2022 Toyota Highlander — Battery Size & Group (BCI), CCA, Replacement Options

Quick answer

• Primary fitment (gas 3.5L V6): BCI Group 24F, top‑post
• Primary fitment (hybrid 2.5L): European H5/LN2 (aka BCI Group 47) — AGM preferred
• Recommended CCA (gas): 650–800 CCA (OE typically ~600–650; many upgrades 700–750)
• Recommended CCA (hybrid 12V): 550–680 CCA equivalent (AGM/EFB)
• Reserve capacity (gas 24F): ~120–150 minutes
• Reserve capacity (hybrid H5): ~100–120 minutes
• AGM vs flooded: Gas model uses standard flooded (AGM optional upgrade). Hybrid should use AGM (most trims ship AGM); follow OE label.
• Terminal layout: 24F = positive on left (when posts toward you). H5/47 = positive on right.
• Physical dimensions: 24F ≈ 10.3" L × 6.8" W × 8.9" H (260 × 172 × 225 mm). H5/47 ≈ 9.5" L × 6.9" W × 7.5" H (242 × 175 × 190 mm).
• Dual‑battery setup: Not applicable (no diesel/HD duals on Highlander).

Replacement battery options

Note: Part numbers vary by brand line; confirm group size (24F for gas, H5/47 for hybrid) and terminal orientation before purchase.

• Interstate
  • Gas (24F): Interstate M‑series/MT/MTP Group 24F (choose 650–750+ CCA)
  • Hybrid (H5/47): Interstate MT/MTP Group H5/LN2 AGM or EFB
• DieHard (Advance Auto)
  • Gas (24F): DieHard Gold/Platinum Group 24F
  • Hybrid (H5/47): DieHard Platinum AGM Group H5 (LN2)
• ACDelco
  • Gas (24F): ACDelco Gold/Professional Group 24F
  • Hybrid (H5/47): ACDelco Gold AGM Group 47 (H5/LN2)
• Odyssey (Enersys)
  • Gas (24F): Odyssey Performance/Extreme Group 24F AGM (premium, high reserve capacity)
  • Hybrid (H5/47): Odyssey Performance AGM Group 47/H5
• Toyota TrueStart (dealer)
  • Gas (24F) and Hybrid (H5/47): Direct‑fit OE replacements matched to VIN

AGM vs flooded — which does this vehicle need?

• Gas 3.5L V6 (non‑hybrid): From the factory, most 2022 Highlander gas models use a flooded Group 24F. An AGM upgrade is optional and can improve resistance to heat and accessory loads, but is not strictly required. If your vehicle has heavy electrical accessories or many short trips, AGM can be worthwhile.
• Hybrid 2.5L: The 12V battery primarily powers control modules and accessories. Most trims ship with an AGM in Group H5/LN2 (BCI 47). AGM is preferred due to better cycling durability. Always match the OE label under the hood; if the original battery is AGM, replace with AGM.

Post‑installation relearn / reset procedure

Tip: Use a memory saver during the swap to avoid resets. If the battery has been fully disconnected, do the following on a safe, level area:

1. Initial start and idle learn

• Start the engine, A/C and lights OFF. Let idle in Park for 5–10 minutes until warm. Then turn A/C ON and let idle 2–3 more minutes. This helps the ECM relearn idle speed.

2. Power windows initialization (each door)

• Key ON/engine running. Fully close the window, then hold the switch UP for 2–3 seconds. Repeat for all windows with auto‑up/down.

3. Moonroof (if equipped)

• Close the moonroof, then hold the CLOSE switch for ~2–3 seconds to reinitialize the one‑touch function.

4. Power back door (if equipped)

• Open the liftgate fully, then close it using the power switch. If operation is erratic, press and hold the power door button for a few seconds to recalibrate, or cycle it fully open/close once.

5. Clock, radio presets, and trip data

• Reset the clock and re‑enter presets as needed. Re‑pair Bluetooth if it dropped.

6. Steering angle/VSC calibration

• Drive straight at city speeds for a few minutes; any stability control or lane assist messages should clear as sensors recalibrate.

7. Smart key

• After reconnect, test all key fobs. If a fob is unresponsive, press the brake and hold the fob to the Start button to re‑sync.

Signs of a failing battery

• Slow or hesitant cranking, especially first start of the day
• Dim interior/LED accent lights, flickering screens at startup
• Intermittent “Not Ready to Drive” or stop/start disabled messages
• Frequent jump‑starts, or voltage under ~12.4 V after sitting overnight
• Electrical glitches: window auto function lost, random warning lights

Common battery issues for this generation

• Short‑trip driving pattern: The Highlander’s charging strategy and many powered modules (Safety Sense, telematics, power liftgate) can leave the battery undercharged if you only make brief trips. A periodic smart charger/top‑off helps.
• Choosing the wrong group or terminal layout: Gas models need Group 24F (left‑hand positive). Some parts listings show Group 24 (not “F”)—that places the terminals opposite and strains cables. Hybrids use H5/LN2 with right‑hand positive.
• Parasitic draws from accessories: Dash cams, OBD dongles, and aftermarket remote starts can drain the battery when parked.
• Heat and under‑hood location: In warm climates, batteries age faster. AGM options can offer longer life, especially for hybrids with frequent cycling.
• Corrosion on top posts: Keep terminals clean and tight; apply a dielectric protectant after installation.

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