Why Won T My Toyota Rav4 Start. 2020 Hybrid Toyota RAV4 would not turn on indicating Smart Key System Malfunction - has less than 7000 miles on it is driven daily and no lights or other electrical components were left on. It could be a few different items causing your no start issue.

Rodent damage can be another reason why your Toyota RAV4 wont start. Toyota Rav4 20 D4D 2002 will not start when hot. If you accidentally hit this switch at any point your vehicle wont start up.
Engine turns over OK but does not fire.
Starts perfectly when cold and runs fine. This will tell you if your battery is too low on volts as if its very low like 4-7 volts it wont start the engine even with jump-start. Engine turns over OK but does not fire. Secondly there is a deactivation switch on the Smart Key.
