2021 RAM PROMASTER immobilizer

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Page 10 of 288

RAM PROMASTER 2021  Owners Manual 
8  
SYMBOL GLOSSARY
Some car components have colored labels with symbols indicating 
precautions to be observed when using this component. It is important to 
follow all warnings when operating your

Page 13 of 288

RAM PROMASTER 2021  Owners Manual 
GETTING TO KNOW YOUR VEHICLE11
Replacing The Battery In The Key Fob
The recommended replacement battery is 
CR2032.
NOTE:
Customers are recommended to use a 
battery obtained from Mopar. Aftermark

Page 14 of 288

RAM PROMASTER 2021  Owners Manual 
12GETTING TO KNOW YOUR VEHICLE  
(Continued)
SENTRY KEY  
The Sentry Key Immobilizer System prevents 
unauthorized vehicle operation by disabling the 
engine. The system does not need to be armed 
or

Page 52 of 288

RAM PROMASTER 2021  Owners Manual 
50GETTING TO KNOW YOUR INSTRUMENT PANEL  
Brake Warning Light, which will turn on when 
the brake fluid level in the master cylinder has 
dropped below a specified level.
The light will remain on unt

Page 280 of 288

RAM PROMASTER 2021  Owners Manual 
278  H
Hazard Driving Through Flowing, Rising, OrShallow Standing Water
.......................... 86Hazard Warning Flashers.............................. 190Head Restraints..........................

Page 282 of 288

RAM PROMASTER 2021  Owners Manual 
280  R
Radial Ply Tires
.............................................. 250Radiator Cap (Coolant Pressure Cap)............ 224Radio Frequency General Information.................................. 148R