2019–2025 DT (5th generation)
2019–2025 Ram 1500 Key Fob Battery Type and Replacement
The 2019–2025 Ram 1500 key fob takes a CR2032 (fob 68442905AB / OHT-4882056); a few 5-button fobs take CR2450. Check the old cell when the case is open coin cell. How to open the fob without breaking it, and which substitutions actually work.
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Quick answer
The 2019–2025 Ram 1500 key fob takes a CR2032 (fob 68442905AB / OHT-4882056); a few 5-button fobs take CR2450. Check the old cell when the case is open coin-cell battery, available at any pharmacy, hardware store, or online for a few dollars.
Replacing the 2019–2025 Ram 1500 key fob battery
- Pry the fob open gently at the seam with a small flathead screwdriver or a coin, working around the edge. Many fobs have a hidden release slot near the key ring or emergency-key blade.
- Note the battery orientation (usually positive side up) before removing the old cell.
- Avoid touching the new battery's faces with bare fingers; skin oils can shorten its life.
- If the fob doesn't work after replacement, check that the battery is seated fully and the contacts weren't bent. Most vehicles do not need re-pairing after a battery change.
Which Ram 1500 model years does this cover?
These key fob battery specifications apply to every Ram 1500 built from 2019 through 2025 — the DT (5th generation), full-size half-ton pickup (quad, crew cab). Nothing in this specification changes between those model years. Pick your year for the engines it offered, what changed that year, and the problems recorded against it.
What changed during the 2019–2025 Ram 1500
- 2019DT launch: eTorque 48V mild hybrid on 3.6L (std) and 5.7L (opt); wheels change to 6x139.7. DS 'Classic' (5-lug) sold alongside through 2024
- 2020Gen-3 3.0L EcoDiesel (260 hp/480 lb-ft) added
- 2021TRX (702-hp supercharged 6.2L) added; Limited Longhorn and TRX-inspired styling packages expand
- 2023EcoDiesel discontinued (last trucks built January 2023)
- 2024Final year for TRX and for the 1500 Classic (DS)
- 2025Mid-cycle refresh: 5.7L HEMI dropped, 3.0L Hurricane SST I6 (SO 420 hp / HO 540 hp incl. RHO) replaces it; 3.6L eTorque continues as base; Tungsten flagship added. (HEMI returns for 2026 after customer backlash.)
2019–2025 Ram 1500 key fob battery: common questions
What battery does the 2019–2025 Ram 1500 key fob take?
- A single CR2032 (fob 68442905AB / OHT-4882056); a few 5-button fobs take CR2450. Check the old cell when the case is open coin cell.
Can you use a CR2032 instead of a CR2025 in a 2019–2025 Ram 1500 key fob?
- This fob takes a CR2032 (fob 68442905AB / OHT-4882056); a few 5-button fobs take CR2450. Check the old cell when the case is open, so start there. The two cells share a 20 mm diameter but differ in thickness, and the thicker one does not always seat in a housing built for the thinner.
How do you open a 2019–2025 Ram 1500 key fob?
- Slide out the mechanical emergency key first, which usually releases a catch, then part the halves with a plastic pry tool or a coin wrapped in tape. A screwdriver will mark the case and can crack the seam.
Sources
- FCA media, 2021 Ram 1500 TRX specifications
- NHTSA recall 22V-904, tailgate striker (Part 573 report, FCA ZB8)
- FCA Safety Recall V17 / NHTSA 19V-142, 48-volt ground cable fastener (oemdtc)
- Diesel Hub, 3.0L EcoDiesel oil change guide (gen-3: 8.5 qt, 68507598AA)
- fueleconomy.gov, 2022 Ram 1500 EPA ratings
- fueleconomy.gov, 2025 Ram 1500 EPA ratings (Hurricane SO/HO)
- SD Wheel, 5th-gen Ram 1500 fitment guide (6x139.7, 130 ft-lb)
- Mopar eStore, 68414387AA DT engine air filter
- Mopar eStore, 53011248AB TRX 6.2L air filter
- Mopar eStore, 68683357AA Hurricane HO oil filter (supersedes 68466307AB)
- Interstate Batteries, Ram 1500 H7/94R fitment
- Mopar owner info, oil life reset procedure (accelerator method)
- Blauparts, Ram 1500 TRX 0W-40 (MS-12633) oil change kit