Cadillac, Buick, Lincoln & Chrysler Cadillac Lyriq Jump Post Location & Safe Protocol

📍 Step 1: Terminal Location

Battery & Remote Jump Posts

Chrysler 300 / Sebring / Concorde / LHS & Cadillac CTS/ATS/CT5/DeVille/DTS & Buick Enclave/Lucerne: Use under-hood remote jump posts (batteries are located in the trunk, under the rear seat, or inside the front fender well).

⚠️ Step 2: ECU & Fuse Safety

IBS & Fusible Link Protection

Chrysler Pacifica Hybrid and Voyager/Pacifica Stop-Start vans have dual batteries (Main Group 94R + Aux AGM). Cadillac Escalade and Lincoln Navigator have power running boards that drain the battery when left ajar.

⚡ Step 3: Charging Check

Alternator Voltage Test

Post-boost verification of HV-to-LV DC-DC Converter (14.4V / 15.5V) output (13.8V–14.8V on 12V; 27.6V–28.4V on 24V commercial).

Cadillac, Buick, Lincoln & Chrysler Cadillac Lyriq Year-by-Year Specifications

Generation	Battery Group	CCA	Alternator	Starter	System Notes
Cadillac Lyriq (2021–2026)	Group 51R / Group 47 (H5) / 12V Aux or 16V Li-Ion	410–680 CCA / Low-Voltage Contactor Supply	HV-to-LV DC-DC Converter (14.4V / 15.5V) (14.2V–14.8V)	HV Main Contactor & Motor-Generator	Smart LIN/BSD Regulated AGM / Aux
Cadillac Lyriq (2015–2020)	Group 51R / Group 47 (H5) / 12V Aux or 16V Li-Ion	410–680 CCA / Low-Voltage Contactor Supply	HV-to-LV DC-DC Converter (14.4V / 15.5V) (14.0V–14.6V)	HV Main Contactor & Motor-Generator	High-Reserve AGM / EFB Start-Stop
Cadillac Lyriq (2008–2014)	Group 51R / Group 47 (H5) / 12V Aux or 16V Li-Ion	410–680 CCA / Low-Voltage Contactor Supply	HV-to-LV DC-DC Converter (14.4V / 15.5V) (13.8V–14.4V)	HV Main Contactor & Motor-Generator	High-CCA AGM / Lead-Acid
Cadillac Lyriq (1998–2007)	Group 51R / Group 47 (H5) / 12V Aux or 16V Li-Ion	410–680 CCA / Low-Voltage Contactor Supply	HV-to-LV DC-DC Converter (14.4V / 15.5V) (13.8V–14.2V)	HV Main Contactor & Motor-Generator	OEM Group Lead-Acid / AGM
Cadillac Lyriq (1980–1997)	Group 51R / Group 47 (H5) / 12V Aux or 16V Li-Ion	410–680 CCA / Low-Voltage Contactor Supply	HV-to-LV DC-DC Converter (14.4V / 15.5V) (13.6V–14.2V)	HV Main Contactor & Motor-Generator	Standard BCI High-CCA

Other Cadillac, Buick, Lincoln & Chrysler Models

Cadillac Allante Cadillac ATS Cadillac ATS-V Cadillac Brougham Cadillac Catera Cadillac Celestiq Cadillac CT4 Cadillac CT4-V Cadillac CT5 Cadillac CT5-V Blackwing Cadillac CT6 Cadillac CTS Cadillac CTS-V Cadillac DeVille Cadillac DTS Cadillac Eldorado Cadillac ELR Cadillac Escalade Cadillac Escalade ESV Cadillac Escalade EXT Cadillac Escalade IQ Cadillac Fleetwood Cadillac Lyriq Cadillac Optiq Cadillac Seville Cadillac SRX Cadillac STS Cadillac XLR Cadillac XT4 Cadillac XT5 Cadillac XT6 Cadillac XTS Buick Cascada Buick Century Buick Electra Buick Enclave Buick Encore Buick Encore GX Buick Envision Buick Envista Buick LaCrosse Buick LeSabre Buick Lucerne Buick Park Avenue Buick Rainier Buick Reatta Buick Regal Buick Rendezvous Buick Riviera Buick Roadmaster Buick Skylark Buick Terraza Buick Verano Lincoln Aviator Lincoln Blackwood Lincoln Continental Lincoln Corsair Lincoln LS Lincoln Mark VII Lincoln Mark VIII Lincoln Mark LT Lincoln MKC Lincoln MKS Lincoln MKT Lincoln MKX Lincoln MKZ Lincoln Nautilus Lincoln Navigator Lincoln Navigator L Lincoln Town Car Lincoln Zephyr Chrysler 200 Chrysler 300 Chrysler 300C Chrysler 300M Chrysler Aspen Chrysler Cirrus Chrysler Concorde Chrysler Cordoba Chrysler Crossfire Chrysler Fifth Avenue Chrysler Imperial Chrysler LeBaron Chrysler LHS Chrysler New Yorker Chrysler Pacifica Chrysler Pacifica Hybrid Chrysler PT Cruiser Chrysler Sebring Chrysler Town & Country Chrysler Voyager

Cadillac, Buick, Lincoln & Chrysler Cadillac Lyriq Jump Start Service Sacramento — Battery, Starter & Boost Specs