalling certain 2021-2022 Ram 1500, Ram 2500, Ram 3500, Ram 4500, and Ram 5500 vehicles. The steering column control module may cause the driver's side air bag not to deploy as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."

Remedy: Dealers will replace the steering column control module, free of charge. Owner notification letters were mailed beginning December 11, 2025. Owners may contact Chrysler customer service at 800-853-1403. Chrysler's number for this recall is 14C. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov beginning November 13, 2025.

May 2025

Chrysler (FCA US, LLC) is recalling certain 2019-2024 Ram 1500 vehicles. The driver's side air bag may not be connected properly, which can cause the air bag not to deploy as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."

Remedy: Dealers secured the connectors for the air bag, free of charge. All vehicles have been remedied. Owner notification letters were mailed May 27, 2025. Owners may contact Chrysler customer service at 800-853-1403. Chrysler's number for this recall is 08C.

Visibility

NHTSA 24V754000

October 2024

Chrysler (FCA US, LLC) is recalling certain 2020-2023 Ram 1500 Classic vehicles equipped with heated trailer tow rearview mirrors. The mirror glass may detach from the driver's side heated trailer tow rearview mirror. As such these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

Remedy: Dealers will replace the mirror glass, free of charge. Owner notification letters were mailed December 5, 2024. Owners may contact FCA Customer Service at 1-800-853-1403. FCA's number for this recall is 86B.

Electronic stability control (ESC)

NHTSA 24V653000

September 2024

Chrysler (FCA US, LLC) is recalling certain 2019, 2021-2024 Ram 1500 vehicles. Due to a software malfunction, the anti-lock brake system (ABS) control module may disable the electronic stability control system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 126, "Electronic Stability Control Systems."

Remedy: Dealers will update the ABS control module software, free of charge. Interim notification letters, notifying owners of the safety risk, were mailed October 10, 2024. Owner notification letters were mailed beginning September 26, 2024. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA US, LLC's number for this recall is 85B.

Power train

NHTSA 23V265000

April 2023

Chrysler (FCA US, LLC) is recalling certain 2021 Ram 1500 vehicles equipped with 5.7L eTorque engines. The powertrain control module software may cause an incorrect fuel mixture condition in the engine, and result in an engine stall.

Remedy: Dealers will update the Powertrain Control Module calibration software, free of charge. Owner notification letters were mailed April 27, 2023. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA US, LLC's number for this recall is 37A.

Back over prevention

NHTSA 23V059000

February 2023

Chrysler (FCA US, LLC) is recalling certain 2021-2023 Ram 1500 and 2023 Ram 2500 vehicles. The trailer reverse steering control module (TRSCM) may prevent the rearview image from displaying when the vehicle is placed in reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

Remedy: Dealers will update the TRSCM software, free of charge. Owner notification letters were mailed March 1, 2023. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA US, LLC's number for this recall is 14A. This recall supersedes and expands previous recall numbers 21V-438 and 21V-918. FCA US Recall ID 63A is a vehicle population expansion of FCA US Recall ID 14A (NHTSA Recall ID 23V-059).

December 2022

Chrysler (FCA US, LLC) is recalling certain 2019-2022 Ram 1500, 2500, and 3500 pickup trucks. The tailgate may not latch properly due to misaligned tailgate strikers, which could result in the tailgate opening while driving.

Remedy: Dealers will inspect the tailgate striker alignment to the box latch and adjust, if necessary, free of charge. Owner notification letters were mailed December 22, 2022. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA US, LLC's number for this recall is ZB8.

October 2022

Chrysler (FCA US, LLC) is recalling certain 2020-2022 Jeep Wrangler, Ram 1500, and 2021-2022 Jeep Gladiator vehicles equipped with 3.0L diesel engines. The high pressure fuel pump (HPFP) may fail, causing an engine stall.

Remedy: Dealers will replace the HPFP and inspect and replace additional fuel system components, as necessary, free of charge. Owner notification letters were mailed October 17, 2023. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is Z96.

Back over prevention

NHTSA 22V638000

August 2022

Chrysler (FCA US, LLC) is recalling certain 2020-2021 Jeep Wrangler, RAM 1500 and 2021 Jeep Gladiator vehicles. A radio software error may prevent the rearview image from displaying. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

Remedy: Dealers will update the radio software, free of charge. Owner notification letters were mailed October 6, 2022. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA, LLC's number for this recall is Z86.

November 2021

Chrysler (FCA US, LLC) is recalling certain 2021-2022 Ram 2500, Ram 3500, and 2021 Ram 1500 Classic pickup trucks. The side air bag inflatable curtain (SABIC) assemblies may have been manufactured with the incorrect amount of compressed gas, which can result in an improper air bag deployment.

Remedy: Dealers will replace the SABIC assemblies, free of charge. Owner notification letters were mailed January 17, 2022. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA US, LLC's number for this recall is Y99.

November 2021

Chrysler (FCA US, LLC) is recalling certain 2021 Ram 1500 pickup trucks. The Trailer Reverse Steering Control Module (TRSCM) may prevent the rearview image from displaying. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

Remedy: Dealers will update the TRSCM software. Interim owner notification letters were mailed on January 19, 2022. Owner notification letters were mailed on February 22, 2022. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA US, LLC's number for this recall is Y80. This recall was superseded by 23V-059.

September 2021

Chrysler (FCA US, LLC) is recalling certain 2021 Ram 1500 vehicles. The incorrect-size spare tire may have been installed, which does not match the tire size and inflation pressure information on the tire placard. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 110, "Tire Selection And Rims."

Remedy: Dealers will replace the spare tire assembly, free of charge. The owner notification letter was mailed on September 9, 2021. Owners may contact FCA US LLC customer service at 1-800-853-1403. FCA US LLC's number for this recall is Y62.

Back over prevention

NHTSA 21V438000

June 2021

Chrysler (FCA US, LLC) is recalling certain 2021 Ram 1500 vehicles equipped with a trailer reverse steering module (TRSCM). The rearview camera image may not display. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

Remedy: Dealers will update the TRSCM software, free of charge. Owner notification letters were mailed June 24, 2021. Owners may contact FCA US, LLC customer service at 1-800-853-1403. FCA, US, LLC's number for this recall is Y30. This recall was superseded by recall number 21V-918.

Service brakes, hydraulic

NHTSA 21V037000

February 2021

Chrysler (FCA US, LLC) is recalling certain 2020-2021 Ram 1500 Classic SLT trucks. Certain vehicles were built without the retaining clip that secures the master cylinder push rod to the brake pedal, which can cause the brake pedal to separate from the brake system.

Remedy: Owners are advised to not drive their vehicles until they receive instructions on the inspection and repair, as necessary. FCA US will notify owners, and dealers will inspect and install the push rod clip, free of charge. The recall began February 9, 2021. Owners may contact FCA US customer service at 1-800-853-1403. FCA US number for this recall is Y04.

Running costs

What maintenance typically costs

A typical year of maintenance
$691
Five years of maintenance
$5,975
The major service near 100,000 mi
$1,960

Typical US independent-shop estimates for this generation; they vary by region and condition.

Other 1500 model years

5th Gen (DT) (2019-2026)

Shopping new? The Ram 1500 guide covers the current model, with what it costs to keep for 1 to 15 years.

Sources

Researched 2026-09-21. Modeling, not mechanic advice - always confirm against your car's owner's manual and service records.

Running a 1500 for income?

Carlyle scores the exact listing on cost per remaining mile and projected Turo income, so you know what a 2021 1500 earns before you buy it.

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